# Netrin Enhance vs Change 66

The clearest difference is in-app purchases: Change 66 at none against Netrin Enhance's 9. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Netrin Enhance sells 9 one-off in-app purchases. Change 66 asks for nothing beyond the download.

Netrin Enhance ships an update fortnightly, Change 66 every 4 weeks. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Netrin Enhance | Change 66 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/netrin-enhance/id6446400110/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 181 MB | 59 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Netrin](https://appshunter.io/developer/1518577674) | [Svar TriFit Wellness Private Limited](https://appshunter.io/developer/1788605875) |

## What reviewers say

### Netrin Enhance

[App page](https://appshunter.io/ios/app/netrin-enhance/id6446400110)

This app enhances cardiovascular well-being through engaging exercises and advanced heart rate monitoring. It offers personalized training plans, real-time coaching, and motivational support to help users achieve their fitness goals.

**Highlights:** ECG sensor integration for accurate heart rate monitoring, Cardiac assessment and Netrin Heart Score, Adaptive training based on readiness tests, Real-time guided coaching with pace adjustments, Accountability partners and expert insights, Motivational challenges and achievement tracking

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Plan 3 months | $105.99 | one-time |
| Pro Plan 3 months | $149.99 | one-time |
| Smart Plan 6 months | $186.99 | one-time |
| Pro Plan 6 months | $249.99 | one-time |
| Smart Plan 12 months | $304.99 | one-time |
| Pulse Plan 3 months | $350.00 | one-time |
| Pro Plan 12 months | $499.99 | one-time |
| Pulse Plan 6 months | $589.00 | one-time |
| Pulse Plan 12 months | $1000.00 | one-time |


### Change 66

[App page](https://appshunter.io/ios/app/change-66/id6745732973)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Netrin Enhance free?

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

### Is Change 66 free?

Change 66 is free to download, with no in-app purchases.

### Do Netrin Enhance or Change 66 have ads?

Neither Netrin Enhance nor Change 66 shows ads.

### Which is updated more often, Netrin Enhance or Change 66?

Netrin Enhance ships an update fortnightly, and Change 66 every 4 weeks. Most recently, Netrin Enhance was updated on October 7, 2026 and Change 66 on October 17, 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.*