# Diamond ECL vs pilot logbook

The clearest difference is price: pilot logbook at Free against Diamond ECL's $1.99. pilot logbook also leads on update cadence (every 3 days vs every 2 months) and iOS requirement (14.0 vs 17). Diamond ECL's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

pilot logbook is free to download; Diamond ECL costs $1.99 up front. pilot logbook sells 2 in-app purchases, starting at $4.99 per month. Diamond ECL asks for nothing beyond the download.

Diamond ECL ships an update every 2 months, pilot logbook every 3 days. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Diamond ECL | pilot logbook |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 1 MB | 136 MB |
| Requires iOS | 17 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gadir Mamedov](https://appshunter.io/developer/1628780398) | [CloudLog](https://appshunter.io/developer/1662893913) |

## What reviewers say

### Diamond ECL

[App page](https://appshunter.io/ios/app/diamond-ecl/id1628780396)

**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 (2)**

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


## Frequently asked questions

### Is Diamond ECL free?

Diamond ECL costs $1.99, with no in-app purchases.

### Is pilot logbook free?

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

### Do Diamond ECL or pilot logbook have ads?

pilot logbook shows ads; Diamond ECL does not.

### Which is updated more often, Diamond ECL or pilot logbook?

Diamond ECL ships an update every 2 months, and pilot logbook every 3 days. Most recently, Diamond ECL was updated on September 9, 2026 and pilot logbook on September 10, 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.*