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Assessly vs HackerRank: an honest comparison

People arriving here are hiring engineers and deciding how much of the judgement to hand to a machine. Worth knowing where Assessly sits before you read further: it runs the code and reads it, and it scores the written reasoning beside it with the same care.

What the candidate meets, in order

  1. Multiple choice
  2. Multiple choice
  3. Multiple choice
  4. Short text
  5. Long text

Algorithmic Reasoning Simulation

What each one costs to start

Assessly

From $29 a month

Or free: 20 answers a month

Answers are included per month and metered past the allowance, so a busy month does not need a bigger yearly tier. Code execution is on the Pro plan.

HackerRank

From $79 a month, billed yearly

Starter, $948 a year for 60 candidate attempts a year, or $99 month to month. Pro is $419 a month yearly for 360 attempts. Extra attempts $20 each. No free plan; a trial.

Both prices as published by each company on the date the comparison was checked, in the currency they publish. HackerRank may offer other terms on request; so do we above the Business plan.

  • Code that runs, in the same assessment as the why

    A candidate writes code in the browser as one question among others, on the Pro plan. It runs against your test cases, and the code itself is read and scored with the reasoning written out, so a passing test and a good approach are both on the report.

  • Reasoning beside the passing test

    Because the code is read as well as executed, a candidate who explains a tradeoff well can be scored for it, and one who guesses their way to a green test is not automatically strong. The report shows both.

    84
    Score from 0 to 100, per answer
  • One assessment, 18 question types

    A practical task, a written explanation and a recorded answer can sit in the same assessment, which is closer to how an engineering interview actually goes.

Assessly and HackerRank, side by side

Both columns are read at the first paid plan of each tool, ours at Starter for $29 a month, theirs at the plan named in the header. Our column comes from the plans the product enforces, so it cannot be tidied by hand. Theirs is read from their public pages on the date below. Where only a dearer plan carries something, the cell names that plan and its price. A question mark means we could not verify it there, not that it is missing.

What you are weighingAssesslyStarter, $29 a month, no yearly contractHackerRankStarter, $79 a month, billed yearly
A free plan you can actually hire fromYes20 answers a month, no cardNoTrial only
Monthly billing, published priceYesYesAt a higher monthly rate
Read the real questions before you payYesSample questions on every template pageNot verifiedLibrary behind the login
AI score with the reasoning written out, per answerYesWith a caveatIn the AI interviewer; free-text questions in Screen are marked by hand
Recorded video answersYesWith a caveatA conversational AI session rather than a recorded question
Video and audio transcribedYesWith a caveatIn the AI interviewer
Code run against test casesWith a caveatFrom Pro, $99 a month, metered past the allowanceYesHidden test cases, 55 or more languages
Job simulationsYesWritten as questions, not a sandboxWith a caveatProject and repository questions
The assessment itself in several languagesYes12 languages, the questions themselvesNot verified
Behavioral or personality inventoryYesBig Five, scored per traitWith a caveatThrough the AI interviewer only
Integrity signals: paste, tab focus, typing, AI textYesReported, never acted on automaticallyYesPlagiarism model, paste and tab tracking
Camera proctoring of the candidateNoBy designYes
Positions and a candidate pipelineYesNoIntegrates with an ATS instead
Public API and webhooksYesWith a caveatEnterprise plan, by quote
No account or install for the candidateYesNot verified

Checked against the public pages of HackerRank on September 17, 2026. If something has changed since, tell us and we will correct it.

Sources: HackerRank pricing, HackerRank Screen, G2 reviews

Where HackerRank is stronger

  • A library of more than 7,500 questions across 55 or more programming languages, with hidden test cases, time and memory limits, and certified assessments for about 80 technical roles.
  • Live pair-programming interviews with recording and playback, and an AI interviewer bundled into every plan.
  • Plagiarism detection built on a large corpus of submissions, with session replay and webcam checks.
  • Recognition: most developers have used it, so the format needs no explaining.

Where Assessly is stronger

  • Written and recorded answers are scored with the reasoning written out. On HackerRank Screen, free-text questions are marked by hand.
  • One assessment covers the engineer and the rest of the company: the same tool screens a support lead or a product owner, with templates for those roles.
  • Code runs against your test cases on Pro, and the code is also read, so a good approach that fails an edge case is scored for the approach.
  • No yearly attempt cap. Answers are included per month and metered past that, and the free plan exists.
  • Every template readable in full before you sign up.

So which one?

Pick HackerRank if

You hire engineers at volume, want a deep bank of algorithm problems with hidden tests, live coding interviews and plagiarism detection at scale.

Pick Assessly if

You want the take-home to test reasoning as well as correctness, hire for more roles than engineering, and want a monthly price with no attempt budget to manage.

How a technical assessment runs here

  1. 1

    Set the task

    A code editor question, a written explanation, or both, in the same assessment.

  2. 2

    The candidate writes in the browser

    Code questions need the Pro plan. Nothing to install on their side.

  3. 3

    The code runs, then it is read

    It runs against your test cases and you see the output. Then Assessly reads the code and scores it with the reasoning written out.

  4. 4

    Judge the approach with the result

    A candidate who explains a tradeoff can be scored for it, which a passing test alone does not capture.

Worth asking of any technical assessment tool

  • Does the tool execute the code, read it, or both, and which do you need?
  • How is a candidate scored when the approach is right and the syntax is not?
  • Can the same assessment ask why, not only what?
  • What signals does it collect about how the answer was produced?

Where Assessly stops

  • Code questions and execution need the Pro plan. On free you have 15 of the 18 types, and video and audio come with Starter.
  • The code library is small next to a dedicated technical platform, and there is no live pair-programming interview. Assessly is for the take-home step, not the whiteboard.

2 real questions

Taken from Algorithmic Reasoning Simulation, so you can weigh the wording yourself.

  1. 1.Short text

    The fourth function is: function countDown(n): while n > 0: print(n) n = n - 2 return n What value does countDown(5) return at the end?

  2. 2.Long text

    The fifth function is supposed to reverse a list in place: function reverse(list): n = length(list) for i from 0 to n - 1: temp = list[i] list[i] = list[n - 1 - i] list[n - 1 - i] = temp return list What does reverse([1, 2, 3, 4]) return? Explain why the result is wrong and write the fix.

Algorithmic Reasoning Simulation

Questions people ask us

Does Assessly run the candidate code?

Yes, on the Pro plan. It runs against the test cases you set and you see the output and whether it passed. Executions past the plan allowance are metered at the rate on the pricing page.

Then how is a code answer scored?

Twice over: the test cases say whether it works, and the AI review reads the code and scores it from 0 to 100 with the reasoning written out. An approach that is right but fails one edge case is still scored for the approach.

Which plan do code questions need?

Pro. On the free plan you have 15 of the 18 question types, and video and audio come with Starter.

Can the same assessment ask why, not only what?

Yes, and that is the usual reason to use it: a code question and a written explanation of the tradeoff can sit in the same assessment.

Is there anti-cheating signal on a technical test?

Assessly collects signals about how an answer was produced, including keystroke behaviour and analysis of whether text reads as generated. It is signal for a human to weigh, not a verdict.

Is it a fit for hiring senior engineers?

It fits when the judgement you want is about reasoning and communication as much as correctness. If you need a live pair-programming interview or a library of thousands of algorithm problems, a dedicated technical platform does that better, and worth knowing now.

This is our own site, so read it that way. What we say about the other tool is read from its public pages on the date shown beside the table, with the sources linked, and we name where it beats us before we name where we win. Every number about Assessly is read from the product rather than written by hand. If we got something about them wrong, write to us and we will fix it.

Try it on one opening before you decide

Take a ready-made template, send the link to three candidates and read what comes back. 20 submissions a month cost nothing and need no card.