# Rubicon Training vs VesperFlow

The clearest difference is device support: VesperFlow at 2 against Rubicon Training's —. Rubicon Training's advantage is iOS requirement (13.4 vs 26.0). On price 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.

## The numbers

| Metric | Rubicon Training | VesperFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 days |
| Size | 28 MB | 29 MB |
| Requires iOS | **13.4** | 26.0 |
| Devices | — | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Fitbase](https://appshunter.io/developer/1530906929) | [Timur Israilov](https://appshunter.io/developer/1667953144) |

## What reviewers say

### Rubicon Training

[App page](https://appshunter.io/ios/app/rubicon-training/id6670395535)

**In-app purchases:** none


### VesperFlow

[App page](https://appshunter.io/ios/app/vesperflow-workout-tracker/id6753347408)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Rubicon Training free?

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

### Is VesperFlow free?

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

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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.*