Upstack vs. interviewstream Comparison Chart

Greenhouse is more than an ATS – they’re a true hiring partner that gives companies of all sizes everything they’ll ever need to get measurably better at hiring. With Greenhouse, organizations can cut recruiting costs and ensure every hire is the right hire. Their industry-leading, AI-powered software supports every stage of the hiring process, from sourcing to onboarding, empowering companies to hire top talent quickly, consistently and fairly – today and as their business grows. With a structured hiring approach at its core, Greenhouse makes it easy to define the role, requirements and attributes of a successful candidate before a job is posted, enabling internal alignment and more confident, data-driven decisions. Greenhouse Real Talent™ enhances this process by helping teams identify and prioritize real, qualified candidates while detecting fraud, spam and impersonation attempts.

Hire the World. Pay with a Click. Meet Transformify (TFY). Hiring internationally? Juggling independent contractors across the globe? We’ve got you covered. Transformify (TFY) is one simple platform for global hiring and contractor management—built to make growing your team easy, compliant, and stress-free. Talent acquisition is a breeze with TFY’s AI-powered ATS. Need AI-assisted job descriptions with direct ChatGPT integration? You’ve got it. AI-powered candidate matching and predictive hiring insights? You can bet on it. Found the right talent? Onboard your team in one click: contracts, documents, done. Worried about compliance? Don’t be. TFY’s Contractor of Record (AOR) service mitigates all independent contractor misclassification risks, so you can hire globally with confidence. Automate billing and pay contractors in 184 countries using Revolut, Payoneer, local bank transfers, push-to-card, SWIFT, SEPA, PayPal, Venmo, 28+ cryptocurrencies and more.

Humanly is an AI-first recruiting platform that helps talent teams hire in days, not months—without adding headcount. Our intuitive CRM pairs with powerful agentic AI to engage and screen every candidate instantly, surfacing top talent fast. Built on insights from over 4 million candidate interactions, Humanly delivers speed, structure, and consistency at scale—engaging 100% of interested candidates and driving pipeline growth through targeted outreach and smart re-engagement. We integrate seamlessly with all major ATSs to reduce manual work, improve data flow, and enhance recruiter efficiency and candidate experience. Independent audits ensure our AI remains fair and bias-free, so you can hire confidently.

Workable is an all-in-one HR platform that helps businesses find great candidates, hire faster, and manage their teams more effectively. With a world-class Applicant Tracking System and a flexible HRIS, it’s your system of record for everything HR. With Workable, you can: 1. Source talent: Post to 200+ job boards and access 400M+ candidate profiles 2. Simplify hiring: Use AI-powered screening, self-scheduled interviews, and automated offer management 3. Manage employees: Automate onboarding, store HR data, and handle performance reviews 4. Track time & attendance: Manage time off, monitor work hours, and generate payroll reports 5. Leverage AI: Source candidates,write personalized emails, and create interview kits effortlessly Workable is designed to be easy to use, with a mobile app for on-the-go management and outstanding customer support. Our software is trusted by over 30,000 companies in more than 100 countries, helping them build high-performance teams.

Folks is a Canadian-owned HR platform built for SMBs, combining three seamlessly integrated products to help you hire, manage, and pay your team — all in one place. Trusted by 1,200+ Canadian organizations managing over 125,000 employee records. With Folks HRIS, centralize employee records, onboarding, time tracking, absence management, and compliance — configured for Canadian employment standards across all provinces. Folks ATS streamlines recruitment with AI-powered candidate matching, job board integrations (Indeed, LinkedIn, Jobillico, Talent.com), and applicant tracking — built on the Glow Talents acquisition (2024). Folks Payroll handles CRA remittances, T4/RL-1 generation, ROE filing, CPP/QPP/CPP2, EI, multi-province tax calculations, WSIB/WCB, and direct deposit — no third-party payroll provider needed. SOC 2 Type 2 certified. All data hosted in Canada. Fully bilingual (English/French). Plans start at $6/employee/month.

At ZipRecruiter, our mission is to actively connect people to their next great opportunity. ZipRecruiter's smart matching technology finds candidates with the right skills and experience and prompts them to apply. It uses ZipRecruiter AI to analyze the keywords, skills, experience, and location details in your job description. It then compares this information with the profiles and resumes of millions of job seekers in our database. The system then presents you with candidates whose qualifications are the strongest match, helping you quickly identify top talent. It also sends jobs to 100+ job boards with one click. ZipRecruiter provides 24/7 customer support rated highest for quality among major hiring platforms. You can contact us via: Phone, Live Chat or Email. ZipRecruiter is the #1-rated hiring site according to G2. ZipRecruiter delivers quality candidates to 80% of employers within the first day. ZipRecruiter serves both small businesses and enterprise employers.

Skillfully transforms hiring through AI-powered skill simulations that show you how candidates actually perform before you hire them. Our platform helps companies cut through AI-generated resumes and rehearsed interviews by validating real capabilities in action. Through dynamic job specific simulations and skill-based assessments, companies like Bloomberg and McKinsey have cut screening time by 50% while dramatically improving hire quality. Key features: Dynamic job simulations that test real-world capabilities AI-powered skill validation across technical and soft skills Automated screening that identifies top performers early Seamless ATS integration Performance-based interview guides Detailed candidate insights and analytics Bias-free, objective evaluation process Results include 74% lower hiring costs, 50% faster hiring process, and 10x improvement in candidate conversion rates.

Discover candidates’ real skills - not just their resumes - with Canditech’s candidate evaluation platform. Canditech helps HR professionals and hiring managers make fast, confident, and objective hiring decisions - based on how candidates actually perform on the job. Companies using Canditech cut up to 80% of unnecessary interviews, saving valuable time while improving quality of hire. The platform offers pre-employment assessments that simulate real-world tasks and measure both technical and soft skills, including: - Coding, SQL and Excel challenges - Business writing and open-text responses - Soft skills like critical thinking, problem-solving and communication - One-way structured video interviews All assessments are auto-scored - reducing bias and ensuring consistency. See how candidates will perform in the role - before they’re hired.

Built by experienced TA professionals, Boon is the world’s most agile referral hiring platform that scales across your entire community to deliver better hires, faster. While legacy referral platforms take up to eight weeks to implement, Boon starts delivering results within days. We accomplish this through seamless integrations, swift onboarding, and flexible contracts that are designed to scale with your business. Once you're up and running watch as your referral program magically scales itself through the power of automation, AI-driven recommendations, and advanced engagement features. Boon companies hire 52% faster, source 5x more referrals, and save 40% per hire.

Serving more than 25,000 professionals, Crelate is the AI-powered Living Platform™ for modern recruiting. Built for high-performing teams across executive search, direct placement, and in-house talent teams, Crelate combines a powerful ATS, robust Recruiting CRM, and intelligent sourcing in a single, flexible platform. With agentic AI, customizable workflows, and real-time insights, Crelate helps teams activate their proprietary data, reduce tool sprawl, and solve strategic recruiting challenges at scale. Since 2012, our mission has been to grow lasting prosperity for all by empowering entrepreneurship and employment.