Comparison

Stellar Sort vs ReactionTraining

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Relaxing sorting puzzle gameplay
  • Colorful planet-themed pieces
  • Hundreds of levels
  • Unique Black Hole mechanic
  • Undo and Hint tools
  • 3-star challenges
Features
Read full description

**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.**

About

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.

Highlights
  • 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
Features
Read full description

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

Stellar Sort4 screens
ReactionTraining4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Stellar Sort ships an update fortnightly, ReactionTraining every 5 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
Stellar Sort versus ReactionTraining: the parameters behind the verdict, then further details
ParameterStellar SortReactionTraining
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
Update frequencyFortnightlyEvery 5 days — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size102 MB26 MB
Age rating4+4+
DeveloperMariyan PetrovZrindy LLC

In-app purchases

None

Stellar Sort

No in-app purchases

3 purchases

ReactionTraining

Subscriptions2
  • Monthly Premium$0.991 Month
  • Annual Premium$2.991 Year
One-time1
  • Lifetime Premium$8.99

Questions

Is Stellar Sort free?
Stellar Sort is free to download, with no in-app purchases.
Is ReactionTraining free?
ReactionTraining is free to download, with in-app purchases available.
Which has better reviews, Stellar Sort or ReactionTraining?
Stellar Sort and ReactionTraining are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Stellar Sort or ReactionTraining have ads?
Both Stellar Sort and ReactionTraining show ads.
Which is updated more often, Stellar Sort or ReactionTraining?
Stellar Sort ships an update fortnightly, and ReactionTraining every 5 days. Most recently, Stellar Sort was updated on October 21, 2026 and ReactionTraining on October 10, 2026.

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