# Keep your fluids up vs Gymstructor Training App

The clearest difference is in-app purchases: Keep your fluids up at none against Gymstructor Training App's 3. Keep your fluids up also leads on iOS requirement (11.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Gymstructor Training App sells 3 in-app purchases, starting at $3.99 per month. Keep your fluids up asks for nothing beyond the download.

Keep your fluids up ships an update every 2 months, Gymstructor Training App every 3 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Keep your fluids up | Gymstructor Training App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 13 MB | 67 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Futured apps](https://appshunter.io/developer/539440820) | [Jakub Linhart](https://appshunter.io/developer/1150844191) |

## What reviewers say

### Keep your fluids up

[App page](https://appshunter.io/ios/app/keep-your-fluids-up/id757896891)

This app helps you maintain a consistent hydration schedule by calculating your ideal daily water intake and sending customized reminders. It allows you to easily log each glass consumed throughout the day to ensure optimal liquid processing for improved energy levels.

**Highlights:** Personalized daily water intake calculation, Easy glass logging, Customized drinking reminders, Boosts energy levels, Supports iPhone and iPod

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

**In-app purchases:** none


### Gymstructor Training App

[App page](https://appshunter.io/ios/app/gymstructor-training-app/id6462850128)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $3.99 | per month |
| Three-month subscription | $9.99 | per 3 months |
| Annual subscription | $29.99 | per year |


## Frequently asked questions

### Is Keep your fluids up free?

Keep your fluids up is free to download, with no in-app purchases.

### Is Gymstructor Training App free?

Gymstructor Training App is free to download, with in-app purchases available.

### Do Keep your fluids up or Gymstructor Training App have ads?

Neither Keep your fluids up nor Gymstructor Training App shows ads.

### Which is updated more often, Keep your fluids up or Gymstructor Training App?

Keep your fluids up ships an update every 2 months, and Gymstructor Training App every 3 months. Most recently, Keep your fluids up was updated on October 5, 2026 and Gymstructor Training App 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.*