Comparison

Plainfast vs Luma

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

Head to head
About

Plainfast

Features
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Plainfast is the honest fasting timer. Start a 16:8, 18:6, 20:4 or OMAD fast in one tap and watch a calm dial count the hours. No sign-up quiz, no account, no ads. Open the app and the timer is the first thing you see. You do not answer fifty questions about your body first, and you do not lose your past fasts after a week. Every fast you log stays in your history, free, for as long as you use Plainfast. WHAT IT COVERS • Intermittent fasting with 16:8, 18:6, 20:4 and OMAD presets, plus 24, 36 and 48 hour plans, or a custom target that suits your day • Longer fasts: the clock keeps running past your goal, so 24, 36 and 72 hour fasts are timed hour by hour • Water fasts and extended fasts logged the same way as your daily window • A 10-phase timeline of what typically happens as a fast goes on: glycogen use, the shift toward fat burning, ketosis. Each stage shows how sure the science is and the study behind it, and autophagy is marked plainly as not yet known in people KEY FEATURES • A plain dial that shows time elapsed, time left and your current phase at a glance • Live Activity and Dynamic Island, so your fast keeps time on the lock screen • Home screen widgets • Reminders for the start and end of each fast • Full history, streaks and stats, all free • A note on every fast, written when you end it or later from History • Weight log, plus mood and glucose logs after each fast • Weight sync with Apple Health (Premium) • Export your fasting history as a CSV file • Dark mode that is designed, not just inverted WHO IT IS FOR • Beginners trying 16:8 who want a timer, not a program • OMAD and 20:4 regulars who log every day • Anyone who does an occasional 36 or 72 hour fast • Women and men who would rather track quietly than take a quiz first PRICING Free: the timer, all presets, the phase timeline, full history, streaks, stats, logs, widgets and reminders. Premium (monthly, yearly or a one-time lifetime unlock) adds unlimited custom presets, adding past fasts, mood and glucose correlation charts, and weight sync with Apple Health. Plainfast is a timer and a log, not medical advice. If you are pregnant, diabetic, take medication or plan a fast longer than 24 hours, talk to your doctor first. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Privacy Policy: https://trifoiltrailblazer.com/privacy-policy Terms of Use: https://trifoiltrailblazer.com/terms-of-service

About

Luma

Features
Read full description

Luma is your AI skin coach. Scan your face in seconds and get a personalized routine based on 150+ biomarkers. Track your glow score, build daily habits, and see visible results in 4 weeks. Features: • AI skin analysis with detailed scoring • Personalized AM/PM routines updated weekly • Daily habit tracking and streaks • Before/after photo timeline • Product recommendations across budgets Luma adapts to your skin type, goals, and routine — no guesswork. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Plainfast4 screens
Luma4 screens

Verdict

The call

The clearest difference is device support: Luma at 3 against Plainfast's 1. Luma also leads on iOS requirement (15.1 vs 17.6). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Plainfast sells 3 in-app purchases, starting at $6.99 per month and Luma sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 4 level
Plainfast versus Luma: the parameters behind the verdict, then further details
ParameterPlainfastLuma
PriceFreeFree
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size51 MB51 MB
Age rating4+4+
DeveloperIvan TerekhinSebastian Caldarola

In-app purchases

3 purchases

Plainfast

Subscriptions2
  • Premium Monthly$6.991 Month
  • Premium Yearly3 Days trial$19.991 Year
One-time1
  • Premium Lifetime$29.99
2 purchases

Luma

Subscriptions2
  • Premium7 Days trial$9.997 Days
  • Premium Yearly$39.991 Year

Questions

Is Plainfast free?
Plainfast is free to download, with in-app purchases available.
Is Luma free?
Luma is free to download, with in-app purchases available.
Do Plainfast or Luma have ads?
Neither Plainfast nor Luma shows ads.

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