# Letter vs Robbe Optic

The clearest difference is in-app purchases: Robbe Optic at none against Letter's 4. Robbe Optic also leads on iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Letter sells 4 in-app purchases, starting at $0.99 per 7 days. Robbe Optic asks for nothing beyond the download.

## The numbers

| Metric | Letter | Robbe Optic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (881 ratings)](https://appshunter.io/ios/app/letter-just-write-letters/id498506154/reviews)** | — |
| Number of ratings | **881** | — |
| Positive reviews | 49.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 63 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ubelacker Solutions GmbH](https://appshunter.io/developer/391297165) | [Fideliz](https://appshunter.io/developer/1756794607) |

## What reviewers say

### Letter

[App page](https://appshunter.io/ios/app/letter-just-write-letters/id498506154)

Easily create, format, and print professional-looking letters. Enhance your writing with an AI assistant, add personalized signatures, and utilize diverse templates. Sync your work across devices and share digitally or as PDFs.

**Highlights:** Professional letter formatting, Convenient in-app printing, Digital sharing and PDF export, iCloud device synchronization, AI-powered letter assistant, Personalized signatures, Contact address integration

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Monthly | $2.99 | per month |
| Yearly | $14.99 | per year |
| One-time | $69.99 | one-time |

**What reviewers like**

- 👍 Easy to use and navigate
- ✍️ Effective letter writing tool
- 🎨 Professional letter formatting
- 📱 Works with contact lists
- 🖨️ Printer integration capability

**What reviewers complain about**

- 🐛 Frequent app crashes
- 💾 Letters disappearing unexpectedly
- ❌ App won't open or load
- 🔧 Poor technical stability
- 📋 Limited formatting options

**Reported bugs**

- App crashes on startup or during use
- Letters disappear mid-composition
- App fails to open or load
- Blank screen appearing when reopening saved letters
- App freezes during operation

**Requested features**

- More sample letter templates (complaint, traffic ticket, name change)
- Font size adjustment options
- Export to multiple formats (.doc, .pdf)
- Word document import/export capability
- Additional layout customization options


### Robbe Optic

[App page](https://appshunter.io/ios/app/robbe-optic/id6776654901)

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

**In-app purchases:** none


## Frequently asked questions

### Is Letter free?

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

### Is Robbe Optic free?

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

### Do Letter or Robbe Optic have ads?

Neither Letter nor Robbe Optic shows ads.

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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.*