# Hydrate vs Hydrate

The clearest difference is update cadence: Hydrate at every 6 days against Hydrate's every 4 months. Hydrate's advantage is iOS requirement (16.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Hydrate sells 1 one-off in-app purchase and Hydrate sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Hydrate ships an update every 4 months, Hydrate every 6 days. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Hydrate | Hydrate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Size | 8 MB | 22 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Tanush Gupta](https://appshunter.io/developer/1821146342) | [ALEXANDER DAVID GRUINARD MACKENZIE](https://appshunter.io/developer/1886580061) |

## What reviewers say

### Hydrate

[App page](https://appshunter.io/ios/app/hydrate-daily-tracker/id6747379098)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hydrate Daily Pro | $2.99 | one-time |


### Hydrate

[App page](https://appshunter.io/ios/app/hydrate-electrolyte-tracker/id6760869789)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hydrate Pro — Monthly | $3.99 | per month |
| Hydrate Pro — Annual | $24.99 | per year |
| Lifetime Pro | $34.99 | one-time |


## Frequently asked questions

### Is Hydrate free?

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

### Is Hydrate free?

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

### Do Hydrate or Hydrate have ads?

Neither Hydrate nor Hydrate shows ads.

### Which is updated more often, Hydrate or Hydrate?

Hydrate ships an update every 4 months, and Hydrate every 6 days. Most recently, Hydrate was updated on September 8, 2026 and Hydrate on September 20, 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.*