# iSetSquare vs pilot logbook

The clearest difference is price: pilot logbook at Free against iSetSquare's $1.99. pilot logbook also leads on update cadence (weekly vs every 17 months). iSetSquare's advantage is in-app purchases (none vs 3) and iOS requirement (9.0 vs 15.0). On ads and device support there is nothing between them.

pilot logbook is free to download; iSetSquare costs $1.99 up front. pilot logbook sells 3 in-app purchases, starting at $3.99 per month. iSetSquare asks for nothing beyond the download.

iSetSquare ships an update every 17 months, pilot logbook weekly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iSetSquare | pilot logbook |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.2 (6 ratings)](https://appshunter.io/ios/app/isetsquare/id382820922/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 86.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Weekly** |
| Monetization | Paid | — |
| Size | 13 MB | 127 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Peter Breitling](https://appshunter.io/developer/286215120) | [CloudLog](https://appshunter.io/developer/1662893913) |

## What reviewers say

### iSetSquare

[App page](https://appshunter.io/ios/app/isetsquare/id382820922)

This utility app functions as a digital goniometer, utilizing your device's gyroscope to measure angles and rotations. It offers multiple unit modes, calibration options, and a scrollable ruler for precise measurements.

**Highlights:** Measure relative angles and rotation, 5 Unit modes, Background or foreground display rotation, Gyrometer fine calibration, Motion sensitive or manual lock mode, Scrollable ruler (inch or cm)

**Features:** macOS Compatibility

**In-app purchases:** none


### pilot logbook

[App page](https://appshunter.io/ios/app/pilot-logbook-cloudlogaero/id6742660535)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ESSENTIAL | $3.99 | per month |
| welcome special one time offer | $4.99 | per month |
| YOUR ALL-ACCESS PASS | $6.99 | per month |


## Frequently asked questions

### Is iSetSquare free?

iSetSquare costs $1.99, with no in-app purchases.

### Is pilot logbook free?

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

### Do iSetSquare or pilot logbook have ads?

Neither iSetSquare nor pilot logbook shows ads.

### Which is updated more often, iSetSquare or pilot logbook?

iSetSquare ships an update every 17 months, and pilot logbook weekly. Most recently, iSetSquare was updated on October 21, 2026 and pilot logbook on October 24, 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.*