# BJU Safe vs KnowTAM

The clearest difference is in-app purchases: BJU Safe at none against KnowTAM's 8. KnowTAM's advantage is update cadence (every 2 months vs every 10 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. KnowTAM sells 8 one-off in-app purchases. BJU Safe asks for nothing beyond the download.

BJU Safe ships an update every 10 months, KnowTAM every 2 months. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | BJU Safe | KnowTAM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/knowtam/id6775458780/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 75 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bob Jones University](https://appshunter.io/developer/727186934) | [Winston Tripp Aviation LLC](https://appshunter.io/developer/6775458782) |

## What reviewers say

### BJU Safe

[App page](https://appshunter.io/ios/app/bju-safe/id6740661743)

**In-app purchases:** none


### KnowTAM

[App page](https://appshunter.io/ios/app/knowtam/id6775458780)

Prepare for FAA knowledge tests and checkrides with flashcards, quizzes, and practice exams. Features detailed explanations, regulation references, and spaced repetition for effective learning. Study offline anytime, anywhere.

**Highlights:** Flashcards with CFI explanations, Practice exams mirroring real tests, Offline study functionality, Spaced repetition learning, Oral exam preparation, Study plan tailored to test date

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnowTAM CAX Checkride | $9.99 | one-time |
| KnowTAM Instrument Checkride | $9.99 | one-time |
| KnowTAM Private Checkride | $9.99 | one-time |
| KnowTAM Multi-Engine | $14.99 | one-time |
| KnowTAM Commercial (CAX) | $19.99 | one-time |
| KnowTAM Instrument (IRA) | $19.99 | one-time |
| KnowTAM Private (PAR) - Full | $19.99 | one-time |
| All-Access Bundle | $59.99 | one-time |


## Frequently asked questions

### Is BJU Safe free?

BJU Safe is free to download, with no in-app purchases.

### Is KnowTAM free?

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

### Do BJU Safe or KnowTAM have ads?

Neither BJU Safe nor KnowTAM shows ads.

### Which is updated more often, BJU Safe or KnowTAM?

BJU Safe ships an update every 10 months, and KnowTAM every 2 months. Most recently, BJU Safe was updated on October 10, 2026 and KnowTAM on October 17, 2026.

---

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