# Flow Pilates QC vs Fuel. Smart calorie tracker

The clearest difference is update cadence: Fuel. Smart calorie tracker at every 6 days against Flow Pilates QC's every 6 weeks. Flow Pilates QC's advantage is device support (3 vs 1) and iOS requirement (15 vs 17.0). On price, ads 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.

Flow Pilates QC ships an update every 6 weeks, Fuel. Smart calorie tracker every 6 days. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flow Pilates QC | Fuel. Smart calorie tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Size | 81 MB | 17 MB |
| Requires iOS | **15** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Flow Pilates inc.](https://appshunter.io/developer/1788406319) | [Clean Whale](https://appshunter.io/developer/1584548877) |

## What reviewers say

### Flow Pilates QC

[App page](https://appshunter.io/ios/app/flow-pilates-qc/id6711355298)

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

**In-app purchases:** none


### Fuel. Smart calorie tracker

[App page](https://appshunter.io/ios/app/fuel-smart-calorie-tracker/id6799176366)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flow Pilates QC free?

Flow Pilates QC is free to download, with no in-app purchases.

### Is Fuel. Smart calorie tracker free?

Fuel. Smart calorie tracker is free to download, with no in-app purchases.

### Do Flow Pilates QC or Fuel. Smart calorie tracker have ads?

Neither Flow Pilates QC nor Fuel. Smart calorie tracker shows ads.

### Which is updated more often, Flow Pilates QC or Fuel. Smart calorie tracker?

Flow Pilates QC ships an update every 6 weeks, and Fuel. Smart calorie tracker every 6 days. Most recently, Flow Pilates QC was updated on October 17, 2026 and Fuel. Smart calorie tracker on October 25, 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.*