Zuva vs RunForm
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Zuva
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Most habit apps track everything. Zuva tracks what matters: the small daily habits that research links to a longer, healthier life. BUILT ON SCIENCE, NOT WILLPOWER Zuva guides you through a 4-week protocol that introduces a few habits at a time β morning sunlight, daily movement, an earlier last meal, a consistent sleep schedule. You unlock the next week by being consistent, not by rushing ahead. After week 4, the protocol adapts to you. YOUR BIOLOGICAL AGE, FRONT AND CENTER Zuva Age estimates your biological age from your habits and Apple Health data β and shows it improving as you stay consistent. Progress you can feel, and a number you can watch move. AN AI COACH THAT KNOWS YOUR DAY Ask anything about your protocol, your sleep, your streak. The coach answers with your real data in front of it β and checks in every week with what worked and what to fix. HABITS THAT VERIFY THEMSELVES Connect Apple Health and Zuva automatically confirms your steps, workouts, sleep and mindful minutes. Less tapping, more living. WIND DOWN, NOT DOOMSCROLL Evening wind-down mode and app blocking help you protect your sleep from your phone. Your screen time drops; your sleep improves. EVERYTHING ELSE YOU NEED β’ Fasting timer with Live Activity on your lock screen β’ Streaks, badges and 30-day challenges β’ Daily 1-minute micro-lessons that explain the why behind every habit β’ Journal with on-device dictation and AI prompts β’ Weekly reports, trends and health insights β’ Home Screen widgets and an Apple Watch app β’ Partner accountability β share your protocol with someone who keeps you honest β’ iCloud sync and full privacy: your health data stays on your device ZUVA PRO The first protocol week is free, forever. Zuva Pro unlocks the full protocol, the AI coach, biological age tracking, app blocking, challenges and more. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://www.one4studio.com/zuva/terms Privacy Policy: https://www.one4studio.com/zuva/privacy Start today. Your future self is counting on you. Zuva is for general wellness and education only. It is not a medical device and does not provide medical advice, diagnosis or treatment. Always seek the advice of your doctor or another qualified health professional alongside using this app, and before making any medical decisions or changes to your health routine.
RunForm
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Stop guessing. Start understanding your running form. Why do some runs feel effortless and others don't? RunForm reveals the two things that actually explain it β no charts to decode, no data overload. Just two clear numbers that show whether you're getting fitter and running smoother: β Heart4Speed β This is our running engine (heart) efficiency. Heart4Speed shows how much speed you generate for every heartbeat. It combines aerobic fitness and running economy into a single, easy-to-understand number. β Track fitness improvements over time β See how efficiently your body converts effort into movement In simple terms: are you getting more out of every beat of your heart? β SmoothOperator β This is your running smoothness and movement efficiency. Every step you take sends energy in two directions: forward (useful) and upward (wasted). SmoothOperator measures how much of that energy actually drives you forward. β Improve running form and reduce wasted energy β Run smoother, not harder Itβs a direct view into how efficiently you move with every stride. Built for real runners. RunForm is designed to make complex biomechanics simple and useful: β Clear, focused metrics you can trust β No clutter - just actionable insights β Track progress across runs and over time β Turn data into better running RunForm helps you answer the questions that matter: β Am I becoming more efficient? β Is my form improving? β Am I wasting energy as I fatigue? Works with your existing data. Connect with Apple Health and start analysing your runs instantly β no extra devices or setup required. RunForm doesnβt just track your runs. It helps you understand them β so you can improve with purpose.
Screenshots
Verdict
The clearest difference is in-app purchases: RunForm at none against Zuva's 4. RunForm also leads on iOS requirement (18.0 vs 26.0). Zuva's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Zuva sells 4 in-app purchases, starting at $4.99 per 7 days. RunForm asks for nothing beyond the download.
Zuva ships an update every 4 days, RunForm every 2 weeks. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.
| Parameter | Zuva | RunForm |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days β better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, Apple Watch β better | iPhone |
| Requires iOS | 26.0 | 18.0 β better |
| Further details β not scored | ||
| Size | 45 MB | 152 MB |
| Age rating | 4+ | 17+ |
| Developer | VUK ANDRIC PR STUDIO ZA GRAFICKI DIZAJN I IZRADU VEB SAJTOVA One4Studio CUPRIJA | Paul Grayson |
In-app purchases
Zuva
- Zuva Weekly$4.997 Days
- Zuva Yearly7 Days trial$49.991 Year
- Zuva Lifetime$99.99
- Zuva Lifetime$149.99
RunForm
No in-app purchases









