# UPREADY AI performance tracker vs EndureIndex

The clearest difference is update cadence: UPREADY AI performance tracker at every 4 days against EndureIndex's every 3 weeks. UPREADY AI performance tracker also leads on iOS requirement (17.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. UPREADY AI performance tracker sells 2 in-app purchases, starting at $4.99 per month and EndureIndex sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UPREADY AI performance tracker ships an update every 4 days, EndureIndex every 3 weeks. Both last shipped on October 3, 2026.

## The numbers

| Metric | UPREADY AI performance tracker | EndureIndex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/upready-ai-performance-tracker/id6738921753/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 8 MB |
| Requires iOS | **17.1** | 26.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Ana Duque](https://appshunter.io/developer/1549314817) | [Danilo Krautz](https://appshunter.io/developer/1875731224) |

## What reviewers say

### UPREADY AI performance tracker

[App page](https://appshunter.io/ios/app/upready-ai-performance-tracker/id6738921753)

This AI-powered app analyzes your sleep, workout load, and HRV to provide a daily readiness score. It helps you understand your body's preparedness for the day and offers insights into your recovery and stress levels. You can also connect with friends to share and monitor each other's progress.

**Highlights:** AI-powered readiness score, Load indicator for workout stress, Sleep quality insights, Heart Rate Variability (HRV) tracking, Friends and family monitoring, Privacy-focused data handling

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly Subscription | $49.99 | per year |


### EndureIndex

[App page](https://appshunter.io/ios/app/endureindex-training/id6760260948)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EndureIndex Pro Monthly | $1.99 | per month |
| EndureIndex Pro Yearly | $14.99 | per year |


## Frequently asked questions

### Is UPREADY AI performance tracker free?

UPREADY AI performance tracker is free to download, with in-app purchases available.

### Is EndureIndex free?

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

### Do UPREADY AI performance tracker or EndureIndex have ads?

Neither UPREADY AI performance tracker nor EndureIndex shows ads.

### Which is updated more often, UPREADY AI performance tracker or EndureIndex?

UPREADY AI performance tracker ships an update every 4 days, and EndureIndex every 3 weeks. Most recently, UPREADY AI performance tracker was updated on October 3, 2026 and EndureIndex on October 3, 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.*