Comparison

Runnify vs FastDown

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

Head to head
About

Runnify

Features
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Get ready to achieve your running goals with Runnify! Discover the running app designed for runners of all levels. Run safely, consistently, and keep improving. Whether you’re looking to start running, complete your first 5K, or improve your marathon times, Runnify has the perfect training plan for you offering personalized week-by-week guidance. Personalized plans for all levels - My First 5K Want to learn how to run your first 5 kilometers properly? This plan is designed to help you complete this distance safely and confidently—even if you’ve never run before. We also offer routines for runners aiming to improve their 5K time by optimizing endurance, speed, and technique. - My First 10K Running 10 kilometers is an exciting challenge. This plan helps you build the endurance, strength, and pace needed to conquer 10K. Whether it’s your first time or you’re looking for exercises to run faster, we’ll guide you to peak performance, tailored to your level and personal goals. - My First Half Marathon 21K is a tough but rewarding goal that requires the right preparation. This plan is designed to train you for a half marathon, helping you develop the endurance, speed, and mindset to complete the distance. If you’ve already run one, our advanced training sessions and custom plans will help you beat your time and boost your performance. - My First Marathon Running a marathon (42 kilometers) is an epic achievement. This plan supports you through every stage—from running faster to recovery strategies and pacing. Whether your goal is simply to cross the finish line or beat your personal best, Runnify will help you train for a marathon with confidence and efficiency. Already running these distances? Let’s improve your times! If your goal is to run faster, we’ve got the running app you need. Just enter your current personal record and we’ll help you beat it with a personalized training plan tailored to your needs and fitness level. Every session includes: - Warm-up before running – Stretches and preventive exercises to prepare your body. - Main workout – Runner-focused exercises and routines tailored to your goals. - Cool-down – Stretching after your run to help you recover and improve flexibility. Connect with your favorite device ⌚ Sync Runnify with your running watch—Apple Watch, Garmin, Coros, Polar, Fitbit, or any other brand via Strava. Track every detail of your workouts: distance, pace, map route, calories burned, heart rate, and more. Training plans endorsed by Daniel Andújar Our plans are based on scientific methodology and the experience of a professional coach. We don’t use algorithms or AI—just a human, personalized approach to help you run properly and progress safely. Benefits of running with Runnify! - Learn the technique to run more efficiently. - Enjoy a tailored running training plan to help you get out there and hit your goals. - Improve your performance and discover the amazing benefits of running. Download Runnify and start your journey toward a better version of yourself today. Your next goal is just one stride away! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FastDown

Features
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A fasting countdown. Pick a window - 12 to 48 hours between meals, or any length you set - and hold the line. Nothing is gated. Every window is pickable from day one; the ladder (12→18→24→36→48) marks progress, it doesn't lock it. Carry a window to term and it earns its badge and feeds a daily streak. THE CLOCK RUNS FROM YOUR LAST MEAL, NOT FROM THE TAP. You eat, you remember the app an hour later. FastDown asks — one tap says when you actually started, and the timeline, badge and streak inherit the truth instead of the error. WORKS WITHOUT BEING LOOKED AT. Start your usual window from a Home Screen widget, a notification button, or a Siri phrase. A Live Activity keeps the countdown on your lock screen, with a FINISH button once you're past term. Reaching term never stops the clock - overtime counts up, and the hours count. IT LEARNS YOU, AND IT ASKS. Start at the same time five days running and it offers that time as your daily reminder. Skip every Sunday and it offers to keep the nudge quiet on Sundays. Give up 16-hour windows around hour nine three times and it offers a word of encouragement at hour eight-thirty. Every finding is offered once, your refusal is remembered, and nothing ever changes without your yes. A RECORD YOU CAN TRUST. Every window is logged, finished or not. Entries can be corrected, past fasts added by hand, and a hand-logged fast is worth exactly as much as a timed one. Deleting is the only irreversible act in the app, so it gets an undo. WHAT YOUR BODY IS DOING. A nine-stage timeline tracks the physiology of a fast — blood sugar, the glycogen tap, the fat switch, ketosis — hour by hour, wherever you are in the window. General information, not medical advice. PRIVATE BY ARCHITECTURE. No account. Your record never leaves your phone. Anonymous usage counts help improve the app — nothing identifies you, and the switch to turn them off is in the open, on the main screen. This is a timer, not medical advice. Fasting isn't for everyone - check with your doctor, drink water, and stop the moment you feel unwell.

Screenshots

Runnify4 screens
FastDown4 screens

Verdict

The call

The clearest difference is in-app purchases: FastDown at none against Runnify's 12. FastDown also leads on ads (none vs shown). Runnify's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and update cadence 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. Runnify sells 11 in-app purchases, starting at $8.99 per month. FastDown asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. Both last shipped on October 5, 2026.

Scorecard4 real differences · 2 level
Runnify versus FastDown: the parameters behind the verdict, then further details
ParameterRunnifyFastDown
PriceFreeFree
Update frequencyEvery 4 daysEvery 4 days
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size122 MB2 MB
Age rating17+4+
DeveloperRUNNIFY PROJECTS, S.L.Lobsag Paredes

In-app purchases

11 purchases

Runnify

Subscriptions11
  • Runnify Monthly$8.991 Month
  • Runnify Monthly 25 Subs$12.991 Month
  • Runnify Monthly 10 Subs$14.991 Month
Show 8 more
  • Runnify Monthly Subscription$17.991 Month
  • Runnify Quarterly 50 Subs$22.993 Months
  • Runnify Quarterly 25 Subs$34.993 Months
  • Runnify Quarterly 10 Subs$39.993 Months
  • Runnify Quarterly Subscription$44.993 Months
  • Runnify Annual$79.991 Year
  • Runnify Annual 25 Subs$119.991 Year
  • Runnify Annual Subscription2 variants$149.991 Year
None

FastDown

No in-app purchases

Questions

Is Runnify free?
Runnify is free to download, with in-app purchases available.
Is FastDown free?
FastDown is free to download, with no in-app purchases.
Do Runnify or FastDown have ads?
Runnify shows ads; FastDown does not.
Which is updated more often, Runnify or FastDown?
Runnify ships an update every 4 days, and FastDown every 4 days. Most recently, Runnify was updated on October 5, 2026 and FastDown on October 5, 2026.

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