# TTP Log Book App vs Protecta Project Manager

The clearest difference is iOS requirement: TTP Log Book App at 12.0 against Protecta Project Manager's 16.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | TTP Log Book App | Protecta Project Manager |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 31 MB | 48 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Corrodere limited](https://appshunter.io/developer/1581980770) | [Polyseam Limited](https://appshunter.io/developer/1570632542) |

## 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


### Protecta Project Manager

[App page](https://appshunter.io/ios/app/protecta-project-manager/id6749899504)

**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 Protecta Project Manager free?

Protecta Project Manager is free to download, with no in-app purchases.

### Do TTP Log Book App or Protecta Project Manager have ads?

Neither TTP Log Book App nor Protecta Project Manager shows ads.

### Which is updated more often, TTP Log Book App or Protecta Project Manager?

TTP Log Book App ships an update every 2 months, and Protecta Project Manager every 2 months. Most recently, TTP Log Book App was updated on September 18, 2026 and Protecta Project Manager on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*