# Stretch Timer vs Hydrelle

The clearest difference is in-app purchases: Stretch Timer at none against Hydrelle's 3. Stretch Timer also leads on ads (none vs shown) and update cadence (every 9 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Hydrelle sells 3 in-app purchases, starting at $2.99 per month. Stretch Timer asks for nothing beyond the download.

Stretch Timer ships an update every 9 days, Hydrelle every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Stretch Timer | Hydrelle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/stretch-timer-getflexy/id6749179535/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 2 MB | 85 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tiny Tools Studio LLC](https://appshunter.io/developer/939071173) | [Tomohito Kii](https://appshunter.io/developer/1689523321) |

## What reviewers say

### Stretch Timer

[App page](https://appshunter.io/ios/app/stretch-timer-getflexy/id6749179535)

This app provides a simple, repeating timer for stretching that runs in the background on your Apple Watch. It guides you through custom stretch and rest periods with gentle sound or haptic cues, allowing you to multitask with other activities.

**Highlights:** Background timer for multitasking, Tap to start/stop, Custom stretch and rest intervals, Haptic and sound alerts, Repeat count tracking, Countdown for final seconds

**In-app purchases:** none


### Hydrelle

[App page](https://appshunter.io/ios/app/hydrelle-water-tracker/id6761470806)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Annual Premium | $14.99 | per year |
| Lifetime Premium | $29.99 | one-time |


## Frequently asked questions

### Is Stretch Timer free?

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

### Is Hydrelle free?

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

### Do Stretch Timer or Hydrelle have ads?

Hydrelle shows ads; Stretch Timer does not.

### Which is updated more often, Stretch Timer or Hydrelle?

Stretch Timer ships an update every 9 days, and Hydrelle every 3 weeks. Most recently, Stretch Timer was updated on October 30, 2026 and Hydrelle on October 31, 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.*