5K Run vs Simby
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
5K Run
This app guides beginners from inactivity to running a 5K with a flexible, adaptive training plan. It offers audio cues during runs and integrates with HealthKit to track progress and Apple Watch activity.
- Adaptive 5K training plan
- Voice trainer for run/walk intervals
- Flexible workout scheduling
- HealthKit integration
- Motivation and progress tracking
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5K RUN is the easiest way to get you from couch potato to 5k. Our training plan will help you keep motivated and give your best in every workout. Don't give up, you can do it! 5K PLAN The training plan is design to help you keep motivated. It will let you know when you need to take a break and when it's time for another run. Run whenever you want, you don't need to set up a schedule of specific days for running, we all have busy days, or it's raining outside, or we're just tired. That's why our training plan adapts to you, giving you a time window to complete your workouts. Take your training to the next level! VOICE TRAINER During the runs, listen to your music and the voice trainier will tell you when it's time for you to run or walk. Set your goal and work to get there in a healthy way. HEALTHKIT INTEGRATION Run 5K integrates nicely with HealthKit, meaning that all your workout data will be available for you inside Run 5K and the Apple Health App. On top of that, all the races you save using Run 5K will contribute to filling the Activity rings on your Apple Watch. Isn't that cool?
Simby
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Simby is the calm, all-in-one tracker for your baby's first years — feeding, diapers, sleep, growth and health, beautifully organized and always a tap away. Whether it's a 3 a.m. feed or a pediatrician visit, Simby helps you capture what matters and see the patterns behind it. FEEDING • Breastfeeding with left/right timers • Bottles and solids • Pumping sessions and a milk stash tracker DAILY CARE • Diapers, sleep and water intake • Walks, play, tummy time, bath and teeth brushing GROWTH & HEALTH • Weight, height and temperature with clear charts • Symptoms, medications and doctor visits • Vaccination schedule tailored to your country (US, Canada, Europe and more) with reminders MILESTONES & MEMORIES • Track first smiles, steps and words on a beautiful timeline • Save photos and special moments GUIDANCE WHEN YOU NEED IT • AI-powered specialists for sleep, feeding, health, development and parenting • Fast, personalized answers to everyday questions (AI guidance is informational and does not replace your pediatrician) CALM YOUR BABY • Built-in soothing sounds and lullabies for easier sleep MADE FOR FAMILIES • Share your baby's profile with your partner in real time • Export data as PDF/CSV for your pediatrician • Available in 6 languages • Private by design — your family's data stays yours SIMBY PRO Unlock unlimited AI specialists, full history, data export, memories and sharing. • Monthly or annual subscription; auto-renews unless cancelled 24h before the period ends — manage anytime in Settings Simby is an informational and organizational tool. It is not a medical device and does not provide medical advice, diagnosis or treatment. Always consult a qualified pediatrician for medical concerns. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://legal.simbyapp.com/
Screenshots
Verdict
The clearest difference is iOS requirement: Simby at 15.1 against 5K Run's 17.0. On price, update cadence, ads and in-app purchases 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. 5K Run sells 1 one-off in-app purchase and Simby sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
5K Run ships an update every 10 days, Simby every 3 weeks. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.
| Parameter | 5K Run | Simby |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (2.2K ratings) — better | — |
| Positive reviews | 24.3% of reviews | — |
| Number of ratings | 2.2K — better | — |
| Update frequency | Every 10 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 25 MB | 68 MB |
| Age rating | 4+ | 12+ |
| Developer | Carlos Fernandez Mayor | VESELA NIKOLAEVA MARINOVA |
Bugs and requests
5K Run
Reported bugs
3 issues- App crashes and loses user progress
- Inconsistent tracking of distance and pace
- Issues with treadmill workouts
Requested features
4 requests- Ability to manually adjust training program
- More detailed workout information
- Integration with other fitness apps
- Audio cues for run/walk transitions
Simby
Not enough reviews yet to summarise bugs or requests.
In-app purchases
5K Run
- Plan de entrenamiento 5K$4.99
Simby
- Simby Premium Monthly$4.991 Month
- Simby Premium Annual7 Days trial$39.991 Year









