TestGorilla vs HackerRank vs Criteria: which assessment tool is better?

TestGorilla, HackerRank, and Criteria compete for the same budget line but solve three different measurement problems, which is why a single ranking would mislead you. TestGorilla is a broad screening library holding more than 350 tests across cognitive ability, personality and culture, language, programming, software tools, situational judgment, and role-specific skills [1][2]. HackerRank is a technical assessment platform for engineering teams, with content mapped to 77 roles and more than 260 skills, including multi-file project questions that put a candidate into a realistic codebase instead of an isolated puzzle [5]. Criteria is a psychometric publisher that sells software around its own validated instruments, covering cognitive aptitude, personality, emotional intelligence, risk, and skills [8].

The pricing models meter completely different things

Sticker prices do not compare across the three because each vendor charges for a different unit. TestGorilla sells credits, where a skills test costs one credit per candidate and an AI interview or job simulation costs two, with 400 credits bundled into the Core plan at $142 per month, billed annually at $1,704 [1]. HackerRank sells candidate attempts, with 120 a year on the $165 per month Starter plan and 300 a year on the $375 per month Pro plan, plus $20 for each additional attempt [6]. Criteria publishes no list price and quotes against headcount, though independent review data puts the entry point near $1,200 a year [7][12].

Where the three genuinely overlap

All three run remote assessments with integrity controls, connect to mainstream applicant tracking systems, and return a score you can rank candidates against [3][5][10][11]. The overlap ends at depth, since TestGorilla's 83 programming tests filter obvious mismatches without replacing a technical interview loop [2], and Criteria's skills family covers job readiness, computer skills, Microsoft Office, and English proficiency rather than software engineering [8]. Criteria lists HackerRank among its own integration partners, which signals that enterprise buyers treat the two as complements [10].

TestGorilla fits when you hire across many job families and want one screening layer that covers far more than coding. The library is organized into eight categories, and the published counts are 162 role-specific tests, 83 programming tests, 59 software-skills tests, 37 language tests, 17 cognitive ability tests, 13 situational judgment tests, 6 personality and culture tests, and 4 typing tests [2]. A recruiter filling a support lead, a bookkeeper, and a junior developer in the same quarter can assemble all three assessments in one place.

The free tier gives you 10 credits a month, one admin seat, and unlimited hiring manager seats, enough to trial the workflow on a single opening [1]. Core, at $142 per month billed annually, adds 400 credits, a second admin seat, the full test library, and sourcing access to a pool the company puts at more than 2 million candidates [1]. Plus starts at $400 per month and is where custom tests, coding challenges, API access, and ATS integrations appear [1][4].

The honest caveat is that the Core price understates real cost for most buyers, because ATS integrations sit on Plus and a hiring team moving candidate data by hand loses much of the time the tool was bought to save [1][4]. Independent review data also flags a learning curve on custom assessment building and real setup effort to connect HR systems [13]. Coding depth is the other limit, since TestGorilla's programming tests screen for competence rather than evaluating engineering judgment the way a dedicated technical platform does [13].

HackerRank fits when the role is a software engineer and the screen has to survive scrutiny from the engineers who will work with the hire. Its content covers 77 roles and more than 260 skills, and it includes multi-file project questions that ask a candidate to implement a feature across a realistic codebase rather than solve a standalone algorithm problem [5].

Integrity controls are where the platform is most clearly built for volume. HackerRank runs a proprietary model to detect suspicious coding activity, an AI proctor, identity verification that watches for multiple faces in a session, tab proctoring, and session replay [5]. You can also set explicitly whether candidates may use AI tools during an assessment and enforce that rule, which matters now that an unsupervised coding test without that setting measures something different from what it measured three years ago [5].

Pricing is metered by candidate attempt. Starter runs $165 a month, or $1,990 billed annually, covering one user, more than 2,000 questions, and 120 attempts a year, while Pro runs $375 a month, or $4,490 annually, covering unlimited users, more than 4,000 questions, and 300 attempts. Enterprise is quoted and opens the full library of roughly 7,500 questions, and extra attempts cost $20 each on both published tiers [6].

The caveat is that attempt pricing works against wide-funnel screening, since Pro's 300 attempts amount to 25 candidates a month and a team testing everyone who applies will pay overage or move up a tier [6]. Independent reviews also note that HackerRank challenges can feel abstract next to day-to-day engineering work, and that narrow scoring sometimes penalizes functionally correct code [13].

Criteria fits when you need selection decisions you can document and defend, particularly at volume or in roles where a bad hire is expensive. The portfolio holds five assessment families, cognitive aptitude, personality, emotional intelligence, risk, and skills, alongside game-based instruments such as Illustrait, with the company reporting more than 60 million tests administered over 15 years [8].

What separates Criteria from a test marketplace is published psychometric documentation per instrument. The Criteria Cognitive Aptitude Test, its flagship, is a 50-item test with a 15-minute limit, standardized on 985 working adults from over 50 companies, with a mean of 24.2, a standard deviation of 8.58, and construct validity correlations against other leading aptitude tests running from .55 to .8 [9]. Criteria also cites research placing cognitive aptitude at 1.6 times as predictive of job success as an interview and 4 times as predictive as experience, a vendor-reported figure best read alongside independent meta-analytic work [9].

Packaging is three products: Criteria Assess for the assessment portfolio, Criteria Interview for async and live video, and Criteria Hire for both, with AI upgrades and a Criteria Develop add-on quoted separately [7]. Integration coverage is the widest of the three, with more than 70 named partners across ATS, HCM, HRIS, and SSO categories, including Greenhouse, iCIMS, Workday, SAP SuccessFactors, Lever, and HackerRank itself [10]. Proctoring combines image capture, image analysis, screen and audio sampling, and reporting back to the employer [11].

The caveat is commercial opacity, because Criteria publishes no rates at all and the independent figure of roughly $1,200 a year reads as a floor rather than a quote [7][12]. Reviewers also report a learning curve for heavily customized assessments, though satisfaction across 414 reviews sits at 93 percent [12].

Legal responsibility for a selection procedure sits with the employer, not the assessment vendor. Under Title VII, if a test disproportionately excludes people on the basis of race, color, religion, sex, or national origin, the employer has to show the procedure is job-related and consistent with business necessity, and the Uniform Guidelines on Employee Selection Procedures, adopted in 1978, set out three accepted ways to demonstrate that [14]. Even a validated test can be challenged if a less discriminatory alternative was available and would have served the same purpose [14].

Cognitive ability tests are the category where this matters most, because mean score differences across demographic groups are well documented in the research literature, which is why a published technical manual and a local validation study carry practical weight rather than marketing weight [9][14]. Running your own adverse impact analysis on your actual applicant pool and selection ratio is the step buyers skip most often, and no vendor can do it for you.

The ADA adds a separate obligation, because employers must make reasonable accommodations in the administration of tests for otherwise qualified individuals with known disabilities [14]. That means alternate formats, assistive technology, or adjusted timing, applied so the accommodation does not undermine what the test measures. Confirm before you buy that your vendor supports extended time and screen-reader-compatible delivery, since retrofitting an accommodation mid-process is where problems surface.

This describes general obligations under US federal law and is not legal advice. Several states and cities now regulate automated employment decision tools separately, so check with counsel before deploying scored screening at scale.

Build a cost model against your real hiring volume before you compare quotes, because the three vendors meter different units and the cheapest headline can be the most expensive at your numbers.

Usage meters, not seat counts, drive the bill

TestGorilla charges credits per candidate per test, so an assessment stacking four tests and a video question consumes five credits for one applicant [1]. HackerRank charges per attempt regardless of assessment length, which favors deep assessments and penalizes wide funnels [6]. Criteria quotes against headcount, predictable once you have it but invisible until a sales call [7].

Features you assumed were included may sit a tier up

TestGorilla puts ATS integrations, custom tests, and coding challenges on Plus rather than Core [1][4]. HackerRank gates library size by tier, so the widely quoted 7,500-question figure describes Enterprise, not the plans with published prices [5][6].

Proctoring buys integrity and costs goodwill

Snapshot capture, screen and audio sampling, and session replay all reduce cheating risk, and candidates see every one of them [3][5][11]. Heavy monitoring on a first-round screen for a low-stakes role tends to cost you completions, so match the control level to what is genuinely at risk.

AI assistance changed what an unsupervised test measures

Any take-home coding assessment now measures a candidate working with a model unless you say otherwise and enforce it. HackerRank exposes that as an explicit setting [5], while TestGorilla's controls lean toward flagging outlier behavior rather than claiming to catch cheaters [3].

Vendor-published validity is still vendor-published

Criteria publishes more documentation than the other two, which is a real advantage, and it remains the vendor's own research [9]. Ask for the technical manual, ask what the criterion measure was, and ask whether the coefficients are corrected for range restriction, since the corrected number is always larger.

They are not background checks

None of the three verifies employment history, education, or criminal records, which is a separate product category governed by the Fair Credit Reporting Act. Criteria's risk assessments measure integrity, rule adherence, and unsafe behavior as self-reported traits rather than verified history [8].

They are not a replacement for structured interviews

All three are screening layers that narrow a pool before humans get involved. Criteria sells video interviewing alongside its assessments because the two do different jobs [7], and HackerRank pairs its screening product with a separate live interview product [5].

They are not legal cover

Buying a validated instrument does not transfer liability, because the employer still has to show job-relatedness and business necessity for a procedure with adverse impact, and still has to accommodate candidates with disabilities [14].

They are not interchangeable at the technical end

TestGorilla's 83 programming tests and HackerRank's multi-file project library are not the same product at different price points [2][5]. Criteria's skills family covers job readiness, computer skills, Microsoft Office, and English proficiency, a different definition of skills altogether [8].

Personality and risk instruments are not medical examinations

They are sold as work-behavior measures rather than clinical tools, but the ADA still limits what an employer may ask before an offer, so how an instrument is administered matters more than what it is called [14].