Comparison

Milestone Strength vs Reaction Lab

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

Head to head
About

Milestone Strength

Achieve your health and fitness goals with a personalized plan. This application provides a structured approach to help you reach your objectives.

Highlights
  • Personalized fitness plans
  • Goal achievement tracking
  • Health and fitness focus
  • Structured approach
Features
Read full description

Download the Milestone Strength app. This app will let you see your plan designed to help you achieve your health and fitness goals.

About

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.

Highlights
  • 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
Features
Read full description

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

Milestone Strength4 screens
Reaction Lab4 screens

Verdict

The call

The clearest difference is rating: Reaction Lab at 5.0 against Milestone Strength's 4.1. Reaction Lab also leads on update cadence (every 7 months vs every 21 months). Milestone Strength's advantage is ratings volume (15 vs 2) and iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and monetization model 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. Milestone Strength sells 1 one-off in-app purchase and Reaction Lab sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Reaction Lab holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Milestone Strength has 15 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Milestone Strength ships an update every 21 months, Reaction Lab every 7 months. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 6 level
Milestone Strength versus Reaction Lab: the parameters behind the verdict, then further details
ParameterMilestone StrengthReaction Lab
PriceFreeFree
Rating4.1 (15 ratings)5.0 (2 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings15 — better2
Update frequencyEvery 21 monthsEvery 7 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size20 MB22 MB
Age rating4+4+
DeveloperLayne FletcherAnthony Harvey

Customer experience

Milestone Strength

All ratings15 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews8 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Reaction Lab

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Milestone Strength

One-time1
  • Custom Training and Nutrition$449.99
2 purchases

Reaction Lab

Subscriptions2
  • React Fast Monthly3 Days trial$1.991 Month
  • React Fast Yearly3 Days trial$4.991 Year

Questions

Is Milestone Strength free?
Milestone Strength is free to download, with in-app purchases available.
Is Reaction Lab free?
Reaction Lab is free to download, with in-app purchases available.
Which has better reviews, Milestone Strength or Reaction Lab?
Reaction Lab is rated higher. Milestone Strength averages 4.1 out of 5 from 15 ratings, while Reaction Lab averages 5.0 from 2 ratings.
Do Milestone Strength or Reaction Lab have ads?
Neither Milestone Strength nor Reaction Lab shows ads.
Which is updated more often, Milestone Strength or Reaction Lab?
Milestone Strength ships an update every 21 months, and Reaction Lab every 7 months. Most recently, Milestone Strength was updated on October 25, 2026 and Reaction Lab on October 12, 2026.

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