# 100日ダイエットAI vs Zubora

The clearest difference is update cadence: Zubora at every 3 days against 100日ダイエットAI's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 100日ダイエットAI sells 4 in-app purchases, starting at $5.99 per year and Zubora sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

100日ダイエットAI ships an update fortnightly, Zubora every 3 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 100日ダイエットAI | Zubora |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 33 MB | 23 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [株式会社オポチュニティ](https://appshunter.io/developer/1740927723) | [Riki Suzuki](https://appshunter.io/developer/1833465762) |

## What reviewers say

### 100日ダイエットAI

[App page](https://appshunter.io/ios/app/100ai/id6739611540)

Effortlessly track your diet and health with AI-powered photo analysis. Automatically calculate calories, monitor nutritional balance, and receive personalized advice to achieve your weight goals without the hassle of manual input.

**Highlights:** AI calorie and PFC analysis from photos, Nutritional balance scoring, Daily/weekly diet and weight reports, Weight and BMI tracking with graphs, Personalized diet plans, Food item ranking, AI-driven improvement advice

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 食事改善プレミアムプラン(年額) | $5.99 | per year |
| 食事改善プレミアムプラン（年額） | $11.99 | per year |
| 食事改善プラン(永久版) | $5.99 | one-time |
| 食事改善プラン（永久版） | $14.99 | one-time |


### Zubora

[App page](https://appshunter.io/ios/app/zubora/id6763511988)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額Proプラン | $2.99 | per month |
| Zubora Pro (Yearly) | $22.99 | per year |


## Frequently asked questions

### Is 100日ダイエットAI free?

100日ダイエットAI is free to download, with in-app purchases available.

### Is Zubora free?

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

### Do 100日ダイエットAI or Zubora have ads?

Neither 100日ダイエットAI nor Zubora shows ads.

### Which is updated more often, 100日ダイエットAI or Zubora?

100日ダイエットAI ships an update fortnightly, and Zubora every 3 days. Most recently, 100日ダイエットAI was updated on October 24, 2026 and Zubora on October 28, 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.*