# Endurance tool vs Zerenly

The clearest difference is review sentiment: Zerenly at 100% against Endurance tool's 33%. Zerenly also leads on rating (5.0 vs 4.3). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Endurance tool sells 7 in-app purchases, starting at $0.99 per 7 days and Zerenly sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Zerenly holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 33% of Endurance tool's written reviews are positive against 100% of Zerenly's.

Endurance tool ships an update every 5 weeks, Zerenly monthly. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Endurance tool | Zerenly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/endurance-tool/id1237312003/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/zerenly/id6466443632/reviews)** |
| Number of ratings | 4 | 4 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 55 MB | 61 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [Eira Health](https://appshunter.io/developer/1678112187) | [Zerenly](https://appshunter.io/developer/1761619761) |

## What reviewers say

### Endurance tool

[App page](https://appshunter.io/ios/app/endurance-tool/id1237312003)

Connect with your coach or training team to receive personalized workout recommendations, track your progress, and view detailed session information. Monitor your performance metrics, including speed, distance, heart rate, and GPS data, and share feedback with your coach.

**Highlights:** Connect with coaches and teams, Receive personalized recommendations, Access training calendar and session details, Track running, cycling, and swimming sessions, Monitor speed, distance, heart rate, and GPS, Send feedback to coach

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Semanal | $0.99 | per 7 days |
| ET Premium Mensual | $0.99 | per month |
| ET Premium Mensual DEV | $0.99 | per month |
| Premium Mensual | $2.99 | per month |
| ET Premium Anual | $9.99 | per year |
| ET Premium Anual DEV | $9.99 | per year |
| Premium Anual | $14.99 | per year |


### Zerenly

[App page](https://appshunter.io/ios/app/zerenly/id6466443632)

This app provides a private space to log, understand, and track your daily emotions. It helps you identify patterns and gain self-awareness through daily recaps and personalized reflections. It's a tool for emotional clarity and personal growth.

**Highlights:** Log daily emotions, Write emotional journal entries, Visualize emotional journey, Receive daily emotion recaps, Discover personalized weekly reflections, Access supportive content, Save key phrases and learnings

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zerenly Grupos | $0.99 | per month |
| Zerenly Grupos | $14.99 | per month |


## Frequently asked questions

### Is Endurance tool free?

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

### Is Zerenly free?

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

### Which has better reviews, Endurance tool or Zerenly?

Zerenly is rated higher. Endurance tool averages 4.3 out of 5 from 4 ratings, while Zerenly averages 5.0 from 4 ratings.

### Do Endurance tool or Zerenly have ads?

Neither Endurance tool nor Zerenly shows ads.

### Which is updated more often, Endurance tool or Zerenly?

Endurance tool ships an update every 5 weeks, and Zerenly monthly. Most recently, Endurance tool was updated on October 7, 2026 and Zerenly on October 11, 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.*