# CheckPrep vs KnowTAM

The clearest difference is iOS requirement: KnowTAM at 16.4 against CheckPrep's 26.2. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. CheckPrep sells 8 one-off in-app purchases and KnowTAM sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for CheckPrep against 5.0 for KnowTAM. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

CheckPrep ships an update every 4 days, KnowTAM every 5 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | CheckPrep | KnowTAM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/checkprep/id6760047738/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/knowtam-faa-pilot-test-prep/id6775458780/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 94 MB |
| Requires iOS | 26.2 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robert Rousey](https://appshunter.io/developer/1882505671) | [Winston Tripp Aviation LLC](https://appshunter.io/developer/6775458782) |

## What reviewers say

### CheckPrep

[App page](https://appshunter.io/ios/app/checkprep/id6760047738)

Prepare for your pilot checkride oral exams with this app. It's structured around the FAA Airman Certification Standards (ACS) and includes searchable regulations, adaptive quizzes, and real-world scenario trainers. Track your progress and know when you're ready.

**Highlights:** FAA ACS structured study, Searchable FAR, AIM, and FAA documents, Offline study and bookmarking, Adaptive flashcards and quizzes, METAR, TAF, and PIREP interpretation, ATC clearance trainers, Progress tracking (0-100%)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cessna 172SP Content | $4.99 | one-time |
| Cirrus SR20 G7+ Content | $4.99 | one-time |
| Diamond DA42 NG Content | $4.99 | one-time |
| Cirrus SR22 G6 Content | $4.99 | one-time |
| Commercial Multi Add-On Package | $19.99 | one-time |
| Commercial Package | $19.99 | one-time |
| Instrument Package | $19.99 | one-time |
| Private Pilot Package | $19.99 | one-time |


### KnowTAM

[App page](https://appshunter.io/ios/app/knowtam-faa-pilot-test-prep/id6775458780)

Prepare for FAA written and checkride oral exams with over 1,800 flashcards, quizzes, and practice exams. Features real FAA charts, timed practice tests, and a flight computer. Offers study plans and progress sharing with instructors.

**Highlights:** 1,800+ flashcards and quizzes, Practice exams with FAA timing, Oral-exam sets, Real FAA charts and figures, Study plan with spaced repetition, Progress sharing with instructors, Offline study mode

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnowTAM CAX Checkride | $14.99 | one-time |
| KnowTAM Instrument Checkride | $14.99 | one-time |
| KnowTAM Private Checkride | $14.99 | one-time |
| KnowTAM Multi-Engine | $19.99 | one-time |
| KnowTAM Commercial (CAX) | $39.99 | one-time |
| KnowTAM Instrument (IRA) | $39.99 | one-time |
| KnowTAM Private (PAR) - Full | $39.99 | one-time |
| All-Access Bundle | $99.99 | one-time |


## Frequently asked questions

### Is CheckPrep free?

CheckPrep is free to download, with in-app purchases available.

### Is KnowTAM free?

KnowTAM is free to download, with in-app purchases available.

### Which has better reviews, CheckPrep or KnowTAM?

CheckPrep and KnowTAM are both rated 5.0 out of 5 on the App Store, from 4 and 3 ratings respectively.

### Do CheckPrep or KnowTAM have ads?

Neither CheckPrep nor KnowTAM shows ads.

### Which is updated more often, CheckPrep or KnowTAM?

CheckPrep ships an update every 4 days, and KnowTAM every 5 days. Most recently, CheckPrep was updated on October 31, 2026 and KnowTAM on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*