# Quandify vs Reaction Time Test

The clearest difference is update cadence: Reaction Time Test at every 8 days against Quandify's every 3 weeks. Quandify's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Quandify ships an update every 3 weeks, Reaction Time Test every 8 days. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Quandify | Reaction Time Test |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 64 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Quandify AB](https://appshunter.io/developer/1422730207) | [Jinwan Kim](https://appshunter.io/developer/1446513824) |

## What reviewers say

### Quandify

[App page](https://appshunter.io/ios/app/quandify/id1662883477)

Monitor your home's water usage and prevent damage with this app. It allows you to manage connected devices, track consumption, detect leaks, and remotely shut off your water supply for enhanced safety.

**Highlights:** Water damage prevention, Track water consumption, Detect water leaks, Remote water shut-off, Device management

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

**In-app purchases:** none


### Reaction Time Test

[App page](https://appshunter.io/ios/app/reaction-time-test-millis/id6805464656)

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

**In-app purchases:** none


## Frequently asked questions

### Is Quandify free?

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

### Is Reaction Time Test free?

Reaction Time Test is free to download, with no in-app purchases.

### Do Quandify or Reaction Time Test have ads?

Neither Quandify nor Reaction Time Test shows ads.

### Which is updated more often, Quandify or Reaction Time Test?

Quandify ships an update every 3 weeks, and Reaction Time Test every 8 days. Most recently, Quandify was updated on October 17, 2026 and Reaction Time Test on October 4, 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.*