# PDF Scanner Editor Translator vs Astronomy Logbook

The clearest difference is in-app purchases: Astronomy Logbook at none against PDF Scanner Editor Translator's 2. Astronomy Logbook also leads on ads (none vs shown) and update cadence (weekly vs every 5 weeks). PDF Scanner Editor Translator's advantage is iOS requirement (13.0 vs 16.6). On price and device support there is nothing between them.

Both are free to download. PDF Scanner Editor Translator sells 2 in-app purchases, starting at $5.49 per 7 days. Astronomy Logbook asks for nothing beyond the download.

PDF Scanner Editor Translator ships an update every 5 weeks, Astronomy Logbook weekly. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | PDF Scanner Editor Translator | Astronomy Logbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (4 ratings)](https://appshunter.io/ios/app/astronomy-logbook/id1552320892/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | — | Free |
| Size | 34 MB | 62 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Aquila Holding srl](https://appshunter.io/developer/1792819795) | [Krishna Vedala](https://appshunter.io/developer/1546688939) |

## What reviewers say

### PDF Scanner Editor Translator

[App page](https://appshunter.io/ios/app/pdf-scanner-editor-translator/id1551760373)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Master with GPT | $5.49 | per 7 days |
| PDF Master with GPT | $5.99 | per 7 days |


### Astronomy Logbook

[App page](https://appshunter.io/ios/app/astronomy-logbook/id1552320892)

Record astronomical observations with this red-light themed digital logbook. Securely store your notes in the cloud for access anywhere via web or app.

**Highlights:** Red-light themed interface, Digital observation logging, Cloud storage, Web interface access, Secure and private data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Scanner Editor Translator free?

PDF Scanner Editor Translator is free to download, with in-app purchases available.

### Is Astronomy Logbook free?

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

### Do PDF Scanner Editor Translator or Astronomy Logbook have ads?

PDF Scanner Editor Translator shows ads; Astronomy Logbook does not.

### Which is updated more often, PDF Scanner Editor Translator or Astronomy Logbook?

PDF Scanner Editor Translator ships an update every 5 weeks, and Astronomy Logbook weekly. Most recently, PDF Scanner Editor Translator was updated on October 25, 2026 and Astronomy Logbook on October 21, 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.*