# CTS ActivityLab vs HealthyFast

The clearest difference is update cadence: CTS ActivityLab at every 2 days against HealthyFast's every 6 days. HealthyFast's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CTS ActivityLab sells 1 in-app purchase, starting at $1.99 per month and HealthyFast sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

CTS ActivityLab ships an update every 2 days, HealthyFast every 6 days. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CTS ActivityLab | HealthyFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cts-activitylab/id6786826686/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 days |
| Monetization | Freemium | — |
| Size | 9 MB | 53 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [CTS Media Group LLC](https://appshunter.io/developer/6786826688) | [Jimmy Hansen](https://appshunter.io/developer/6803673426) |

## What reviewers say

### CTS ActivityLab

[App page](https://appshunter.io/ios/app/cts-activitylab/id6786826686)

Analyze detailed fitness data from various sports devices. Compare multiple activities, inspect GPS accuracy, and visualize routes and statistics with powerful charts. Gain insights beyond basic watch metrics.

**Highlights:** Compare multiple activities side-by-side, Import activities from Apple Health, Analyze GPS accuracy and track quality, Inspect elevation and altitude data, Review sensor metrics (heart rate, pace, etc.), Visualize routes and statistics with charts, Compare device accuracy with custom algorithm

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CTS ActiveLab Monthly | $1.99 | per month |


### HealthyFast

[App page](https://appshunter.io/ios/app/healthyfast/id6803673424)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Display Name: Premium Yearly | $22.99 | per year |


## Frequently asked questions

### Is CTS ActivityLab free?

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

### Is HealthyFast free?

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

### Do CTS ActivityLab or HealthyFast have ads?

Neither CTS ActivityLab nor HealthyFast shows ads.

### Which is updated more often, CTS ActivityLab or HealthyFast?

CTS ActivityLab ships an update every 2 days, and HealthyFast every 6 days. Most recently, CTS ActivityLab was updated on October 10, 2026 and HealthyFast on October 24, 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.*