# Tesseract vs Luckysleep

The clearest difference is price: Tesseract at Free against Luckysleep's $0.99. Luckysleep's advantage is in-app purchases (none vs 3) and iOS requirement (15.2 vs 26.0). On ads and device support there is nothing between them.

Tesseract is free to download; Luckysleep costs $0.99 up front. Tesseract sells 3 in-app purchases, starting at $1.99 per month. Luckysleep asks for nothing beyond the download.

## The numbers

| Metric | Tesseract | Luckysleep |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.5 (110 ratings)](https://appshunter.io/ios/app/tesseract-interstellar-diary/id6599853294/reviews)** | — |
| Number of ratings | **110** | — |
| Positive reviews | 78.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 220 MB |
| Requires iOS | 26.0 | **15.2** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Goateraction](https://appshunter.io/developer/1647805479) | [Shenzhen Julab Cultural Technology Co., Ltd.](https://appshunter.io/developer/568373854) |

## What reviewers say

### Tesseract

[App page](https://appshunter.io/ios/app/tesseract-interstellar-diary/id6599853294)

This app transforms your daily entries into a visually rich photo diary with animated themes like starlight and black holes. Add photos, organize with custom folders, and secure your memories with biometric locks. It offers journaling prompts and templates to inspire your writing.

**Highlights:** Animated visual themes, Photo attachments, Biometric entry lock, Journaling prompts, Custom folders, On This Day widget, Markdown import/export

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $4.99 | per year |
| Lifetime | $12.99 | one-time |

**What reviewers like**

- 🎨 Stunning, gorgeous UI/UX design
- ✨ Smooth, silky animations and interactions
- 📱 Lightweight app (only 6MB)
- 💭 Intuitive and simple to use
- 🎯 Focused, single-purpose functionality

**What reviewers complain about**

- 💰 Aggressive monetization strategy
- 🔒 Data loss issues after updates
- 🐛 Edit button crashes the app
- 📸 Photos disappear when editing entries
- 🔄 Sync issues between devices

**Reported bugs**

- Data deletion after app updates
- Journal entries disappearing after switching apps
- Edit button causing app crashes
- Photos disappearing when adding new ones
- Photos disappearing after editing entries

**Requested features**

- Customizable theme colors and backgrounds
- Additional font options (especially for Chinese)
- PDF export functionality
- iCloud sync support
- Auto-save functionality


### Luckysleep

[App page](https://appshunter.io/ios/app/luckysleep/id6768966954)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tesseract free?

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

### Is Luckysleep free?

Luckysleep costs $0.99, with no in-app purchases.

### Do Tesseract or Luckysleep have ads?

Neither Tesseract nor Luckysleep 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.*