# DietDiary AI vs CarbFlow

The clearest difference is ads: CarbFlow at none against DietDiary AI's shown. DietDiary AI's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DietDiary AI ships an update every 4 days, CarbFlow every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DietDiary AI | CarbFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 3 days** |
| Size | 33 MB | 6 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [GivenNow](https://appshunter.io/developer/480553770) | [嘉琪 郑](https://appshunter.io/developer/1892992542) |

## What reviewers say

### DietDiary AI

[App page](https://appshunter.io/ios/app/dietdiary-ai-calorie-tracker/id6755058085)

**In-app purchases:** none


### CarbFlow

[App page](https://appshunter.io/ios/app/carbflow/id6762150519)

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

**In-app purchases:** none


## Frequently asked questions

### Is DietDiary AI free?

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

### Is CarbFlow free?

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

### Do DietDiary AI or CarbFlow have ads?

DietDiary AI shows ads; CarbFlow does not.

### Which is updated more often, DietDiary AI or CarbFlow?

DietDiary AI ships an update every 4 days, and CarbFlow every 3 days. Most recently, DietDiary AI was updated on October 30, 2026 and CarbFlow on October 31, 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.*