# Devdy vs Diet AI

The clearest difference is in-app purchases: Devdy at none against Diet AI's 2. Devdy also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.5). Diet AI's advantage is update cadence (every 3 days vs fortnightly). On price and device support there is nothing between them.

Both are free to download. Diet AI sells 2 in-app purchases, starting at $3.99 per month. Devdy asks for nothing beyond the download.

Devdy ships an update fortnightly, Diet AI every 3 days. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Devdy | Diet AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 45.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 59 MB | 121 MB |
| Requires iOS | **11.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [devenue](https://appshunter.io/developer/1691267014) | [NEONSOAK](https://appshunter.io/developer/1832686166) |

## What reviewers say

### Devdy

[App page](https://appshunter.io/ios/app/devdy/id6468541269)

**Features:** macOS Compatibility

**In-app purchases:** none


### Diet AI

[App page](https://appshunter.io/ios/app/diet-ai-food-calorie-tracker/id6780724271)

Effortlessly track your food intake and calorie goals using natural language chat or photo recognition. This AI-powered coach calculates nutrition, suggests meals, and monitors progress without tedious manual entry.

**Highlights:** Log meals via chat, Log meals with photos, AI food and meal suggestions, Calorie and macronutrient calculation, Weight and macro trend charts, Personalized AI coaching

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ダイエットAI プレミアム月額プラン | $3.99 | per month |
| ダイエットAI プレミアム年間プラン | $29.99 | per year |


## Frequently asked questions

### Is Devdy free?

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

### Is Diet AI free?

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

### Do Devdy or Diet AI have ads?

Diet AI shows ads; Devdy does not.

### Which is updated more often, Devdy or Diet AI?

Devdy ships an update fortnightly, and Diet AI every 3 days. Most recently, Devdy was updated on November 3, 2026 and Diet AI on November 7, 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.*