# TrainFlow vs FitStack

The clearest difference is in-app purchases: TrainFlow at none against FitStack's 2. FitStack's advantage is iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. FitStack sells 2 in-app purchases, starting at $4.99 per month. TrainFlow asks for nothing beyond the download.

## The numbers

| Metric | TrainFlow | FitStack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 56 MB | 6 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [THX IT Oy](https://appshunter.io/developer/1741943093) | [柯 曹](https://appshunter.io/developer/1870137173) |

## What reviewers say

### TrainFlow

[App page](https://appshunter.io/ios/app/trainflow-training-plans/id6744355617)

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

**In-app purchases:** none


### FitStack

[App page](https://appshunter.io/ios/app/fitstack-workout-planner/id6789883086)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FitStack PRO | $4.99 | per month |
| FitStack PRO | $39.99 | per year |


## Frequently asked questions

### Is TrainFlow free?

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

### Is FitStack free?

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

### Do TrainFlow or FitStack have ads?

Neither TrainFlow nor FitStack shows ads.

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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.*