Comparison

1SecondLap vs Scroll Stronger

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

Head to head
About

1SecondLap

Features
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One app for your whole workout — and your data never leaves your phone. 1SecondLap combines a GPS run tracker, interval workout timer, Bluetooth gym-machine console and reflex trainer in one free app. No account, no ads, no subscription. RUN OUTDOORS • Distance, pace and route with automatic per-km splits announced out loud • Ghost runs: race your best previous run on the same route and hear how far ahead or behind you are • Spoken pace coach — pick a target pace and get "speed up / slow down" cues • Distance goals with voice announcements, route maps and GPX export • Keeps tracking with the screen locked; Live Activity on the lock screen INTERVAL WORKOUTS • Reps, work and rest with voice countdowns — Tabata, HIIT, EMOM, boxing templates plus your own presets • ERG mode: with a compatible smart trainer, the app sets the trainer's resistance for every work and rest interval automatically GYM MACHINES • Connect Bluetooth bikes, treadmills, rowers and cross-trainers (FTMS/CSC) • Live cadence, power, speed, stroke rate and heart rate from a strap • Heart-rate zones with spoken zone cues and per-session time-in-zone PROGRESS • Activity heatmap, weekly volume and training load from your heart-rate data • Pace, power and reaction-time trends with personal records and streaks • Brain + body: see how your reaction time changes right after exercise • Workouts save to Apple Health APPLE WATCH • Stopwatch, timer and interval workouts on your wrist PRIVACY • Everything is stored on your device. No sign-up, no tracking, no analytics.

About

Scroll Stronger

Features
Read full description

Scroll Stronger turns screen time into a reason to move. Instead of just blocking your apps, Scroll Stronger makes you earn the time back — with real exercise, not a fake "wait 30 seconds" screen. HOW IT WORKS • Choose the apps you want to control. • Do a set of push-ups, squats, jumping jacks, or another exercise — your phone's camera (powered by on-device AI) counts your real reps as you move. • Every rep adds minutes to your Time Bank. • Spend that time in your blocked apps. When it runs out, they lock again until you earn more. MORE WAYS TO EARN TIME • Strength & cardio: push-ups, squats, jumping jacks, burpees, pull-ups, and more — all counted automatically by your camera. • Stretching & balance: planks, wall sits, yoga poses — hold the position, earn time by the second. • Steps: hit your daily step goal to add extra minutes, no camera needed. BUILT TO ACTUALLY WORK • Adjustable difficulty (1–5) for every exercise, so the app scales with your fitness level. • A streak calendar to keep you consistent day to day. • Clear stats on time earned vs. app usage, so you can see the habit forming. PRIVACY FIRST Pose detection runs entirely on your device — your camera feed is never uploaded or stored. Try it free for 14 days, no card required. Then continue with a simple monthly or annual subscription. Scroll less. Move more. Get Stronger. Terms & Conditions (EULA): https://www.scrollstronger.app/en/terms Privacy Policy: https://www.scrollstronger.app/en/privacy

Screenshots

1SecondLap4 screens
Scroll Stronger4 screens

Verdict

The call

The clearest difference is in-app purchases: 1SecondLap at none against Scroll Stronger's 2. 1SecondLap also leads on update cadence (daily vs every 4 days) and device support (3 vs 1). On price, ads and iOS requirement 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. Scroll Stronger sells 2 in-app purchases, starting at $5.99 per month. 1SecondLap asks for nothing beyond the download.

UpkeepUpdate frequency

1SecondLap ships an update daily, Scroll Stronger every 4 days. Both last shipped on October 1, 2026.

Scorecard3 real differences Ā· 3 level
1SecondLap versus Scroll Stronger: the parameters behind the verdict, then further details
Parameter1SecondLapScroll Stronger
PriceFreeFree
Update frequencyDaily — betterEvery 4 days
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size9 MB66 MB
Age rating4+4+
DeveloperDOCUEX LIMITEDAdrian Munoz

In-app purchases

None

1SecondLap

No in-app purchases

2 purchases

Scroll Stronger

Subscriptions2
  • Monthly$5.991 Month
  • Annual$24.991 Year

Questions

Is 1SecondLap free?
1SecondLap is free to download, with no in-app purchases.
Is Scroll Stronger free?
Scroll Stronger is free to download, with in-app purchases available.
Do 1SecondLap or Scroll Stronger have ads?
Neither 1SecondLap nor Scroll Stronger shows ads.
Which is updated more often, 1SecondLap or Scroll Stronger?
1SecondLap ships an update daily, and Scroll Stronger every 4 days. Most recently, 1SecondLap was updated on October 1, 2026 and Scroll Stronger on October 1, 2026.

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