# Captain Logbook vs AviCalc

The clearest difference is in-app purchases: AviCalc at none against Captain Logbook's 2. AviCalc also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Captain Logbook sells 2 in-app purchases, starting at $0.99 per month. AviCalc asks for nothing beyond the download.

Captain Logbook ships an update every 2 months, AviCalc every 3 weeks. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Captain Logbook | AviCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/captain-logbook/id1494540813/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Freemium | — |
| Size | 35 MB | 9 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chung-Lun Chiang](https://appshunter.io/developer/597568627) | [Aldo Mendes Martins](https://appshunter.io/developer/377344895) |

## What reviewers say

### Captain Logbook

[App page](https://appshunter.io/ios/app/captain-logbook/id1494540813)

Log your flights with detailed information including flight numbers, times, and approaches. The app offers intelligent suggestions, cloud syncing across devices, and export options in various formats. A free version is available for up to 100 flights.

**Highlights:** Log flights with detailed data, Intelligent suggestions and custom fields, Cloud sync across iPhone and iPad, Export to PDF (EASA, Jeppesen) and CSV, Dark Mode and Sign In with Apple integration, Local data backup

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access (monthly) | $0.99 | per month |
| Unlimited Access (Annually) | $7.99 | per year |


### AviCalc

[App page](https://appshunter.io/ios/app/avicalc/id6474237308)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Captain Logbook free?

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

### Is AviCalc free?

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

### Do Captain Logbook or AviCalc have ads?

Neither Captain Logbook nor AviCalc shows ads.

### Which is updated more often, Captain Logbook or AviCalc?

Captain Logbook ships an update every 2 months, and AviCalc every 3 weeks. Most recently, Captain Logbook was updated on October 10, 2026 and AviCalc on October 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.*