# Reaction Time vs Deduce Together

The clearest difference is review sentiment: Reaction Time at 68% against Deduce Together's 21%. Reaction Time also leads on in-app purchases (none vs 1). Deduce Together's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Deduce Together sells 1 one-off in-app purchase. Reaction Time asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 30, 2026.

## The numbers

| Metric | Reaction Time | Deduce Together |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/reaction-time-tap-test/id1580161727/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **68.1% of reviews** | 20.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 60 MB | 26 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Osawa Shunsuke](https://appshunter.io/developer/477431394) | [PushForward](https://appshunter.io/developer/1789462125) |

## What reviewers say

### Reaction Time

[App page](https://appshunter.io/ios/app/reaction-time-tap-test/id1580161727)

Test and train your reflexes with various game modes. Compete globally in periodic rankings to become the world champion. Ideal for improving reaction speed for emergencies.

**Highlights:** One-shot reflex games, Random appearance challenges, 3 consecutive reflex tests, Global player rankings, Periodic ranking resets, Reflex training for emergencies

**Features:** Vision Pro support

**In-app purchases:** none


### Deduce Together

[App page](https://appshunter.io/ios/app/deduce-together/id6740307857)

Engage in a multiplayer deduction game where you ask AI questions to uncover answers. Compete with friends or play solo, with customizable settings and cross-platform play.

**Highlights:** AI-powered questioning, Multiplayer and solo modes, Cross-platform play, Private and public rooms, Customizable game settings, Create original questions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 製品版 | $5.99 | one-time |


## Frequently asked questions

### Is Reaction Time free?

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

### Is Deduce Together free?

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

### Do Reaction Time or Deduce Together have ads?

Both Reaction Time and Deduce Together show ads.

### Which is updated more often, Reaction Time or Deduce Together?

Reaction Time ships an update fortnightly, and Deduce Together fortnightly. Most recently, Reaction Time was updated on October 30, 2026 and Deduce Together on October 30, 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.*