Comparison

Reaction Time vs Stroop Training

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

Head to head
About

Reaction Time

Features
Read full description

Find out how fast you react when a visual cue appears, a sound plays, or your device vibrates without warning. Explore 34 focused tests, training activities, and fast arcade games that combine reaction time, quick choices, precision, memory, timing, and taps per second in short sessions you can replay to chase your own best. Every completed session gives you clear results, so you can understand your current performance and come back to challenge it again. TEST YOUR REACTIONS • Included without an unlock: visual and choice reaction tests • Separate access required: audio, haptic, Go / No-Go, peripheral vision, aim tap, and CPS speed. Watch one rewarded ad to unlock one selected test for 24 hours, or unlock it permanently with Pro • Results such as reaction time, accuracy, mistakes, hits, and taps per second PRACTICE WITH FOCUSED TRAINING • Included without an unlock: Schulte Table, Stroop, and start lights • The other 9 activities require separate access: direction choice, number sorting, moving targets, precision tapping, memory flash, rule switching, visual tracking, distractor targets, and rhythm tapping. Watch one rewarded ad to unlock one selected activity for 24 hours, or unlock it permanently with Pro • Short sessions built around timing, focus, memory, precision, and hand-eye coordination PLAY AND CHASE HIGH SCORES • Included without an unlock: DiskDash and CornerCross • The other 12 arcade games, including SquarePass, require separate access. Watch one rewarded ad to unlock one selected game for 24 hours, or unlock it permanently with Pro • Simple controls, quick restarts, and different timing patterns to master PRO PROGRESS FEATURES • The one-time Pro in-app purchase is required for full statistics, including personal bests, recent results, all-time activity history, and performance trends • Pro is required for Game Center leaderboards Seven activities are included without an unlock. For the other 27, each completed rewarded ad unlocks one selected activity for 24 hours. The separate one-time Pro in-app purchase permanently unlocks all 34 activities, removes ads, and includes full statistics and Game Center leaderboards. No subscription.

About

Stroop Training

Features
Read full description

Stroop is a cognitive inhibition training and research tool based on the classic Stroop effect. Three Training Modes • Color Word Mode: Classic Stroop with color words in mismatched ink • Natural Word Mode (Semantic Stroop): Animal and plant names in semantically clashing colors • Emotional Stroop Mode: Negative, neutral, and positive emotional words for attentional bias measurement Clinical Mode Track multiple participants independently. Each session tagged with a participant ID — ideal for clinicians, researchers, and educators managing multiple trainees. Custom Emotional Word Banks Create personalized word banks with negative, neutral, and positive categories. Built-in word sets in 11 languages. Research-Grade Data Export BIDS-compatible ZIP export. Grouped by participant with dedicated TSV data file + JSON sidecar. 15 columns: onset, duration, session_id, trial_type, stimulus, accuracy, reaction_time, and more. Ready for SPSS, R, and Python analysis. Professional Analysis Dashboard Stroop Interference (SI), Facilitation (SF), Delta Score (Cohen's d), Emotional Bias Score (EBS), trend charts, inhibition scores. • 11 languages • Practice + test dual-phase • iCloud sync • Encrypted import/export • Daily reminders

Screenshots

Reaction Time4 screens
Stroop Training4 screens

Verdict

The call

The clearest difference is in-app purchases: Stroop Training at none against Reaction Time's 1. Stroop Training also leads on iOS requirement (15.0 vs 18.0). Reaction Time's advantage is update cadence (weekly vs every 2 weeks). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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

UpkeepUpdate frequency

Reaction Time ships an update weekly, Stroop Training every 2 weeks. The most recent releases landed on September 9, 2026 and September 13, 2026 respectively.

Scorecard3 real differences Ā· 3 level
Reaction Time versus Stroop Training: the parameters behind the verdict, then further details
ParameterReaction TimeStroop Training
PriceFreeFree
Update frequencyWeekly — betterEvery 2 weeks
AdsYesYes
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size20 MB28 MB
Age rating4+9+
DeveloperSongyu Lič±Ŗ 陈

In-app purchases

1 purchases

Reaction Time

One-time1
  • Lifetime Pass$0.99
None

Stroop Training

No in-app purchases

Questions

Is Reaction Time free?
Reaction Time is free to download, with in-app purchases available.
Is Stroop Training free?
Stroop Training is free to download, with no in-app purchases.
Do Reaction Time or Stroop Training have ads?
Both Reaction Time and Stroop Training show ads.
Which is updated more often, Reaction Time or Stroop Training?
Reaction Time ships an update weekly, and Stroop Training every 2 weeks. Most recently, Reaction Time was updated on September 9, 2026 and Stroop Training on September 13, 2026.

Other comparisons