# Tech Logbook By DCR vs Aircraft Engineer Toolkit

The clearest difference is in-app purchases: Aircraft Engineer Toolkit at none against Tech Logbook By DCR's 1. Tech Logbook By DCR's advantage is iOS requirement (15.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Tech Logbook By DCR sells 1 in-app purchase, starting at $8.99 per year. Aircraft Engineer Toolkit asks for nothing beyond the download.

Tech Logbook By DCR ships an update monthly, Aircraft Engineer Toolkit every 3 weeks. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Tech Logbook By DCR | Aircraft Engineer Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 20 MB | 5 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CYRIL DEPECKER](https://appshunter.io/developer/1837250136) | [ABDULKADIR KURT](https://appshunter.io/developer/1896416537) |

## What reviewers say

### Tech Logbook By DCR

[App page](https://appshunter.io/ios/app/tech-logbook-by-dcr/id6752611583)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Yearly | $8.99 | per year |


### Aircraft Engineer Toolkit

[App page](https://appshunter.io/ios/app/aircraft-engineer-toolkit/id6778058385)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tech Logbook By DCR free?

Tech Logbook By DCR is free to download, with in-app purchases available.

### Is Aircraft Engineer Toolkit free?

Aircraft Engineer Toolkit is free to download, with no in-app purchases.

### Do Tech Logbook By DCR or Aircraft Engineer Toolkit have ads?

Neither Tech Logbook By DCR nor Aircraft Engineer Toolkit shows ads.

### Which is updated more often, Tech Logbook By DCR or Aircraft Engineer Toolkit?

Tech Logbook By DCR ships an update monthly, and Aircraft Engineer Toolkit every 3 weeks. Most recently, Tech Logbook By DCR was updated on October 12, 2026 and Aircraft Engineer Toolkit on October 8, 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.*