# HydroLabs vs AbsolutSweat

The clearest difference is update cadence: AbsolutSweat at fortnightly against HydroLabs's every 9 months. HydroLabs's advantage is iOS requirement (12.4 vs 15.6). 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.

HydroLabs ships an update every 9 months, AbsolutSweat fortnightly. Both last shipped on October 7, 2026.

## The numbers

| Metric | HydroLabs | AbsolutSweat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydrolabs/id1567328442/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 18 MB | 42 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hydrosis Inc.](https://appshunter.io/developer/1567328444) | [Shenzhen Refresh Biosensing Technology Co., Ltd.](https://appshunter.io/developer/1405391433) |

## What reviewers say

### HydroLabs

[App page](https://appshunter.io/ios/app/hydrolabs/id1567328442)

This app analyzes your individual hydration levels using a wearable sweat patch to create personalized hydration plans. Track fluid loss during activities and receive data-driven recommendations for optimal performance and recovery.

**Highlights:** Wearable sweat patch integration, Precise fluid loss measurement, Personalized hydration plan generation, Activity tracking for hydration levels, Data analysis for optimal recommendations

**Features:** macOS Compatibility

**In-app purchases:** none


### AbsolutSweat

[App page](https://appshunter.io/ios/app/absolutsweat/id6443573387)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HydroLabs free?

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

### Is AbsolutSweat free?

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

### Do HydroLabs or AbsolutSweat have ads?

Neither HydroLabs nor AbsolutSweat shows ads.

### Which is updated more often, HydroLabs or AbsolutSweat?

HydroLabs ships an update every 9 months, and AbsolutSweat fortnightly. Most recently, HydroLabs was updated on October 7, 2026 and AbsolutSweat on October 7, 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.*