# Styll Optical vs Diary

The clearest difference is ads: Styll Optical at none against Diary's shown. Diary's advantage is update cadence (every 5 months vs every 23 months) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

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

Styll Optical ships an update every 23 months, Diary every 5 months. The most recent releases landed on September 5, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Styll Optical | Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (1.7K ratings)](https://appshunter.io/ios/app/diary-journal-with-password/id1259894631/reviews)** |
| Number of ratings | — | **1.7K** |
| Positive reviews | — | 81.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 23 months | **Every 5 months** |
| Monetization | — | Free with in-app purchases |
| Size | 435 MB | 28 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Guilherme Borba](https://appshunter.io/developer/1078978997) | [Aurel Criste](https://appshunter.io/developer/1190603157) |

## What reviewers say

### Styll Optical

[App page](https://appshunter.io/ios/app/styll-optical/id1078978998)

**Features:** macOS Compatibility

**In-app purchases:** none


### Diary

[App page](https://appshunter.io/ios/app/diary-journal-with-password/id1259894631)

This app provides a secure and beautiful space to record your thoughts, plans, and life moments. Protect your entries with a password and enjoy a customizable interface with features like image support and PDF export.

**Highlights:** Password protection with PIN, Add/edit/remove images, Search functionality, Export entries to PDF, Customizable color and font styles, Reminders, Auto-lock for privacy

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Awesome app
- 🔒 Password protected
- 👍 Customizable font, color, and theme
- 💡 Ability to add photos
- 💡 Ability to set reminders

**What reviewers complain about**

- 🐛 Entries disappear without warning
- 🐛 Password issues, unable to reset
- 🐛 Scrolling/jumping text when writing longer entries
- 🔋 Excessive ads
- 🐛 Unable to recover deleted entries

**Reported bugs**

- Password not working consistently
- Entries disappearing or not saving properly
- Scrolling/jumping text when writing longer entries
- Inability to recover deleted entries

**Requested features**

- Backup and sync across devices
- More customization options (fonts, colors, backgrounds)
- Ability to export entries
- Night mode/dark theme
- Voice-to-text entry


## Frequently asked questions

### Is Styll Optical free?

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

### Is Diary free?

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

### Do Styll Optical or Diary have ads?

Diary shows ads; Styll Optical does not.

### Which is updated more often, Styll Optical or Diary?

Styll Optical ships an update every 23 months, and Diary every 5 months. Most recently, Styll Optical was updated on September 5, 2026 and Diary on September 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.*