# WaterH vs Flash Studio

The clearest difference is ads: WaterH at none against Flash Studio's shown. WaterH also leads on review sentiment (86% vs 58%) and monetization model (free vs ad-supported). Flash Studio's advantage is update cadence (weekly vs monthly). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

WaterH holds the better App Store score, 4.9 against 4.8. Both are backed by a comparable volume of ratings — 3.9K and 5.4K respectively. Written reviews point the same way: 86% of WaterH's written reviews are positive against 58% of Flash Studio's.

WaterH ships an update monthly, Flash Studio weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | WaterH | Flash Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (3.9K ratings)](https://appshunter.io/ios/app/waterh/id1587838572/reviews)** | [4.8 (5.4K ratings)](https://appshunter.io/ios/app/flash-studio/id6756779254/reviews) |
| Number of ratings | 3.9K | **5.4K** |
| Positive reviews | **86.3% of reviews** | 58.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 79 MB | 99 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [WaterH Inc](https://appshunter.io/developer/1587838574) | [浙江闪铸三维科技有限公司](https://appshunter.io/developer/999198567) |

## What reviewers say

### WaterH

[App page](https://appshunter.io/ios/app/waterh/id1587838572)

This app helps you track your water intake and reminds you to stay hydrated. It offers personalized goals, automatic tracking via a smart bottle, and insights into your hydration habits. It also includes water quality monitoring and integrates with Apple Health.

**Highlights:** Personalized hydration goals, 360 LED glow reminder, Auto hydration tracking, Water quality sensor, Apple Health integration, History & reports

**In-app purchases:** none

**What reviewers like**

- 👍 Helps track water intake
- 🚀 Motivates to drink more water
- ⏰ Useful reminders and alerts
- 📊 Detailed water consumption data
- 🔋 Long-lasting battery life

**What reviewers complain about**

- 🐛 Inaccurate water tracking
- 🔍 Limited background sync capabilities
- 🔌 Connectivity issues with app
- 🔧 Unreliable app performance after updates
- 🚫 Lack of Apple Health integration

**Reported bugs**

- App crashes after new update
- Water intake data resets unexpectedly
- Bottle disconnects frequently from app
- Reminders not working as expected

**Requested features**

- Larger water bottle capacity
- Customizable reminder settings
- Automatic water logging in the background
- More detailed water quality metrics
- Apple Watch app or widget


### Flash Studio

[App page](https://appshunter.io/ios/app/flash-studio/id6756779254)

Manage your 3D printers remotely from your smartphone. Monitor print status, view live video feeds of your printer's operations, and control multiple printers simultaneously.

**Highlights:** Remote printer monitoring, Real-time video feed, Manage grouped printers, On-the-go management, Smartphone integration

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

**In-app purchases:** none


## Frequently asked questions

### Is WaterH free?

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

### Is Flash Studio free?

Flash Studio is free to download, with no in-app purchases.

### Which has better reviews, WaterH or Flash Studio?

WaterH is rated higher. WaterH averages 4.9 out of 5 from 3.9K ratings, while Flash Studio averages 4.8 from 5.4K ratings.

### Do WaterH or Flash Studio have ads?

Flash Studio shows ads; WaterH does not.

### Which is updated more often, WaterH or Flash Studio?

WaterH ships an update monthly, and Flash Studio weekly. Most recently, WaterH was updated on October 24, 2026 and Flash Studio on October 24, 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.*