Comparison

StroopTest vs SynapseGym

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

Head to head
About

StroopTest

This app presents a classic psychology test where you identify the color of a word, measuring your reaction time. It offers multilingual support and visualizes your performance over time with graphs.

Highlights
  • Color-word association test
  • Reaction time measurement
  • Performance graphing
  • Multilingual support
  • Classic psychology experiment
Features
Read full description

When you read a word about a color your brain immediately things of the meaning. In this test it asks to select the color of the word. The time of your reaction will be measured and shown in the graph. Available in English, French, Spanish, German and Dutch.

About

SynapseGym

Features
Read full description

Most brain games just hand you a score. SynapseGym shows you something more useful: where your mind is actually sharp, where it slips, and exactly what to train next. A REAL COGNITIVE PROFILE Take a short check and see yourself across six core skills — working memory, attention, processing speed, flexibility, impulse control and planning. No vague number. A clear picture of your strengths and your blind spots. TRAIN WHAT ACTUALLY HOLDS YOU BACK SynapseGym finds your weakest skill and builds a short daily session around it. No random games — focused practice aimed at the one thing that moves the needle for you. SEE REAL, MEASURABLE PROGRESS Re-check every couple of weeks and watch the numbers move. Track your reaction time, follow your streak, and learn the hours when your mind is at its sharpest. GROUNDED IN REAL SCIENCE The exercises are built on established cognitive tasks — Stroop, N-Back, Go/No-Go, digit span and more — turned into quick, sharp sessions that feel like play, not homework. MORE THAN GAMES A sharper mind needs a calmer one. Built-in meditation, gratitude journaling and habit tools help you stay focused and steady, every day. Leaderboards and achievements keep you coming back. 66 EXERCISES — NEVER THE SAME WORKOUT TWICE • Mental math, arithmetic drills and number sequences • Digit span, sequence memory and episodic recall • Stroop, Flanker, Go/No-Go and vigilance for attention • Single and dual N-Back for working memory • Reaction time, processing speed and visual tracking • Trail making, task switching and card sorting • Anagrams, verbal fluency and mental rotation NO ADS. EVER. 38 exercises are free. Premium unlocks all 66 — monthly, yearly, or a one-time lifetime purchase. Train a few minutes a day. See your mind get measurably sharper. SynapseGym is a training and self-assessment tool — not a medical device or a diagnosis. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

StroopTest4 screens
SynapseGym4 screens

Verdict

The call

The clearest difference is price: SynapseGym at Free against StroopTest's $1.99. SynapseGym also leads on update cadence (every 2 weeks vs every 8 months). StroopTest's advantage is in-app purchases (none vs 3) and device support (4 vs 2). On 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

SynapseGym is free to download; StroopTest costs $1.99 up front. SynapseGym sells 3 in-app purchases, starting at $7.99 per month. StroopTest asks for nothing beyond the download.

UpkeepUpdate frequency

StroopTest ships an update every 8 months, SynapseGym every 2 weeks. The most recent releases landed on October 8, 2026 and October 26, 2026 respectively.

Scorecard5 real differences · 4 level
StroopTest versus SynapseGym: the parameters behind the verdict, then further details
ParameterStroopTestSynapseGym
Price$1.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 8 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad
Requires iOS11.0 — better17.6
Further details — not scored
Size36 MB69 MB
Age rating4+4+
DeveloperYellow RidersJonas Hoettler

In-app purchases

None

StroopTest

No in-app purchases

3 purchases

SynapseGym

Subscriptions2
  • SynapseGym (monthly)$7.991 Month
  • SynapseGym Premium (yearly)$44.991 Year
One-time1
  • SynapseGym Lifetime$99.99

Questions

Is StroopTest free?
StroopTest costs $1.99, with no in-app purchases.
Is SynapseGym free?
SynapseGym is free to download, with in-app purchases available.
Do StroopTest or SynapseGym have ads?
Neither StroopTest nor SynapseGym shows ads.
Which is updated more often, StroopTest or SynapseGym?
StroopTest ships an update every 8 months, and SynapseGym every 2 weeks. Most recently, StroopTest was updated on October 8, 2026 and SynapseGym on October 26, 2026.

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