# Hydrate vs Sip

Hydrate and Sip are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Hydrate sells 3 in-app purchases, starting at $3.99 per month and Sip sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Hydrate | Sip |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | Every 6 days |
| Size | 22 MB | 65 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ALEXANDER DAVID GRUINARD MACKENZIE](https://appshunter.io/developer/1886580061) | [Evgeniy Evdokimchik](https://appshunter.io/developer/1880071790) |

## What reviewers say

### 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 |


### Sip

[App page](https://appshunter.io/ios/app/sip-water-tracker/id6783861319)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sip: monthly subscription | $2.99 | per month |
| Sip: annual subscription | $14.99 | per year |


## Frequently asked questions

### Is Hydrate free?

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

### Is Sip free?

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

### Do Hydrate or Sip have ads?

Neither Hydrate nor Sip shows ads.

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

Hydrate ships an update every 6 days, and Sip every 6 days. Most recently, Hydrate was updated on October 7, 2026 and Sip on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*