FastLyfe vs Fastly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FastLyfe
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FastLyfe: Fasting Tracker & Timer FastLyfe is an easy-to-use fasting tracker designed to help you stay consistent and build better habits. Track your fasts, follow popular fasting schedules, and monitor your progress over time—all in one simple app. Features: Fasting timer to track your sessions Popular protocols like 16:8, 18:6, and OMAD Custom fasting schedules Progress tracking and history Calendar view to see your consistency Clean and simple design FastLyfe is built for anyone looking to stay on track with intermittent fasting without distractions or unnecessary complexity.
Fastly
This app helps you track intermittent fasting with a clean interface, customizable plans, and motivational features. Monitor your body's response through different fasting zones and visualize progress with charts and widgets. Your data remains private, stored locally or optionally via iCloud.
- Customizable fasting plans (16:8, OMAD, etc.)
- Real-time circular timer and zone tracking
- Motivational streaks, badges, and calendar heatmap
- Weight tracking with trend visualization
- Home screen widgets and Live Activities
- Optional iCloud sync and CSV export
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Intermittent fasting, without the clutter. Fastly is a clean, private fasting timer built for people who want to stick to 16:8, OMAD, or any plan they choose — with beautiful widgets, real-time zone tracking, and zero ads or accounts. Start a fast in one tap. Watch your body move through five fasting zones — from catabolism to deep autophagy. Build streaks, earn badges, and see your progress in charts that actually make sense. FASTING, YOUR WAY • Pick from 16:8, 18:6, 20:4, OMAD, 5:2, or build a custom plan • Live circular timer with elapsed, remaining, and target • Edit past fasts or log a forgotten one manually • End a fast by voice with the Siri shortcut SEE YOUR BODY'S RESPONSE • Five fasting zones: Anabolic, Catabolic, Fat Burning, Ketosis, Autophagy • Clear guide explains what's happening at each stage • Gentle notifications when you enter a new zone STAY MOTIVATED • Streaks and weekly summaries • 20 unlockable badges for consistency and milestones • Calendar heatmap shows every fast at a glance • Full history with notes on each session TRACK YOUR WEIGHT • Log in kg or lbs in one tap • Visualize trends over weeks, months, or years • Combined timeline of fasts and weight changes WIDGETS + LIVE ACTIVITIES • Home Screen widgets in Small, Medium, and Lock Screen sizes • Live Activity keeps your fast visible on the Lock Screen and Dynamic Island • Real-time countdown and zone status — no need to open the app YOUR DATA STAYS YOURS • Optional iCloud sync across iPhone and iPad • No account, no ads, no tracking • CSV export anytime (Pro) FASTLY PRO Unlock the full experience: • Unlimited history (free tier shows last 30 days) • Widgets • Trend, Eating Window, Fasting Pattern, and Weight charts • 30-day and yearly insights • CSV export of all your data PRIVACY FIRST Your data lives on your device (and optionally your private iCloud). We don't collect, sell, or share anything. Ever. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://23apps.org/privacy/fastly
Screenshots
Verdict
The clearest difference is update cadence: FastLyfe at every 6 weeks against Fastly's every 3 months. FastLyfe also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support 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. FastLyfe sells 3 in-app purchases, starting at $5.99 per month and Fastly sells 1 in-app purchase, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.
FastLyfe ships an update every 6 weeks, Fastly every 3 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | FastLyfe | Fastly |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 31 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Cayden Williams | Tejas Patel |
In-app purchases
FastLyfe
- Monthly3 Days trial$5.991 Month
- Yearly$16.991 Year
- Lifetime Pro$29.99
Fastly
- Fastly Pro$2.991 Year









