Instinct vs Reaction Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Instinct
Enhance your reaction time, reflexes, and cognitive speed with engaging, fast-paced games. Track your progress with detailed graphs, compete with friends on global leaderboards, and unlock achievements. Designed for quick daily mental agility training.
- Reaction Speed game
- Turbo Tap challenge
- Aim Training mode
- Unlockable awards
- Game Center leaderboards
- Progress tracking graphs
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Instinct improves your reaction time, reflexes, speed, and awareness through engaging, fast-paced cognitive games designed for all skill levels. Track your progress with interactive graphs, compete with friends, and climb the global leaderboards to claim the top spot. Designed for quick daily sessions, Instinct is built on scientifically inspired exercises for mental agility. Features: • Reaction Speed - Tap as quickly as possible when the background changes • Turbo Tap - Tap rapidly to score as many points as you can in 10 seconds • Aim Training - Tap targets before they disappear, miss one, and you lose a life • Unlockable awards that will challenge your skills, can you earn them all? (Plus one hidden award) • Game Center integration for seamless leaderboards and achievements • No ads or distractions
Reaction Lab
Measure and improve your response speed with a suite of scientifically-inspired tests. Track progress over time with detailed analytics and gain insights into your performance in various situations. Designed for focus and privacy, all data stays on your device.
- Multiple reaction time test types
- Visual, audio, and haptic cues
- Grip-release and motion-based tests
- Dual-task and fatigue tracking
- Detailed session summaries and trend charts
- On-device data privacy
- Offline functionality
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Reaction Lab is a fast, accurate reaction-time testing suite built to help you measure and understand how quickly you respond in different situations. Whether you’re training for sports, improving focus, or tracking performance over time, Reaction Lab gives you clean, scientifically-inspired tests and easy-to-read analytics—right on your iPhone. Test Your Reaction Time in Multiple Ways Reaction time isn’t just one thing. Reaction Lab includes multiple test types designed to measure different pathways and skills: • Simple Visual Tap – Tap as soon as a visual stimulus appears • Choice Reaction – Respond to directional or on-screen prompts with speed and accuracy • Audio Reaction – React to sound cues for “eyes-off” testing • Haptic Reaction – React to vibration cues with no visuals or audio • Grip-Release (Inhibitory Control) – Hold, then release as fast as possible when prompted • Motion Reaction – React by moving the phone (tilt/lift/rotate) • Dual-Task Under Load – React while performing a secondary task to measure real-world performance • Fatigue Drift – Track how reaction time changes over a continuous timed session • Anticipation vs Reaction – Detect premature responses and impulse control patterns • Asymmetry Testing – Compare dominant vs non-dominant performance Track Progress Over Time Reaction Lab automatically saves your sessions and turns raw reaction data into meaningful insights: • Session summaries: median, average, best, worst, variability • Accuracy metrics: false starts, errors, timeouts • Trend charts by test type over 7 / 30 / 90 days • Per-session breakdowns across every trial Clean, Focused, Tool-Like Design Reaction Lab is built to be simple, fast, and distraction-free: • Large touch targets and high-contrast test screens • Clear trial progress indicators • Instant feedback on mistakes or false starts • Smooth navigation between tests, history, insights, and settings Fully On-Device and Private Your data stays on your device. • No accounts • No cloud sync required • No tracking • Works offline If you’ve ever wondered how your reaction time changes with training, fatigue, stress, or consistency—Reaction Lab gives you the tools to measure it. Download Reaction Lab and start testing. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://anthonyharveyapps.com/privacy-policy-reaction-lab
Screenshots
Verdict
The clearest difference is in-app purchases: Instinct at none against Reaction Lab's 2. Instinct also leads on update cadence (every 5 days vs every 7 months). 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. Reaction Lab sells 2 in-app purchases, starting at $1.99 per month. Instinct asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Instinct against 5.0 for Reaction Lab. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
Instinct ships an update every 5 days, Reaction Lab every 7 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.
| Parameter | Instinct | Reaction Lab |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 5 days — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.2 | 18.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Jasper Cheyney | Anthony Harvey |
Customer experience
Instinct
Reaction Lab
In-app purchases
Instinct
No in-app purchases
Reaction Lab
- React Fast Monthly3 Days trial$1.991 Month
- React Fast Yearly3 Days trial$4.991 Year









