Coderbyte is best known for developer assessments, and it is good at them: it runs code in a real editor, ships a large question library and plugs into the big ATS platforms. TunnelQuiz is narrower. It is a proctored test platform for screening any role, priced per candidate, with screen and browser monitoring on every plan. If you hire engineers at volume, Coderbyte is the stronger coding tool. If you screen sales, support, operations or campus candidates and want a Coderbyte alternative that shows who is really sitting the test, read on.
Coderbyte's annual Pro plan includes its cheating detection, but webcam proctoring sits in the Premium Analytics & Proctoring add-on, listed at $1,299 a year on top of the $1,799 subscription. Its pay-as-you-go invites include it. TunnelQuiz adds webcam snapshots from the Essential plan, and captures the candidate's whole screen every minute on every plan, Free included.
Coderbyte prices in US dollars: $99 a month for 20 invites, $500 for a pack of 50 invites that lapse after a year, or $1,799 a year for Pro. TunnelQuiz charges one credit per candidate sitting, with plans that start free. A team that screens a few hundred people a quarter knows what each test costs before it sends the first invite.
Coderbyte offers a 14-day trial. TunnelQuiz has a free plan with 50 credits every month, for as long as you want it, so you can run a real hiring round before you decide whether to pay.
Every row below is a capability one or both platforms publish. A dash means we found no public statement that the platform offers it.
| Feature | TunnelQuiz | Coderbyte |
|---|---|---|
| Proctoring and test integrity11 | ||
| Tab and window switching | Yes. Logged with how long the candidate was away, every plan | Yes. Flags leaving the editor for a lengthy period |
| Copy and paste | Yes. Blocked and logged | Yes. Detected and logged |
| Captures of the candidate's screen | Yes. Whole screen every 60 seconds, every plan | Yes. Screen recording and screen images, per Coderbyte's FAQ and help center |
| Webcam monitoring | Yes. Snapshots every 60 seconds, Essential and up; multiple-face flag on Pro | Partly, with conditions. Images of flagged moments; a $1,299/yr add-on on Pro, included with pay-as-you-go |
| Second display detection | Yes. In Chrome and Edge, every plan | Partly, with conditions. Webcam proctoring flags second screens and other devices, with the add-on |
| AI-assistant browser extensions | Yes. Known AI extensions flagged, Essential and up | Yes. Flags illicit browser extensions |
| Plagiarism and ChatGPT detection in code answers | No. | Yes. |
| Fullscreen enforcement | Yes. On by default | Not stated. Not listed in Coderbyte's help center |
| Identity check before the test | Partly, with conditions. Email one-time code on every plan; SMS code and check-in photo from Essential; no face or ID matching | Yes. Identity verification listed in the help center |
| Location check | Partly, with conditions. IP address and device logged, no location matching | Yes. Compares location with where the candidate should be |
| Live view of candidates mid-test | Yes. Live monitoring from Essential, Live Follow on Pro | Not stated. No live view for assessments in Coderbyte's help center |
| Questions and tests7 | ||
| Multiple-choice questions | Yes. | Yes. |
| Written answers | Yes. Marked by you, or AI-drafted on Pro | Yes. Short answer |
| Coding questions | Partly, with conditions. 19 languages, AI-graded on Pro; code is not executed | Yes. Runs code in a built-in IDE |
| Test library | No. Write your own, import a CSV, or generate with AI on Pro | Yes. 10,000+ questions across 500+ skills |
| Video responses | No. | Yes. |
| AI chat interviews | Yes. Pro plan | Yes. With AI or human interviewers |
| Question shuffling and random pools | Yes. | Yes. Question randomization |
| Team and integrations4 | ||
| ATS integrations | No. | Yes. iCIMS, Workday, Greenhouse, Lever and others, via a $1,499/yr add-on on Pro |
| Users | Partly, with conditions. 1, 5 or 20 seats by plan; unlimited on Business | Yes. Unlimited admins on Pro |
| Single sign-on | Partly, with conditions. Google and Microsoft sign-in | Yes. SSO and SCIM, $1,499/yr add-on |
| Shareable report links | Yes. Revocable links, Essential and up | Yes. Public report links by default; can be limited to admins |
| Pricing and access4 | ||
| Way to start without paying | Yes. Free plan, 50 credits every month | Partly, with conditions. 14-day free trial |
| Entry price | $34/mo billed yearly, 150 credits | $99/mo for 20 invites, $500 for 50 invites, or Pro at $1,799/yr |
| Currency | USD, no tax added | USD |
| Pricing model | Flat plans: Free $0, Essential $34/mo and Pro $87/mo, both billed yearly (12% off monthly), Business quoted - 50/150/250 credits a month; unproctored tests free on paid plans, AI generation, grading and chat interviews metered separately in AI credits; in India, ₹1,319 and ₹3,519 plus GST | A monthly invite plan, prepaid invite packs, or a flat annual Pro plan with priced add-ons |
We found no live view for assessments in Coderbyte's help center; you review what happened afterwards. TunnelQuiz's live monitoring, from the Essential plan, lists every candidate with their progress and flags as they come in.
A live view during the test
We found no live view for assessments in its help center
From Essential: every candidate, with progress and flags
One credit per candidate sitting, whatever proctoring the plan turns on. A proctored campus drive of 400 candidates costs 400 credits, and the plan page tells you what those cost.
How the cost is counted
$99 a month for 20 invites, $500 for 50, or Pro at $1,799 a year
A proctored drive of 400 candidates costs 400 credits
A lot of screening is aptitude, language, domain knowledge and judgment, asked as MCQs and short written answers. That is what TunnelQuiz is built around, with negative marking, per-question timers and shuffled question pools.
What TunnelQuiz is built around
Aptitude, language, domain knowledge and judgment
Negative marking, per-question timers and shuffled question pools
As of October 2026, Coderbyte lists a monthly plan at $99 for 20 invites ($20 for each extra invite), a pay-as-you-go pack at $500 for 50 invites that expire after 365 days, and the Pro plan at $1,799 a year with unlimited candidates and admins. On Pro, add-ons for proctoring, ATS integrations, SSO and branding cost $1,299 to $1,499 a year each. Prices are in US dollars; check Coderbyte's site for current figures.
Yes. Its help center describes webcam proctoring that flags no one visible, multiple people, external devices and frequent looking away, with captured images in the report. It comes with the Premium Analytics & Proctoring add-on, the Bundle subscription, or pay-as-you-go invites.
For a first filter, yes. For deep technical assessment, Coderbyte is the better tool. TunnelQuiz supports coding questions in 19 languages on the Pro plan, but answers are graded by AI rather than run against test cases, and there is no IDE or project-based task. A sensible split is TunnelQuiz for aptitude and fundamentals, then a coding tool for the shortlist.
It depends on volume. Coderbyte's monthly plan is $99 for 20 invites, its pay-as-you-go pack works out to $10 an invite, and Pro is a flat $1,799 a year however many candidates you test. TunnelQuiz charges one credit per candidate sitting: Essential is $34 a month billed yearly for 150 credits, and the Free plan covers 50 a month. For a team testing a few hundred non-developer candidates a year, TunnelQuiz will usually cost less. For a team running thousands of coding assessments, Coderbyte's flat Pro plan can come out ahead.
No. From Essential, results can be shared through revocable report links and exported to CSV, and Pro adds PDF, full CSV and bulk exports. Coderbyte has native integrations with eleven ATS platforms, sold as an add-on on its Pro plan.
No, on either platform. TunnelQuiz runs in the browser and asks the candidate to share their screen and, on Essential and up, their camera. Proctored tests need Chrome or Edge (or another Chromium-based browser).
Start on the free plan with 50 credits every month. Webcam snapshots come with Essential, and there is no proctoring add-on to pay for.