# tero studio vs Workout Doctor

The clearest difference is price: tero studio at Free against Workout Doctor's $3.99. tero studio also leads on in-app purchases (none vs 1). Workout Doctor's advantage is update cadence (weekly vs every 5 months) and chart position (#188 vs unranked). On ads, device support and iOS requirement there is nothing between them.

tero studio is free to download; Workout Doctor costs $3.99 up front. Workout Doctor sells 1 one-off in-app purchase. tero studio asks for nothing beyond the download.

tero studio ships an update every 5 months, Workout Doctor weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | tero studio | Workout Doctor |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/workout-doctor/id6791588745/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#188** |
| Size | 83 MB | 8 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [MM STUDIOS](https://appshunter.io/developer/1889811606) | [Alix Marion](https://appshunter.io/developer/1877716020) |

## What reviewers say

### tero studio

[App page](https://appshunter.io/ios/app/tero-studio/id6762124502)

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

**In-app purchases:** none


### Workout Doctor

[App page](https://appshunter.io/ios/app/workout-doctor/id6791588745)

**Currently charting:** #188 Top Paid · Health & Fitness (US App Store)

This app allows you to fix and enhance workout data stored in Apple Health. You can merge, trim, and correct workout entries to accurately reflect your activities, ensuring your original data remains untouched.

**Highlights:** Merge multiple workouts, Trim unwanted workout sections, Correct inaccurate workout data, Save repaired copies to Apple Health, Preserve original workout data, Works directly with Apple Health

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Repairs | $5.99 | one-time |


## Frequently asked questions

### Is tero studio free?

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

### Is Workout Doctor free?

Workout Doctor costs $3.99, and also offers in-app purchases.

### Do tero studio or Workout Doctor have ads?

Neither tero studio nor Workout Doctor shows ads.

### Which is updated more often, tero studio or Workout Doctor?

tero studio ships an update every 5 months, and Workout Doctor weekly. Most recently, tero studio was updated on October 31, 2026 and Workout Doctor on October 31, 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.*