TestNav vs Metabolism Sim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TestNav
This application provides a secure and reliable platform for delivering educational tests online. It ensures test items are presented consistently across devices.
- Secure test delivery
- Reliable online platform
- Consistent test item presentation
- iOS device compatibility
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TestNav is Pearson's online test delivery platform. It enables test items to be delivered online securely and reliably in a consistent manner. The TestNav for iOS app allows TestNav to run on iOS devices.
Metabolism Sim
This application simulates human metabolism, designed to complement a science curriculum. It requires a valid Amplify login and license provided by a school to function.
- Metabolism simulation
- Science curriculum integration
- Requires Amplify login
- School-provided license needed
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A simulation of metabolism, for use with Amplify's science curriculum. ************************************************************** Metabolism Sim WILL ONLY WORK IF YOU HAVE AN AMPLIFY LOGIN AND LICENSE PROVIDED BY A SCHOOL. You can download the app without a login, but you will not be able to use the app without a valid Amplify login. **************************************************************
Verdict
The clearest difference is rating: Metabolism Sim at 3.2 against TestNav's 1.6. Metabolism Sim also leads on review sentiment (57% vs 24%) and update cadence (every 3 months vs every 8 months). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Metabolism Sim holds the better App Store score, 3.2 against 1.6. Both are backed by a comparable volume of ratings — 104 and 71 respectively. Written reviews point the same way: 24% of TestNav's written reviews are positive against 57% of Metabolism Sim's.
TestNav ships an update every 8 months, Metabolism Sim every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | TestNav | Metabolism Sim |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (104 ratings) | 3.2 (71 ratings) — better |
| Positive reviews | 23.6% of reviews | 57.1% of reviews — better |
| Number of ratings | 104 — better | 71 |
| Update frequency | Every 8 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPad |
| Requires iOS | 13.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 132 MB |
| Age rating | 4+ | 4+ |
| Developer | Pearson | Amplify Education, Inc. |
Customer experience
TestNav
Metabolism Sim
Bugs and requests
TestNav
Reported bugs
6 issues- Open response boxes never work properly
- Drag and drop not working
- Permission errors for speech, mic, etc.
- App crashes all the time
- App doesn't work
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- App needs update but cannot update
Requested features
10 requests- Way to lower brightness
- Actual Dark Mode
- Allow access to Accessibility Shortcuts menu during testing
- Enable/disable inverted colors during testing
- Enable zoom during testing
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- Enable VoiceOver during testing
- Add dancing GIFs of Nick Young
- Add mini games with golf balls and levels
- Add Flappy golf extreme
- Add cross map tomahawks
Metabolism Sim
Not enough reviews yet to summarise bugs or requests.
In-app purchases
TestNav
No in-app purchases
Metabolism Sim
No in-app purchases
Questions
Is TestNav free?
Is Metabolism Sim free?
Which has better reviews, TestNav or Metabolism Sim?
Do TestNav or Metabolism Sim have ads?
Which is updated more often, TestNav or Metabolism Sim?
Other comparisons
