Comparison

Rest AI vs RunReady

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

Head to head
About

Rest AI

Understand your body's hydration, stress, energy, and recovery with AI-powered facial scans. Get personalized wellness guidance without complex tracking. Simply scan your face to receive clear, actionable insights for better daily well-being.

Highlights
  • AI-powered facial scans
  • Personalized wellness insights
  • Hydration and stress tracking
  • Daily wellness guidance
  • Simple, non-invasive analysis
  • No complex data logging
Read full description

HOW TO USE REST AI: 1) Complete a quick profile so Rest AI can understand your baseline 2) Take a simple face scan: morning, midday, or night 3) Get personalized insights and daily wellness guidance powered by AI Rest AI helps you understand your hydration, stress, energy, recovery, and overall wellness through fast, non-invasive facial scans. With every scan, your recommendations get smarter and more personalized. We aren’t another complicated health tracker. Rest AI gives you clear, simple feedback so you can feel better throughout your day and night, without logging meals, tracking macros, or entering endless data. Just scan and go. Our goal is to empower you to feel more in control of your body with minimal effort and maximum clarity. You don’t need any expensive wearables or complicated devices. Rest AI works with your natural routine and adapts to your habits, not against them. If you have ideas or questions, please email us at restai.support@novabuild.ai NOTE: Rest AI does not provide medical advice. Insights and recommendations are for general wellness and should not replace professional medical guidance. *FACIAL SCANNING ANALYSIS RESULTS REQUIRE A SUBSCRIPTION. TERMS: https://www.novabuild.ai/restai/terms

About

RunReady

Get a daily running readiness score and personalized training recommendations based on your Apple Watch data. Understand your body's recovery and optimize your runs with accurate heart rate zones and training plans.

Highlights
  • Daily readiness score
  • Personalized run recommendations
  • Accurate heart rate zones
  • Automatic run analysis
  • Progress trends dashboard
  • Lock Screen widget
Read full description

Should I run hard today, easy, or not at all? RunReady answers every morning with a Readiness Score built from your Apple Watch HRV, resting heart rate, sleep and training load. You also get your run for today: type, duration, pace and heart rate range. YOUR MORNING Open RunReady and see your score in the ring. Tell the app how your legs feel: fresh, normal, tired, or no run today. Your recommendation follows, for example "Easy Steady Run, 40–60 min, pace 6:27–6:47, HR 119–133". One tap sends it to your Apple Watch as a workout with heart rate targets. MEASURED AGAINST YOU RunReady compares every value with your own last 60 days: • HRV: how well your nervous system recovered overnight • Resting heart rate during sleep: if it stays well above your average for several nights, RunReady marks it red and, if you like, sends a notification. • Sleep: duration and stages of last night • Load: your last 7 days relative to your usual training. Between 0.8 and 1.3 you are in the sweet spot. Tap a value in the ring to see it in detail: the last 30 nights with your normal range, your sleep stages or your training week. ZONES FROM YOUR DATA RunReady calculates your heart rate zones with the Karvonen method: from your highest measured heart rate of the last 12 months and your resting heart rate during sleep. Single measurement spikes don't count. Your Zone 2 fits your body. YOUR WEEKLY PLAN COUNTS Set which days are base, quality, long run or rest, and set your weekly distance goal. RunReady only suggests tempo and intervals when your score allows it. If you like, the app moves a quality session to a later day of the week. EVERY RUN WITH ITS READINESS Your runs arrive from Apple Health automatically, labeled by heart rate pattern: recovery, easy, base, long, tempo, intervals, fartlek and more. RunReady keeps that morning's readiness with every run and shows whether the run matched the recommendation. Plus zone distribution, heart rate with cardiac drift, pace every 200 m, every kilometre with pace, heart rate and cadence, and your effort rating from Apple Fitness. INSIGHTS • Readiness history over 30 days, 90 days or a year, with a second line to compare • What moves your score: your mornings after short nights, load jumps and long runs compared with all others • Pace at the same heart rate: if you run faster at the same pulse, your fitness grows. • Weekly distance with goal, monthly distance, pace, efficiency and cadence • Best efforts over 1 km, 5 km, 10 km and half marathon • Calendar with readiness or kilometres for every day YOUR YEAR FROM DAY ONE With one tap RunReady pulls up to 365 days from Apple Health and calculates their scores. Your history is there right away instead of after weeks of collecting. WIDGETS Readiness, recommendation and weekly plan come in small, medium and Lock Screen sizes, plus a large widget with everything together. See your score before you unlock your iPhone. LIGHT OR DARK RunReady follows your system or stays light or dark. YOUR DATA STAYS ON YOUR IPHONE RunReady reads from Apple Health and calculates on your device. No account, no cloud, no tracking. No subscription, no in-app purchases. RunReady needs an Apple Watch you wear at night. Without older data in Apple Health, the score needs about 7 days for reliable values. RunReady gives training guidance and does not replace medical advice.

Screenshots

Rest AI4 screens
RunReady4 screens

Verdict

The call

The clearest difference is review sentiment: Rest AI at 100% against RunReady's 0%. Rest AI also leads on price (Free vs $1.99) and update cadence (weekly vs monthly). RunReady's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement 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

Rest AI is free to download; RunReady costs $1.99 up front. Rest AI sells 2 in-app purchases, starting at $9.99 per month. RunReady asks for nothing beyond the download.

UpkeepUpdate frequency

Rest AI ships an update weekly, RunReady monthly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Rest AI versus RunReady: the parameters behind the verdict, then further details
ParameterRest AIRunReady
PriceFree — better$1.99
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings4 — better—
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhoneiPhone
Requires iOS17.0 — better18.6
Further details — not scored
Size6 MB4 MB
Age rating4+4+
DeveloperNovaBuild, Inc.Marvin Blome

Customer experience

Rest AI

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

RunReady

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

2 purchases

Rest AI

Subscriptions2
  • Premium Monthly$9.991 Month
  • Premium Annually3 Days trial$29.991 Year
None

RunReady

No in-app purchases

Questions

Is Rest AI free?
Rest AI is free to download, with in-app purchases available.
Is RunReady free?
RunReady costs $1.99, with no in-app purchases.
Do Rest AI or RunReady have ads?
Neither Rest AI nor RunReady shows ads.
Which is updated more often, Rest AI or RunReady?
Rest AI ships an update weekly, and RunReady monthly. Most recently, Rest AI was updated on October 30, 2026 and RunReady on November 5, 2026.

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