# AI Calorie Tracker by Oneleaf vs Stack

AI Calorie Tracker by Oneleaf and Stack are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. AI Calorie Tracker by Oneleaf sells 2 in-app purchases, starting at $9.99 per month and Stack sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

AI Calorie Tracker by Oneleaf ships an update every 5 days, Stack every 3 days. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | AI Calorie Tracker by Oneleaf | Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/ai-calorie-tracker-by-oneleaf/id6761541989/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 84 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oneleaf](https://appshunter.io/developer/1640028542) | [Henry Hinge](https://appshunter.io/developer/6784458312) |

## What reviewers say

### AI Calorie Tracker by Oneleaf

[App page](https://appshunter.io/ios/app/ai-calorie-tracker-by-oneleaf/id6761541989)

Easily track your calorie and macronutrient intake by simply snapping a photo of your meal. Get instant nutritional estimates and set personalized weight loss goals. Log meals in seconds and monitor your progress with visual tools.

**Highlights:** AI food scanning for instant nutrition estimates, Calorie, macro, and micronutrient tracking, Personalized weight loss goal setting, Quick meal logging via photo or search, Weight progress tracking and trend visualization, Daily calorie budget and macro rings

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $9.99 | per month |
| Premium Yearly | $34.99 | per year |


### Stack

[App page](https://appshunter.io/ios/app/stack-supplement-tracker/id6784458310)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Pro | $5.99 | per month |
| Stack Pro | $39.99 | per year |


## Frequently asked questions

### Is AI Calorie Tracker by Oneleaf free?

AI Calorie Tracker by Oneleaf is free to download, with in-app purchases available.

### Is Stack free?

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

### Do AI Calorie Tracker by Oneleaf or Stack have ads?

Neither AI Calorie Tracker by Oneleaf nor Stack shows ads.

### Which is updated more often, AI Calorie Tracker by Oneleaf or Stack?

AI Calorie Tracker by Oneleaf ships an update every 5 days, and Stack every 3 days. Most recently, AI Calorie Tracker by Oneleaf was updated on September 20, 2026 and Stack on September 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.*