# Ankle Flex vs Calorie Smart AI

The clearest difference is in-app purchases: Ankle Flex at none against Calorie Smart AI's 4. Calorie Smart AI's advantage is update cadence (every 5 days vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calorie Smart AI sells 4 in-app purchases, starting at $3.49 per month. Ankle Flex asks for nothing beyond the download.

Ankle Flex ships an update every 5 months, Calorie Smart AI every 5 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Ankle Flex | Calorie Smart AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (16 ratings)](https://appshunter.io/ios/app/calorie-smart-ai-track-macros/id6755705804/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 10 MB | 56 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Perry Hooker](https://appshunter.io/developer/1827290197) | [Vertex Pointe LLC](https://appshunter.io/developer/1855740030) |

## What reviewers say

### Ankle Flex

[App page](https://appshunter.io/ios/app/ankle-flex/id6748759970)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calorie Smart AI

[App page](https://appshunter.io/ios/app/calorie-smart-ai-track-macros/id6755705804)

Effortlessly track your food intake using voice, photos, or barcodes. This AI-powered app provides instant macro breakdowns, a unified health dashboard, and smart insights to help you achieve your wellness goals without the usual hassle.

**Highlights:** Instant voice logging, AI photo food identification, Barcode scanning, Unified health dashboard, Daily health score, Macro and nutrition breakdown

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.49 | per month |
| Quaterly | $8.39 | per 3 months |
| Yearly | $26.49 | per year |
| LifeTime promotion | $19.99 | one-time |


## Frequently asked questions

### Is Ankle Flex free?

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

### Is Calorie Smart AI free?

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

### Do Ankle Flex or Calorie Smart AI have ads?

Neither Ankle Flex nor Calorie Smart AI shows ads.

### Which is updated more often, Ankle Flex or Calorie Smart AI?

Ankle Flex ships an update every 5 months, and Calorie Smart AI every 5 days. Most recently, Ankle Flex was updated on October 28, 2026 and Calorie Smart AI 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.*