# TTP Log Book App vs Q

The clearest difference is update cadence: Q at every 3 weeks against TTP Log Book App's every 2 months. TTP Log Book App's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TTP Log Book App ships an update every 2 months, Q every 3 weeks. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | TTP Log Book App | Q |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 31 MB | 54 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Corrodere limited](https://appshunter.io/developer/1581980770) | [Goldschmidt Holding GmbH](https://appshunter.io/developer/1518195595) |

## What reviewers say

### TTP Log Book App

[App page](https://appshunter.io/ios/app/ttp-log-book-app/id1581983993)

**Features:** macOS Compatibility

**In-app purchases:** none


### Q

[App page](https://appshunter.io/ios/app/q-weld/id1624485907)

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

**In-app purchases:** none


## Frequently asked questions

### Is TTP Log Book App free?

TTP Log Book App is free to download, with no in-app purchases.

### Is Q free?

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

### Do TTP Log Book App or Q have ads?

Neither TTP Log Book App nor Q shows ads.

### Which is updated more often, TTP Log Book App or Q?

TTP Log Book App ships an update every 2 months, and Q every 3 weeks. Most recently, TTP Log Book App was updated on October 25, 2026 and Q on October 27, 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.*