# Thetis Tools vs Notebox

The clearest difference is in-app purchases: Thetis Tools at none against Notebox's 2. Thetis Tools also leads on iOS requirement (14.0 vs 17.0). Notebox's advantage is update cadence (every 2 days vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. Notebox sells 2 in-app purchases, starting at $1.49 per month. Thetis Tools asks for nothing beyond the download.

Thetis Tools ships an update every 7 months, Notebox every 2 days. The most recent releases landed on September 10, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Thetis Tools | Notebox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/notebox-encrypted/id1536532586/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 days** |
| Monetization | — | Freemium |
| Size | 50 MB | 49 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Thetis srl](https://appshunter.io/developer/397584184) | [Guap Inc.](https://appshunter.io/developer/1439069409) |

## What reviewers say

### Thetis Tools

[App page](https://appshunter.io/ios/app/thetis-tools/id1460268980)

**Features:** macOS Compatibility

**In-app purchases:** none


### Notebox

[App page](https://appshunter.io/ios/app/notebox-encrypted/id1536532586)

This app offers a secure, block-based editor with Markdown support for local note-taking. For cross-device synchronization and real-time updates, a subscription unlocks cloud features with zero-knowledge encryption.

**Highlights:** Zero-knowledge encryption, Block-based editor, Markdown support, Local-only mode, Cross-device sync, Real-time updates

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Cloud Subscription | $1.49 | per month |
| Yearly Cloud Subscription | $14.99 | per year |


## Frequently asked questions

### Is Thetis Tools free?

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

### Is Notebox free?

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

### Do Thetis Tools or Notebox have ads?

Neither Thetis Tools nor Notebox shows ads.

### Which is updated more often, Thetis Tools or Notebox?

Thetis Tools ships an update every 7 months, and Notebox every 2 days. Most recently, Thetis Tools was updated on September 10, 2026 and Notebox on June 2, 2026.

---

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