# WalkingTestApp vs Probell

The clearest difference is update cadence: Probell at every 3 days against WalkingTestApp's every 2 months. WalkingTestApp's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. WalkingTestApp sells 2 one-off in-app purchases and Probell sells 9 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

WalkingTestApp ships an update every 2 months, Probell every 3 days. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | WalkingTestApp | Probell |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 2 MB | 9 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Dennis Schmidt](https://appshunter.io/developer/397235339) | [Tom Gassner](https://appshunter.io/developer/1892882803) |

## What reviewers say

### WalkingTestApp

[App page](https://appshunter.io/ios/app/walkingtestapp/id6447526703)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Customize your walking times | $2.99 | one-time |
| Customize your walking time | $2.99 | one-time |


### Probell

[App page](https://appshunter.io/ios/app/probell-team-workouts/id6762096077)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Probell Pro | $2.99 | per month |
| Probell Coach | $9.99 | per month |
| Workout Plan | $0.99 | one-time |
| Workout Plan | $1.99 | one-time |
| Workout Plan | $2.99 | one-time |
| Restock 10 | $2.99 | one-time |
| Workout Plan | $4.99 | one-time |
| Workout Plan | $9.99 | one-time |
| Workout Plan | $14.99 | one-time |


## Frequently asked questions

### Is WalkingTestApp free?

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

### Is Probell free?

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

### Do WalkingTestApp or Probell have ads?

Neither WalkingTestApp nor Probell shows ads.

### Which is updated more often, WalkingTestApp or Probell?

WalkingTestApp ships an update every 2 months, and Probell every 3 days. Most recently, WalkingTestApp was updated on September 18, 2026 and Probell on September 10, 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.*