StackOne Alternatives (September 2025)

Rapidly ship deep, secure HR Tech integrations with StackOne's innovative integrations platform.

4.9/5

17+ reviews

Reviewed on:

G2
1.
HR Software & Payroll SaaS Application For Enterprises | HROne
https://hron
.cloud/

HROne helps companies to automate the employee lifecycle. Awarded best cloud-based HR software in India & trusted by 4+ lacs users across 18+ industries.

2.
Integration Infrastructure for SaaS Products - Integration.app - Integration.app
https://integratio
.app/

Integration platforms are too restrictive. Level up your the integration infrastructure of your SaaS product with our AI-powered framework.

3.
Enterprise Application Integration Platform | APPSeCONNECT
https://www.appseconnec
.com/

APPSeCONNECT - A world-class application integration platform that offers seamless BPA across on-premise & cloud LOB applications to accelerate business growth.

4.
Unified, AI-powered iPaaS for every team to automate at scale | Tray.io
http://tra
.io/

Dramatically simplify API integrations with Tray connectors, the Connector Builder, and our Authentication and Projects features. Visit Tray.io to learn more.

5.
Embedded iPaaS for B2B Software Companies | Prismatic
https://prismati
.io/

Embedded iPaaS for B2B software companies. Integration platform to integrate with your customer's apps and add an integration marketplace to your SaaS product.

6.
The Modern Leader in Automation | Workato
https://www.workat
.com/

Unlock seamless integrations and connect apps effortlessly with Workato's industry leading intelligent automation platform.

7.
WorkBright | HR Onboarding Software | Remote Onboarding Tools
https://workbrigh
.com/

Breakthrough HR software that simply makes hiring and re-hiring easy. HR tools from applicant tracking to onboarding to 100% remote I-9 forms

8.
One API for all your integrations | Knit
https://www.getkni
.dev/

Fast track your integrations roadmap with the KNIT unified API. Webhooks based architecture, no data storage policy, and whitelabeled auth for complete peace of mind!

10.
Pandium - The Only Code-First Embedded iPaaS for B2B software Companies
https://www.pandiu
.com/

Build and launch native software integrations. We handle integration infrastructure for you, so you can build easier, launch faster, and generate ROI sooner.

11.
Merge - One Unified API for all HR, Payroll, Accounting, Ticketing, CRM, and ATS Integrations.
https://www.merg
.dev/

Build once, maintain, and onboard in days, not months. Single API integration to add all HR, payroll, ticketing, accounting, ATS, CRM, SCIM and directory platforms.

12.
HrFlow.ai | Unify, Unleash, Orchestrate Talent & Workforce Data.
https://hrflo
.ai/

HrFlow.ai is an API-first company and the leading AI-powered HR data automation platform. The company helps +1000 customers (HR software vendors, staffing agencies, large employers, and headhunting firms) to thrive in a high-volume and high-frequency labor market.

14.
Truto - Unified API Platform & Services
https://trut
.dev/

Build native integrations fast with Truto. Integration is a solved problem. Why have your best engineers work on integrations when they can focus on architecture, design, and product?

15.
IBM Sterling B2B Integration SaaS
https://www.ib
.com/products/b2b-integration-saas/

Trusted cloud-based business network to streamline, automate and fully digitize B2B transitions, augmenting the power of EDI with API capabilities.

16.
The .NET platform for Integration & Automation - Flowgear
https://www.flowgea
.net/

Integrate with any Application, Services, API or Database, in minutes not months, using our No Code Platform, with 200+ pre-built connectors, reusable workflows and APIs. Great for Enterprise, perfect for SME’s.

18.
Unified API for B2B API Integrations | Integration Labs
https://www.integrationlab
.co/

Discover the power of Integration Labs' Unified API for accounting, payments, and e-commerce integrations. Test, launch, and scale API integrations faster with a Unified API.

19.
Pliant - The Orchestration Platform
https://plian
.io/

Pliant’s API-driven orchestration platform automates, integrates, and connects the digital enterprise. With our low-code approach that transforms API code into deployment-ready action blocks, Pliant facilitates, integrates, and secures communication up and down the technology stack between platforms, services, and applications. Pliant accelerates traditionally manual tasks, eliminates silos, and reduces tool sprawl while accelerating innovation, productivity, and agility.

20.
Alloy | Integration Development Platform
https://runallo
.com/

Alloy is an embedded integrations platform used by engineering and product teams to simplify & accelerate all aspects of integration development - from user-customizability to polling infrastructure.

21.
WSO2 Integration - Your Systems, United and Efficient
https://wso
.com/integration/

Connected systems make you faster, more efficient, and highly competitive. In today’s world of fast moving business, connectivity is power.

22.
SmartRecruiters | The Best Talent Acquisition Software | Applicant Tracking System | Recruiting Software
http://www.smartrecruiter
.com/

Move beyond applicant tracking systems (ATS) with an enterprise-grade recruiting platform designed for the modern workforce. SmartRecruiters' Talent Acquisition Suite provides everything needed to attract, select, and hire great talent.

23.
Celigo: Integrate your apps. Upgrade your business.
https://www.celig
.com/

Empower your workforce with Celigo's next-gen integration platform. It unifies all your apps and data—so you can automate and optimize every business process.

24.
Stackline - Connected Commerce Platform
https://www.stacklin
.com/

Stackline is fueling the future of commerce by bringing brands and customers closer together. Stackline tools and teams help leading brands sell products across an ecosystem spanning online marketplaces, retail stores, social media, and direct-to-consumer.

25.
All-in-One HR platform PeopleForce
https://peopleforc
.io/

PeopleForce - HR software for businesses provides HR solutions for onboarding, recruiting, time tracking, performance, and more. Get started now!

26.
Unito: Stay in Sync With Enterprise-Grade Integrations
https://unit
.io/

Discover 2-way integrations to empower your digital organization to sync securely in under 12 minutes with a no-code solution.

28.
Bubble | Build Powerful Full-Stack Apps Without Code
https://bubbl
.io/

Discover the future of software development with Bubble, a no-code platform used to build SaaS tools, marketplaces, CRMs, & more — hosted securely in the cloud.

29.
Appmixer: Embedded iPaaS and Workflow Automation System
https://www.appmixe
.com/

Embed Appmixer in your SaaS product to launch native integrations and automation in days. Give your customers automation superpowers and grow your key metrics.

30.
ZapScale - The Easiest Customer Success Platform for B2B SaaS Companies
https://www.zapscal
.com/

ZapScale is the best customer success platform for SaaS with easy integrations, prebuilt KPIs & playbooks to proactively address customer needs, reduce churn & boost upsell

31.
Personio. The People Operating System.
https://www.personi
.de/

Effiziente Software für HR Management und Recruiting - individuell anpassbar. Verwalten Sie Urlaub, Gehälter und Bewerber in nur einem Tool. Jetzt testen!

32.
ChartHop - Connect & Visualize Your HR Data in One Place
https://www.chartho
.com/

Build comp and headcount plans, manage performance and engagement, and analyze all your people data in one powerful platform, no spreadsheets needed.

33.
HR Software & All-In-One HR Technology | Namely
https://www.namel
.com/

Unlock your business’ potential with our all-in-one HR software. Simplify payroll, compliance, benefits, and analytics with our complete HR platform.

34.
All-in-one HRMS & Payroll solutions | BrioHR
https://brioh
.com/

One platform. All your HR needs. With our scalable, user-friendly HR Software, HR is now empowered to play a strategic role and drive company performance.

35.
Stop Inbox Integration Headaches - Save Time with Aurinko APIs
https://www.aurink
.io/

Integrate email, calendar, contacts & tasks painlessly with Aurinko. Free trial, trusted by leading companies.

36.
20 Million+ Ready Automations For 1200+ Apps | Integrately
https://integratel
.com/

Non-Techie? Integrate your apps in 1 click. All you need to do is activate the automation. 42,000+ customers. Live chat support. Less expensive. Get started for free.

37.
HR Software That Drives Results | HireRoad
http://www.peopleinsigh
.com/

Make better business decisions with best-in-class people analytics. HireRoad HR software turns your siloed data into clear, actionable insights in days.

38.
Nakisa HR Suite Product Overview - Nakisa
https://nakis
.com/resources/nakisa-hr-suite-product-overview/

The Nakisa HR Suite is the only software in its category that seamlessly integrates with all major ERP and HCM solutions.

39.
Hybrid Integration Platform (HIP) | APIANT
http://apian
.com/

Hybrid Integration Platform (HIP) defines the ability to connect apps and systems on the cloud (public & private) and on-premise, enabling integration specialists and nonspecialists to automate their business. With thousands of pre-built connectors and no coding required, APIANT is the Ultimate Hybrid Integration Platform.

40.
iPaaS Solution for the Enterprise | SnapLogic
https://www.snaplogi
.com/

SnapLogic's iPaaS platform empowers enterprises by automating application, data and cloud integration. Reach digital business transformation with SnapLogic.

41.
Recruitment Software for Staffing Agencies | JobDiva
https://www.jobdiv
.com/

JobDiva's industry-leading recruitment software for staffing agencies helps thousands of recruiters maximize their business potential. Request demo today!

42.
Anchanto Suite Of SaaS Products For E-commerce Businesses
https://anchant
.com/

Connect your e-commerce systems, operations, and platforms with leading B2B software for order, warehouse, and delivery management.

43.
SyncEzy – Integrations for QuickBooks Time & more
https://syncez
.com/

SyncEzy is two-way integration platform that connects apps like QuickBooks Time, simPRO, Salesforce, Asana, Zoho and more.

44.
B2B Integration Platform by Babelway, a Tradeshift Company
https://www.babelwa
.com/

Babelway is a B2B integration platform specialized for data translation and communication, fully available on-demand via your web browser.

45.
Klamp | Best SaaS Integration Platform
https://www.klam
.io/

Klamp offers an Embedded iPaaS with no-code automation, allowing users to build & manage integrations.

47.
B2B Integration with a Private Cloud by Axway [B2Bi]
https://www.axwa
.com/en/products/b2b-integration/

Discover Axway’s B2B cloud compatible integration that allows you to securely engage with your customers and partners across multiple digital channels.

48.
Boomi Integration Platform as a Service: Connect Everything
https://boom
.com/

Boomi iPaaS solutions help you power the future of your business with intelligent integration and automation. Connect everything, everywhere, with Boomi.

49.
SYNC: The data integration app that simplifies business.
https://www.commercien
.com/

Commercient provides businesses with fast and flexible ERP & CRM integration apps that provide a 360-degree view of your business. Reach out to learn more.

50.
BambooHR: The Complete HR Software for People, Payroll & Benefits
https://www.bambooh
.com/

BambooHR makes it easy to simplify HR, with award-winning solutions for everything from hire to retire. Learn more with a free demo today.

51.
SourceWhale - Business Development & Candidate Sourcing for Recruiters
https://sourcewhal
.com/

Start boosting engagement, increasing meetings and elevating revenue today with SourceWhale - the industry-leading recruitment engagement platform.

52.
B2B trading over AS2 protocol | AS2 Gateway
https://as2gatewa
.com/

AS2 Gateway is an assured B2B trading platform EDI for secure file transfer via AS2. Developed by Aayu Technologies, the solution provides reliability for businesses

53.
Trakstar - Employee Performance Software
https://learn.traksta
.com/

Performance appraisal software online that is easy to use for unlimited employee reviews, 360 feedback, and goal setting.

54.
Paragon | Embedded iPaaS for Developers
https://www.useparago
.com/

Ship every SaaS integration your users need, with 70% less engineering. Engineering teams use Paragon's Embedded iPaaS for developing native product integrations.

55.
Trakstar - Employee Performance Software
https://hire.traksta
.com/

Performance appraisal software online that is easy to use for unlimited employee reviews, 360 feedback, and goal setting.

56.
Electronic Data Interchange for effortless B2B connections
https://omnizo
.net/

Make your daily struggle with B2B/EDI ( Electronic Data Interchange ) resources history. Streamline your operations, easily connect with partners, and overcome digitization challenges.

57.
Buster.Ai - Countering Deepfakes with Generative AI
https://www.buste
.ai/

Buster.Ai is your digital shield against misleading and deepfake contents that threaten your company's security and finances. Thanks to our SaaS platform with Generative AI and award-winning Large Language Models, we protect companies and governments against informational threats in two steps: preemptively alerting on risks before damage occurs and automatically taking counter-actions to contain and prevent new attacks. Thanks to Buster.Ai's B2B SaaS platform, CISOs and CMOs can take a preventive approach to crisis management before financial or reputational damage occurs.

58.
Trakstar - Employee Performance Software
https://www.traksta
.com/

Performance appraisal software online that is easy to use for unlimited employee reviews, 360 feedback, and goal setting.

59.
APIFuse: Embedded Integration platform for SaaS apps
https://apifus
.io/

API Fuse is an embedded iPaaS solution purpose built for native integration. Deliver the product integrations your end users expect faster and focus on your core product instead of building and maintaining integration code.

60.
Home - X0PA AI
https://x0p
.com/

Looking to improve hiring efficiency? X0PA AI uses patented algorithms to find the best candidates bias-free, while reducing cost and time.

61.
Unicommerce | E-commerce Enablement SaaS Platform
http://www.unicommerc
.com/

An integrated e-commerce enablement SaaS platform designed to fulfill the needs of Sellers, D2C brands, and Retailers to streamline business operations.

62.
Stytch – The most powerful identity platform built for developers
https://stytc
.com/

Secure and scale your product with Stytch's identity platform. From authentication to fraud protection, we have the APIs and SDKs for your use case.

65.
N.Rich | The Most Agile Account-Based GTM Platform
https://
.rich/

ICP Builder • Intent Data • ABM Advertising • Account-Based Pipeline Attribution. Start and scale your account-based motion easily without compromising on data quality and global reach.

66.
HCM, HRM System - tomHRM - Tools for managers and HR
https://tomhr
.com/en/

Customizable HR Software Management for a better workplace. Select apps you need or unleash the potential of HR software to manage the full employee.

67.
All-in-One HR Software: Online HR, Payroll & Benefits
https://www.goc
.io/

GoCo's all-in-one HR software solution streamlines manual tasks. Features include digital onboarding, benefits administration, payroll, and compliance.

68.
Partner Ecosystem Platform | Rated #1 | PartnerStack
https://partnerstac
.com/

Grow your SaaS brand the easy way. PartnerStack helps you recruit, engage, and scale your entire ecosystem of partners — from affiliates to referral and reseller partners.

69.
Top Talent Recruiting & Onboarding Solutions | Cornerstone
https://www.cornerstoneondeman
.com/platform/recruiting-and-onboarding/

Optimize talent acquisition to find top talent, automate recruiting and onboarding tasks, and get insights on your internal talent pool to match them to roles.

70.
API Integration Platform with webMethods.io iPaaS
https://www.softwarea
.com/en_corporate/platform/integration-apis/api-integration-platform.html/

API integration Platform-as-a-Service (iPaaS) provides capabilities offered by ESBs, data integration systems, API management tools and B2B gateways.

71.
Best AI & Automation Software for Hiring 2024
https://turbohir
.co/

Discover our step-by-step guide to mastering Boolean search for effective candidate discovery in hiring. Unlock the secrets to smarter recruitment.

72.
Hireology: HR & Recruitment Platform | Attract, Hire, Manage
https://www.hireolog
.com/

Attract, hire, and manage talent from one HR & recruitment platform. Turn hiring, HR, and payroll into a process your team and candidates will love.

73.
Frontegg | User Management for modern B2B SaaS
https://www.fronteg
.com/

Frontegg is an end-to-end user management platform for B2B SaaS, powering strategies from PLG to enterprise readiness. Easy migration, no credit card required.

74.
Skills Management Software for Skills-First Organizations - tilr
https://www.til
.com/

Tilr is a skills management platform that allows businesses to adopt a skills-first approach to candidate matching and employees' training. Get a demo!

75.
Gravio - The IoT & Edge Integration Platform
https://www.gravi
.com/

Gravio is a platform that connects IoT devices. It is built for companies who like to start small and quickly, and yet have the possibility to scale up robustly and fast. Other than most IoT platforms, Gravio leverages the power of Edge Computing and Artificial Intelligence.

76.
All-in-one Incentive Compensation Management | ShareForce
https://www.shareforc
.net/

Streamline employee cash and equity incentives with our all-in-one incentive compensation management software. Book a demo with Shareforce.

77.
Adeptia AI data exchange platform for B2B integration
https://www.adepti
.com/

Adeptia’s AI & self-service platform improves external data integration, data quality, and data governance to automate your business data exchanges

78.
Simplify the Complex | Compensation Management Software
https://comptra
.com/

Align strategy, performance and compensation with CompTrak’s suite of configurable compensation management solutions.

79.
Agentnoon: Workforce Planning and Organizational Design software
https://agentnoo
.com/

Agentnoon's Workforce Planning and Organizational Design Software that helps you plan, build & visualize an efficient org with data driven insights.

80.
B2B Gateway & Managed File Transfer (MFT) Software | OpenText
https://www.opentex
.com/products/b2b-gateway/

On-premises B2B Gateway that helps with B2B integration & fast & secure managed file transfer (MFT) to exchange virtually any document type or size

81.
PCRecruiter - Recruitment Software & Applicant Tracking System
https://www.pcrecruite
.net/

Integrating an applicant tracking system (ATS) with customer relationship management (CRM) PCRecruiter is the all-in-one recruitment software.

82.
Workera is the fastest way to enterprise-scale AI-ready workforces.
https://worker
.ai/

Transform talent management with Workera’s verified skills intelligence platform, empowering your team to hire, upskill, and grow using data-driven insights.

83.
Customer Identity Platform for Startups | Auth0 by Okta
https://auth
.com/startups/

We're bringing the convenience and security of Auth0 by Okta to eligible startup customers so you can get your apps up and running quickly and keep customer data secure.

84.
Warmly | Reveal and Convert Website Visitors, Instantly
https://www.warml
.ai/

Warmly's revenue orchestration platform unlocks the true power of your tech stack. Identify which people and accounts to prioritize, the stage of the buyer journey, and orchestrate the most effective next step to accelerate your pipeline, automatically.

85.
Tydy, a Phenom company: The future of phenomenal onboarding
https://www.tyd
.co/

We're transforming how companies onboard and offboard employees - shortening time to productivity for employees and creating efficient talent experiences for HR practitioners, all from one Al-powered platform.

86.
Total Recruiting Software Solution | Rakuna
https://www.rakun
.co/

Rakuna offers comprehensive recruiting software for your needs, from Recruiting CRM, Campus & Event Recruiting, Text Recruiting to Interview Scheduling.

87.
HCM Deck – The Employee Development Platform for Modern Enterprises
https://hcmdec
.com/

HCM Deck is an HR enterprise platform that helps companies refine employee development and create a compelling employee experience. Request a free demo.

88.
Modern Hiring Software & Applicant Tracking System | Breezy HR
https://breez
.hr/

Improve your entire hiring process with Breezy HR. Our applicant tracking system (ATS) helps you attract & hire quality employees in less time.

89.
webMethods.io B2B | Software AG
https://www.softwarea
.com/en_corporate/resources/application-integration/ds/webmethods-io-b2b.html/

With Software AG’s webMethods.io B2B, learn how to simplify how you exchange your B2B documents in the cloud—and avoid infrastructure headaches and costs.

90.
Omnata: 'No-middleware' integration for enterprise platforms
https://omnat
.com/

'No-middleware' integration for enterprise platforms. Sync data directly between Snowflake and SaaS apps with Omnata Sync. Live-query your data warehouse from Salesforce with Omnata Connect.

91.
Enterprise ecommerce, simplified. | BigCommerce
https://www.bigcommerc
.com/

Learn how BigCommerce powers your business with enterprise ecommerce capabilities—with lower cost and complexity.

92.
CaliberMind | Marketing Decision Engine for B2B Marketing Analytics
https://www.calibermin
.com/

Optimize spending and maximize results with CaliberMind's Marketing Decision Engine. Capture and map outcomes, improve marketing attribution, and more!

93.
Pave | The Leading End-to-end Compensation Platform
https://www.pav
.com/

Pave combines real-time market data with streamlined compensation workflows. Optimally manage your biggest expense. Build confidence in every comp decision

94.
Checkr – Employee Background Screening for Companies
https://check
.com/

Checkr platform uses AI to make background screening more efficient, speed up the hiring process, fill roles faster & drive more revenue. ✓ Start for free!

96.
JumpCloud: Unified Platform for Identity, Access, & Devices
https://www.resm
.com/

JumpCloud makes it simple to manage Windows, Apple, Linux, and Android devices and to deliver secure access with SSO, MFA, Zero Trust, RADIUS, and more.

97.
HiBob: Award-winning HR system for all of your HRIS needs
https://www.hibo
.com/

Bob’s HR system helps modern, dynamic companies drive productivity, engagement, and retention. Ready to see how our HRIS can help you today?

98.
Talentum | Applicant Tracking System | ATS Ranking Software | Arca24
https://www.arca2
.com/en/talentum-talent-acquisition-software/

Talentum is a cloud HR software with a candidate applicant tracking system and a hiring software for new candidates and manager. One of the best recruiting software with the artificial intelligence in hr.