Half Marathon vs 1SecondLap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Half Marathon
Train for your first 21K run with a comprehensive 12-week program. This app offers audio coaching, interval planning, and motivational tips to build strength and endurance. Track your progress, earn badges, and share achievements with friends.
- 12-week running program
- Audio coach guidance
- Run/walk strategy
- Integrated music player
- Progress tracking and sharing
- Motivational quotes
- GPS and distance tracking
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Enhance your strength, endurance, and stamina, train for your 21k run with the best half marathon training app! 21K Run Trainer will help you become the runner you’ve always wanted to be! This is the easiest, most comprehensive and most successful half marathon training plan for you to train for your first 21K. DETAILED 12 WEEK RUNNING PROGRAM Our 12 week half marathon training plan will literally take you to the finish line of your first 21k run. 21K Run Trainer is a simple and powerful 1/2 marathon training app that will guide you through the whole journey with encouragement, useful tips, step- by- step interval planning, and so much more. Complete your half marathon by using the run/walk strategy and get the advice you need! MOTIVATIONAL AUDIO COACHING This half marathon training program starts off easy and slowly increases the runs. The real fascination of this 12 week half marathon training and running app is that it keeps you motivated and encouraged all the time. Keep your inner self in tune with your body by listening to audio coach guidance, read daily motivational quotes and enjoy great half marathon training plan! INTEGRATED MUSIC PLAYER Not only that you will get the motivation and information you need by using this incredible half marathon training program, but you will also be able to enjoy your favorite tracks while running and training! The running app features a built-in music player that lets you listen to your music during exercises. The audio coach gently blends in when needed, plus you get intuitive on-screen controls that make the experience even better. TRACK & SHARE YOUR PROGRESS Experience the pure enjoyment of running by having the best half marathon training app! If you need a half marathon training guide to reach your 21K goals easily, then 21K Run Trainer is exactly what you need. The app keeps track of your runs and achievements, it awards you with badges and gives you the opportunity to share your progress with your friends and family on any social media. Share your 12 weeks half marathon training log by Facebook, Twitter, or email, and don’t forget to invite your friends to join you! 21K RUN TRAINER FEATURES: - Reach your 21k run goals in 12 weeks - Follow detailed half marathon training schedule - Uses alternating walks & runs - Audio coach to guide & motivate you - Repeat workouts whenever you want - Includes a music player to listen to music while exercising - Built-in GPS & distance tracking - Receive cool badges for your progress - Tracks & logs each time you do a new run - Share achievements with friends - Fully customizable settings - Supports both phone & tablet devices - Smooth on-screen controls - Integrated health kit for a workout track - FREE to use half marathon training plan app --- How to train for a half marathon and fully enjoy it? It’s simple! Get 21K Run Trainer for FREE today and just believe in yourself! Please seek medical advice prior to commencement. We currently offer two auto-renewing subscriptions with $0.99/week billed as a yearly $49.99 without a trail. & 7-day free trial thereafter weekly $1.49 billed as a six month $37.99. By subscribing you get unlimited access and unlock all Training program, Transformation tracker, Diet recipes & 30 Day meal plan. Subscriptions are set to automatically renew within the 24-hour period prior to the subscription end date. You can cancel your subscription at any moment in your iTunes account settings but refunds will not be provided for any unused portion of the terms. App integrated with the Health kit, so you can find your activities data in the Health App. Contact our client support via rumbleent@hotmail.com Privacy Policy: http://rumbleenterprise.com/policy_runing.html and Terms of Service: http://rumbleenterprise.com/terms_of_use_running.html
1SecondLap
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: 1SecondLap at none against Half Marathon's 7. 1SecondLap also leads on update cadence (daily vs every 3 months). Half Marathon's advantage is iOS requirement (13.4 vs 15.0). On price, ads and device support 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. Half Marathon sells 7 in-app purchases, starting at $0.99 per 7 days. 1SecondLap asks for nothing beyond the download.
Half Marathon ships an update every 3 months, 1SecondLap daily. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.
| Parameter | Half Marathon | 1SecondLap |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (254 ratings) — better | — |
| Positive reviews | 18.8% of reviews | — |
| Number of ratings | 254 — better | — |
| Update frequency | Every 3 months | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPod, Apple Watch |
| Requires iOS | 13.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 65 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Rumble | DOCUEX LIMITED |
Bugs and requests
Half Marathon
Reported bugs
16 issues- 🐛 Daily activity stops when switching apps
- 🐛 App pauses during phone calls and forgets to resume
- 🐛 GPS not functioning, reporting 0.0 meters pace
- 🐛 Premium member cannot change training level
- 🐛 Music playback issues
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- 🐛 Incorrect distance tracking
- 🐛 Duplicate workout entries in logs
- 🐛 Workouts randomly end and restart
- 🐛 No notification for workout end
- 🐛 Treadmill setting does not record distance
- 🐛 No option to edit distance post-workout
- 🐛 App time does not reflect actual elapsed time
- 🐛 App crashes when trying to adjust audio settings
- 🐛 Inability to cancel premium subscription
- 🐛 Stats default to metric without user choice
- 🐛 Inability to customize training period by setting race date
Requested features
5 requests- 💡 Better looking badges
- 💡 Option to set race date for customized training
- 💡 Ability to edit distance after workout
- 💡 Fix settings page scrolling issue
- 💡 Option to set preferred food types for meal plan
1SecondLap
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Half Marathon
- Weekly Subscription$0.997 Days
- 21k Run Monthly New3 Days trial$1.991 Month
- Weekly Subscription$1.997 Days
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- 21K Run Trainer (Weekly)3 Days trial$2.997 Days
- Half Marathon Workout Plan7 Days trial$29.991 Year
- Half marathon program7 Days trial$37.996 Months
- 21k Run Life Time$39.99
1SecondLap
No in-app purchases
Questions
Is Half Marathon free?
Is 1SecondLap free?
Do Half Marathon or 1SecondLap have ads?
Which is updated more often, Half Marathon or 1SecondLap?
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