# KOIN Performance vs Water Warrior

The clearest difference is review sentiment: KOIN Performance at 100% against Water Warrior's 50%. KOIN Performance also leads on rating (5.0 vs 3.7). Water Warrior's advantage is monetization model (free vs free with in-app purchases) and ratings volume (3 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KOIN Performance holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 100% of KOIN Performance's written reviews are positive against 50% of Water Warrior's.

## The numbers

| Metric | KOIN Performance | Water Warrior |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/koin-performance/id6759755347/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/water-warrior/id6797108651/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1 MB | 7 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KOIN LLC](https://appshunter.io/developer/1872893258) | [ALEC JIRO MIYASHITA](https://appshunter.io/developer/6797108653) |

## What reviewers say

### KOIN Performance

[App page](https://appshunter.io/ios/app/koin-performance/id6759755347)

This app provides structured, personalized training plans tailored to your goals, schedule, and available equipment. It offers daily workout protocols, progress tracking, and an AI-powered performance assistant for guidance and accountability.

**Highlights:** Personalized training plans, Daily workout protocols, Progress tracking, AI performance assistant (KOACH), Adaptive training based on goals and environment, Workout logging

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

**In-app purchases:** none


### Water Warrior

[App page](https://appshunter.io/ios/app/water-warrior/id6797108651)

Easily track your water intake, set personalized goals, and monitor your progress to build healthy hydration habits. Connect with friends for social encouragement and accountability.

**Highlights:** Quick hydration logging, Personalized daily goals, Progress tracking and streaks, Hydration reminders, Friend connections, Social encouragement

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KOIN Performance free?

KOIN Performance is free to download, with no in-app purchases.

### Is Water Warrior free?

Water Warrior is free to download, with no in-app purchases.

### Which has better reviews, KOIN Performance or Water Warrior?

KOIN Performance is rated higher. KOIN Performance averages 5.0 out of 5 from 1 ratings, while Water Warrior averages 3.7 from 3 ratings.

### Do KOIN Performance or Water Warrior have ads?

Neither KOIN Performance nor Water Warrior shows ads.

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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.*