# Stretch Timer vs Hydriva

The clearest difference is in-app purchases: Stretch Timer at none against Hydriva's 3. Stretch Timer also leads on iOS requirement (13.0 vs 17.0). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Stretch Timer against 5.0 for Hydriva. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Stretch Timer ships an update every 9 days, Hydriva every 2 weeks. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Stretch Timer | Hydriva |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/stretch-timer-getflexy/id6749179535/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/hydriva-water-tracker/id6800518499/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | **Free** | Freemium |
| Size | 2 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Tiny Tools Studio LLC](https://appshunter.io/developer/939071173) | [Tran Ngoc Trung](https://appshunter.io/developer/6800518501) |

## 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


### Hydriva

[App page](https://appshunter.io/ios/app/hydriva-water-tracker/id6800518499)

Effortlessly track your daily water intake with smart goals and gentle reminders. Log various beverages with a single tap and visualize your progress with motivating achievements and insights. Your hydration data remains private and on your device.

**Highlights:** Smart daily hydration goals, One-tap logging for 18+ beverages, Customizable gentle reminders, Visual progress tracking with a filling water drop, Daily streaks and achievement badges, Privacy-focused with no account required

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sip Pro – Monthly | $2.99 | per month |
| Sip Pro – Yearly | $19.99 | per year |
| Sip Pro – Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Stretch Timer free?

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

### Is Hydriva free?

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

### Which has better reviews, Stretch Timer or Hydriva?

Stretch Timer and Hydriva are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Stretch Timer or Hydriva have ads?

Neither Stretch Timer nor Hydriva shows ads.

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

Stretch Timer ships an update every 9 days, and Hydriva every 2 weeks. Most recently, Stretch Timer was updated on October 2, 2026 and Hydriva on October 14, 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.*