# Reaction Speed Reflex Trainer vs The Impossible Safe

The clearest difference is rating: Reaction Speed Reflex Trainer at 4.6 against The Impossible Safe's 3.0. Reaction Speed Reflex Trainer also leads on review sentiment (53% vs 34%) and ratings volume (1.4K vs 175). The Impossible Safe's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Reaction Speed Reflex Trainer sells 4 in-app purchases, starting at $0.99 per 7 days. The Impossible Safe asks for nothing beyond the download.

Reaction Speed Reflex Trainer holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Reaction Speed Reflex Trainer has 1.4K ratings behind it against 175, so its average is the more settled of the two. Written reviews point the same way: 53% of Reaction Speed Reflex Trainer's written reviews are positive against 34% of The Impossible Safe's.

Reaction Speed Reflex Trainer ships an update every 3 months, The Impossible Safe every 2 months. The most recent releases landed on September 28, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Reaction Speed Reflex Trainer | The Impossible Safe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.4K ratings)](https://appshunter.io/ios/app/reaction-speed-reflex-trainer/id1250540980/reviews)** | [3.0 (175 ratings)](https://appshunter.io/ios/app/the-impossible-safe-crack-it/id1573468310/reviews) |
| Number of ratings | **1.4K** | 175 |
| Positive reviews | **53.4% of reviews** | 34.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 27 MB | 2 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vicki Partridge](https://appshunter.io/developer/1114861973) | [Edvin Linden](https://appshunter.io/developer/1472363182) |

## What reviewers say

### Reaction Speed Reflex Trainer

[App page](https://appshunter.io/ios/app/reaction-speed-reflex-trainer/id1250540980)

Sharpen your reflexes and boost reaction speed with engaging game modes. Measure your reaction time to the millisecond, compete on global leaderboards, and track your progress. Ideal for improving focus, training reflexes, or simply for fun.

**Highlights:** Reaction time measurement, Multiple game modes, Global leaderboards, Progress tracking, Focus and reflex training

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $9.99 | per year |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 🚀 Helps improve reaction time
- 👍 Simple and straightforward
- 👍 Clean interface
- 👍 Useful for athletes and gamers

**What reviewers complain about**

- 🐛 Inaccurate timing and reaction time tracking
- 🔍 Excessive ads that interfere with gameplay
- 💰 Paid subscription required for full features
- 🐛 Crashes and bugs after purchasing ad-free version

**Reported bugs**

- Reaction time not updating correctly
- Crashes when trying to use paid features
- Ads continue to show even after purchasing ad-free version

**Requested features**

- Track personal best reaction time
- Add more game modes and challenges
- Improve ad placement and reduce interruptions


### The Impossible Safe

[App page](https://appshunter.io/ios/app/the-impossible-safe-crack-it/id1573468310)

Experience the thrill of a high-stakes heist by cracking a virtual safe against the clock. This game uses advanced haptic feedback to simulate the tactile experience of manipulating a lock, challenging your focus and nerve.

**Highlights:** Haptic feedback for realistic lock manipulation, 60-second time limit for each attempt, Global leaderboards for competitive play, Challenge friends to head-to-head contests, Immersive and tactile gameplay

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and entertaining
- 🚫 No ads
- 📶 No wifi needed
- ⏱️ Quick completion times
- 💡 Uses haptic feedback

**What reviewers complain about**

- 🤔 Confusing gameplay
- ❓ No instructions
- ⏳ Too much time pressure
- 😩 Too difficult/impossible
- 👎 Not interactive

**Reported bugs**

- Doesn't open
- Doesn't work
- No game

**Requested features**

- Different lock skins
- No time limitations
- Lock picking version
- Practice mode without timer
- More attempts/time


## Frequently asked questions

### Is Reaction Speed Reflex Trainer free?

Reaction Speed Reflex Trainer is free to download, with in-app purchases available.

### Is The Impossible Safe free?

The Impossible Safe is free to download, with no in-app purchases.

### Which has better reviews, Reaction Speed Reflex Trainer or The Impossible Safe?

Reaction Speed Reflex Trainer is rated higher. Reaction Speed Reflex Trainer averages 4.6 out of 5 from 1.4K ratings, while The Impossible Safe averages 3.0 from 175 ratings.

### Do Reaction Speed Reflex Trainer or The Impossible Safe have ads?

Reaction Speed Reflex Trainer shows ads; The Impossible Safe does not.

### Which is updated more often, Reaction Speed Reflex Trainer or The Impossible Safe?

Reaction Speed Reflex Trainer ships an update every 3 months, and The Impossible Safe every 2 months. Most recently, Reaction Speed Reflex Trainer was updated on September 28, 2026 and The Impossible Safe on September 17, 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.*