# EnergyRoutine vs retimer Ring

The clearest difference is in-app purchases: retimer Ring at none against EnergyRoutine's 2. retimer Ring also leads on iOS requirement (15.6 vs 17.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. EnergyRoutine sells 2 in-app purchases, starting at $3.99 per month. retimer Ring asks for nothing beyond the download.

EnergyRoutine ships an update weekly, retimer Ring every 9 days. The most recent releases landed on September 24, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | EnergyRoutine | retimer Ring |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/retimer-ring/id6741458213/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | — | Free |
| Size | 52 MB | 94 MB |
| Requires iOS | 17.2 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Myoungsu Choi](https://appshunter.io/developer/1705585064) | [Re-Time Pty Ltd](https://appshunter.io/developer/637379603) |

## What reviewers say

### EnergyRoutine

[App page](https://appshunter.io/ios/app/energyroutine/id6464148405)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Membership | $3.99 | per month |
| Pro Membership | $23.99 | per year |


### retimer Ring

[App page](https://appshunter.io/ios/app/retimer-ring/id6741458213)

This wearable companion tracks your sleep, activity, stress, and heart health to provide insights for better well-being. It offers advanced sleep stage analysis, VO₂ Max tracking, and supports 18 exercise modes, all accessible through a single app without a subscription.

**Highlights:** Comprehensive health tracking, Advanced sleep analysis, VO₂ Max estimation, 18 exercise modes, No subscription required, Activity and stress monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EnergyRoutine free?

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

### Is retimer Ring free?

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

### Do EnergyRoutine or retimer Ring have ads?

Neither EnergyRoutine nor retimer Ring shows ads.

### Which is updated more often, EnergyRoutine or retimer Ring?

EnergyRoutine ships an update weekly, and retimer Ring every 9 days. Most recently, EnergyRoutine was updated on September 24, 2026 and retimer Ring on June 2, 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.*