# Aviation Docs vs CFR 23

The clearest difference is in-app purchases: Aviation Docs at none against CFR 23's 3. Aviation Docs also leads on update cadence (every 2 months vs every 12 months). CFR 23's advantage is iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. CFR 23 sells 3 one-off in-app purchases. Aviation Docs asks for nothing beyond the download.

Aviation Docs ships an update every 2 months, CFR 23 every 12 months. The most recent releases landed on November 10, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Aviation Docs | CFR 23 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (72 ratings)](https://appshunter.io/ios/app/aviation-docs/id385174603/reviews)** | — |
| Number of ratings | **72** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 12 months |
| Monetization | Free | — |
| Size | 123 MB | 62 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [On-Board Data Systems](https://appshunter.io/developer/663920824) | [Lyker Labs LLC](https://appshunter.io/developer/891194494) |

## What reviewers say

### Aviation Docs

[App page](https://appshunter.io/ios/app/aviation-docs/id385174603)

Access fleet, aircraft, and aircraft-type specific document libraries on your iPad from anywhere. Designed for flight operations, it centralizes all your aviation documents in one place.

**Highlights:** Fleet document access, Aircraft-specific libraries, Aircraft-type document libraries, Global accessibility, Double document view (Landscape), Nav/Document view (Landscape)

**Features:** Vision Pro support

**In-app purchases:** none


### CFR 23

[App page](https://appshunter.io/ios/app/cfr-23-highways/id1557791850)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CFR Title 23 | $4.99 | one-time |
| CFR Title 23 | $12.99 | one-time |
| CFR Title 23 | $44.99 | one-time |


## Frequently asked questions

### Is Aviation Docs free?

Aviation Docs is free to download, with no in-app purchases.

### Is CFR 23 free?

CFR 23 is free to download, with in-app purchases available.

### Do Aviation Docs or CFR 23 have ads?

Neither Aviation Docs nor CFR 23 shows ads.

### Which is updated more often, Aviation Docs or CFR 23?

Aviation Docs ships an update every 2 months, and CFR 23 every 12 months. Most recently, Aviation Docs was updated on November 10, 2026 and CFR 23 on November 7, 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.*