Stellar Sort vs ReactionTraining
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Stellar Sort
Engage in a relaxing logic puzzle game set among the stars. Move colorful planets between tubes to match sets and restore order to the galaxy. Hundreds of levels offer increasing challenges with unique mechanics and helpful tools.
- Relaxing sorting puzzle gameplay
- Colorful planet-themed pieces
- Hundreds of levels
- Unique Black Hole mechanic
- Undo and Hint tools
- 3-star challenges
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**A relaxing sorting puzzle — among the stars.** Move colorful planets between tubes, match each set, and bring order back to the galaxy. Stellar Sort takes the satisfying logic of classic sorting puzzles and gives it a cosmic twist. Every level is easy to understand, but finding the right sequence of moves can take careful planning. ### SIMPLE TO PLAY Move planets between tubes and group matching colors together. Complete the level when every planet is perfectly sorted. ### A COSMIC TWIST These aren't ordinary sorting pieces. Explore a colorful galaxy filled with planets, glowing effects, and the mysterious Black Hole — a special mechanic that can completely change your solution. ### PUZZLES THAT GROW WITH YOU Start with straightforward challenges and progress through hundreds of increasingly tricky puzzles designed to test your logic without turning the experience into a race. ### GET A LITTLE HELP Made a move you regret? Undo it. Stuck on a difficult puzzle? Use a Hint and keep going. ### CHASE THE PERFECT SOLUTION Complete each level and aim for 3 stars by finding smarter, more efficient solutions. **STELLAR SORT FEATURES** • Relaxing sorting puzzle gameplay • Colorful planet-themed pieces • Hundreds of levels • Unique Black Hole mechanic • Undo and Hint tools • 3-star challenges • Simple controls • Clean, satisfying cosmic presentation Whether you have a few minutes or want to settle in for a longer puzzle session, Stellar Sort offers an easy way to relax while keeping your mind engaged. **Sort the planets. Solve the puzzle. Master the galaxy.**
ReactionTraining
Measure your visual reaction time with this app. It presents a green signal after a random delay, prompting you to tap as fast as possible. Track your progress over time and compare your results with others.
- Measures visual reaction time
- Five-attempt average and best time
- Session history and progress charts
- Reaction-time tiers and progress gauge
- Comparison with benchmark statistics
- Friend records and goals
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ReactionTraining Start with a 3-round first try. Then choose 1, 3, 5, or 7 rounds for round-based games. Key Features - Session history and line charts for progress - Reaction-time tiers and a progress gauge, and comparison with Human Benchmark statistics and cited public results - Friend records and goals, plus source and video links Premium unlocks full history and detailed analysis, the complete tier guide, and friend goals. Monthly and annual plans renew automatically until canceled; lifetime access is a one-time purchase. Localized prices appear in the app, and Restore Purchases is available. Test and friend data stay on your device, and no account is required. Public-figure results are reference values, not a scientific or official esports ranking. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Stellar Sort at none against ReactionTraining's 3. Stellar Sort also leads on iOS requirement (15.0 vs 17.0). ReactionTraining's advantage is update cadence (every 5 days vs fortnightly). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ReactionTraining sells 3 in-app purchases, starting at $0.99 per month. Stellar Sort asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Stellar Sort against 5.0 for ReactionTraining. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Stellar Sort ships an update fortnightly, ReactionTraining every 5 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.
| Parameter | Stellar Sort | ReactionTraining |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 102 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Mariyan Petrov | Zrindy LLC |
In-app purchases
Stellar Sort
No in-app purchases
ReactionTraining
- Monthly Premium$0.991 Month
- Annual Premium$2.991 Year
- Lifetime Premium$8.99









