# Celestial AI Agent vs No Sugar Diary

The clearest difference is price: Celestial AI Agent at Free against No Sugar Diary's $0.99. No Sugar Diary's advantage is in-app purchases (none vs 2) and ads (none vs shown). On review sentiment, device support and iOS requirement there is nothing between them.

Celestial AI Agent is free to download; No Sugar Diary costs $0.99 up front. Celestial AI Agent sells 2 in-app purchases, starting at $5.99 per month. No Sugar Diary asks for nothing beyond the download.

Celestial AI Agent ships an update every 6 weeks, No Sugar Diary every 9 days. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Celestial AI Agent | No Sugar Diary |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/celestial-ai-agent/id6743806254/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 754 MB | 483 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 12+ |
| Developer | [尔为 陈](https://appshunter.io/developer/1802361591) | [林蓉 李](https://appshunter.io/developer/1888657513) |

## What reviewers say

### Celestial AI Agent

[App page](https://appshunter.io/ios/app/celestial-ai-agent/id6743806254)

This app offers a unique approach to emotional well-being by acting as an intelligent companion that senses and understands your emotional state. It guides you towards stability and clarity through personalized support, integrating biometric signals and sound design into your daily life.

**Highlights:** AI emotional regulation, Biometric signal integration, Personalized emotional support, Intelligent companionship, Seamless daily integration, Proactive healing environment

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $5.99 | per month |
| Yearly Membership Subscription | $59.99 | per year |


### No Sugar Diary

[App page](https://appshunter.io/ios/app/no-sugar-diary/id6761287422)

This habit journal helps you track and reduce any urge or habit you want to change, from food cravings to screen time. Record your progress, feelings, and successes to stay consistent and regain control over your lifestyle choices.

**Highlights:** Customizable habit labeling, Daily progress tracking, Streak and total count monitoring, Journal entries with text, image, and voice, Shareable progress cards, Optional offline AI companion, Apple Watch data sync

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Celestial AI Agent free?

Celestial AI Agent is free to download, with in-app purchases available.

### Is No Sugar Diary free?

No Sugar Diary costs $0.99, with no in-app purchases.

### Do Celestial AI Agent or No Sugar Diary have ads?

Celestial AI Agent shows ads; No Sugar Diary does not.

### Which is updated more often, Celestial AI Agent or No Sugar Diary?

Celestial AI Agent ships an update every 6 weeks, and No Sugar Diary every 9 days. Most recently, Celestial AI Agent was updated on October 16, 2026 and No Sugar Diary on October 24, 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.*