# Tesseract - Emotional Journal — Write in a Black Hole

> Immersive 3D emotional journaling app with voice dictation and AI prompts. (iPhone/iPad app by Goateraction.)

- Source: https://appshunter.io/ios/app/tesseract-emotional-journal/id6599853294 (this page in markdown: same URL + `.md`)
- Developer: [Goateraction](https://appshunter.io/developer/1647805479)
- Category: Lifestyle, Productivity
- Price: Free with in-app purchases
- Rating: 4.50/5 from 109 App Store ratings · 95 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 16 MB
- Languages: American English, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean, Malay and 10 more
- Released: 2024-09-01
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/tesseract-emotional-journal/id6599853294/reviews.md

## What is Tesseract?

Beyond the black hole, record your day in five dimensions.
Tesseract is a journaling app inspired by the film Interstellar. Keep your most meaningful moments inside an immersive 3D space, and return to them anytime.
Your journal is no longer just a date. It becomes a coordinate in a universe that's yours alone.

◆ A 5D tesseract space, memories on a bookshelf
Each entry lands on a 3D bookshelf, one volume at a time.
Turn through past and present like pages, and meet the person you were that day.

◆ Words and photos that come alive
Gentle animation brings your writing and photos to life.
Pick a mood and an entry type that match how you feel, and shape a page that's unmistakably yours.

◆ Write it or say it
On days when typing feels like too much, just speak.
Your voice turns into text instantly, so you can recall your day and finish an entry with ease.

◆ Privacy by design
Everything saves safely to your personal iCloud, with no account needed.
It syncs automatically across your devices, and only you can see what you write.

◆ Journaling Suggestions
Connected with Apple's Journaling Suggestions, Tesseract hands you a fresh prompt every day.
With ideas drawn from your photos and activity, you can start writing without wondering "what should I write about?"

Features
- Immersive 3D tesseract interface
- A range of moods and entry types
- Type or dictate your entries
- Unlimited photo storage
- AI-powered writing prompts
- Automatic iCloud sync
- Passcode lock
- Markdown import and export
- Multiple font options
- Multilingual support

Start your own journey through time in five dimensions, today.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Immersive 3D Tesseract interface
- Voice dictation journaling
- AI-powered journaling prompts
- Aesthetic writing with animations
- Secure iCloud sync
- Privacy-first design

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Annual | $4.99 | per year |
| Monthly | $1.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $12.99 | one-time |


## What do users think of Tesseract?

Overall sentiment: mixed

**Pros**

- 🎨 Stunning, gorgeous UI/UX design
- ✨ Smooth, silky animations and interactions
- 📱 Lightweight app (only 6MB)
- 💭 Intuitive and simple to use
- 🎯 Focused, single-purpose functionality
- 📝 Beautiful text and image composition
- ⚡ Responsive and stable performance
- 🎭 Visually inspiring for journaling

**Cons**

- 💰 Aggressive monetization strategy
- 🔒 Data loss issues after updates
- 🐛 Edit button crashes the app
- 📸 Photos disappear when editing entries
- 🔄 Sync issues between devices
- ⌨️ Bluetooth keyboard Enter key not working
- 📋 Text truncation with long content
- 🔐 Paywalling previously free features
- ⚙️ App performance degradation over time
- 🖼️ Sidebar covers entries by default

**Commonly 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
- iCloud sync not working between iPhone and iPad
- Bluetooth keyboard Enter key not functioning
- App freezing and lagging
- Text alignment issues in display view
- Paragraph spacing issues in display view
- Premium features not working after subscription
- App crashes on edit button press

**Most requested features**

- Customizable theme colors and backgrounds
- Additional font options (especially for Chinese)
- PDF export functionality
- iCloud sync support
- Auto-save functionality
- Photo position/placement control
- Galaxy map/note clustering visualization
- Auto-scroll features
- Pin/favorite entries functionality
- Search functionality
- Weather integration
- Image filters
- macOS version
- Customizable line spacing
- Live photo support
- Adjustable text size for long entries

## Recent user reviews (10 of 95)

All indexed reviews: https://appshunter.io/ios/app/tesseract-emotional-journal/id6599853294/reviews.md

### 5/5 — 앱 너무 잘쓰고 있어요!! 혹시

*2026-08-07*

혹시 태그 기능도 추가하실 계획이 있으실까요!? 있으면 넘 유용할거 같은데ㅠ

### 4/5 — 搞一个终身VIP吧

*2026-08-05*

最大的缺点就是没终身VIP这个选项

### 5/5 — pro

*2026-07-23*

88的永久会员去哪里了

**Developer response:** 你好！
感谢你使用 Tesseract！
我们已确认该问题，并将很快发布更新。请稍作等待，谢谢！😅

### 5/5 — Avis

*2026-07-23*

Avis

### 5/5 — Applications

*2026-07-06*

Je trouve cette application incroyable esthétique est j’aime beaucoup l’utiliser car sa fait longtemps que je l’es mais j’adore je recommande

### 5/5 — Интересно

*2026-07-04*

Весьма интересное приложение, стараешься абстрагироваться от внешнего мира иипогрузиться в воспоминария

### 4/5 — 优化性能

*2026-07-02*

打开背景，很卡，优化玻璃渲染区域

### 4/5 — 很喜欢 希望多加一些功能

*2026-06-30*

希望1.把之前的标题加粗加大改回来，新版本标题内容都是一个格式 没有区分度了 我刚充钱买了咋就这样 2.加上单篇日记导出功能，同时反应主题背景 2.无边记联动只能导入照片，希望其他的歌曲、地点也能联动

### 5/5 — favorite app

*2026-06-02*

i love interstellar and this app is amazing. i love you can purchase lifetime access, i dont pay for subscriptions and i bought the lifetime. it updates regularly too! perfect app and i don’t ever stuck to apps because of my adhd

### 5/5 — 너무 아름다운 앱이에요 다만

*2026-06-01*

1년 넘게 잘 사용하고 있어요 이런 아름다운 앱을 개발해 주신 개발자님께 감사합니다 다만 최근 업데이트가 된 건지, 업로드를 하면 제목이 예를 들어 ‘테서렉트...’ 이렇게 표기됩니다 기존에는 깔끔하게 ‘테서렉트’ 제목만 표기됐는데 다른 문제점이 있는지 알고 싶어요

## Frequently asked questions about Tesseract

### What is Tesseract - Emotional Journal?

Tesseract is an emotional journaling app that uses an immersive 3D interface inspired by interstellar concepts. It allows users to record memories and explore them as coordinates in a unique, visually engaging way.

### What are the key features of this journaling app?

Key features include an immersive 3D Tesseract interface, voice dictation for easy writing, AI-powered journaling prompts, aesthetic themes with animations, and secure automatic iCloud syncing for privacy and cross-device access.

### Is Tesseract a free app?

The app is free to download and use, offering core journaling functionalities. It also includes in-app purchases, suggesting that some advanced features or customization options may be available for purchase.

### How does the app ensure user privacy?

The app is designed with privacy as a priority. Entries are saved securely to your personal iCloud, requiring no sign-in. This ensures that only you can access your memories, and they sync automatically across your devices.

### What are some common use cases for Tesseract?

This app is ideal for daily emotional journaling, tracking moods, preserving special memories, and engaging in self-reflection. Its unique interface and features make it suitable for users who want a more creative and engaging journaling experience than traditional diary apps.

## Version history (last 5 releases)

### 69 — 2026-08-18

- Now available on macOS
- Stability and usability improvements

### 68 — 2026-07-19

- Stability and usability improvements

### 67 — 2026-07-08

- New 'Gargantua' theme
- Now available in Thai and Ukrainian
- Stability and usability improvements

### 66 — 2026-06-21

- New "On This Day" widget. Each day it brings a past diary entry to your Home Screen, along with its photo.
- Stability and usability improvements

### 65 — 2026-06-19

- Stability and usability improvements

## Apps similar to Tesseract

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Private Diary & Journal App](https://appshunter.io/ios/app/private-diary-and-journal-app/id6608983404) | 4.6 (46) | Free | Lifestyle |
| [My Diary with password & lock](https://appshunter.io/ios/app/my-diary-with-password-and-lock/id6467194692) | 4.7 (601) | Free | Lifestyle |
| [My Diary - Journal with Lock](https://appshunter.io/ios/app/my-diary-journal-with-lock/id1579321589) | 4.7 (28,004) | Free | Lifestyle |
| [My Daily Diary ‎](https://appshunter.io/ios/app/my-daily-diary/id1447344390) | 4.7 (1,126) | Free | Lifestyle |
| [Daily Journal: Diary with Lock](https://appshunter.io/ios/app/daily-journal-diary-with-lock/id1605113008) | 4.8 (5,484) | Free | Lifestyle |
| [Diary, Journal, Notes - Diaro](https://appshunter.io/ios/app/diary-journal-notes-diaro/id882519460) | 4.7 (4,483) | Free | Lifestyle |

## More apps by Goateraction

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All apps by Goateraction: https://appshunter.io/developer/1647805479

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*