Streak Fast vs Fastly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Streak Fast
This app helps you track your intermittent fasting journey with a visual calendar that fills in with each completed fast. Monitor your streaks, view weekly progress, and access a timer that runs even when the app is closed. It prioritizes user privacy with no account creation or ads.
- Visual fasting calendar
- Streak and progress tracking
- Offline functionality
- No account or ads required
- Support for multiple fasting styles
- Mood and weight tracking
- Calendar sync with iPhone Calendar
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Streak Fast is a quiet, beautiful way to track your intermittent fasting. Every fast you complete fills a square on your calendar. The more you fast, the more your year fills in. Watch your streak grow. See your best weeks. Spot your rough ones. And do it all without signing up for anything, giving away your email, or wading through ads. Your data stays on your phone. It syncs across your Apple devices through iCloud — the same way your notes and photos do. We never see it. We couldn't if we tried. WHAT MAKES IT DIFFERENT • No account to create. No password to remember. Just open the app and go. • No ads. No trackers. No pop-ups. • Works completely offline. Your logs are always there. • Looks beautiful on iPhone — pure black and white, nothing extra. WHAT IT DOES • A calendar that fills in with every fast you complete • Current streak and longest streak at a glance • A timer that keeps running even when you close the app • Helpful nudges at milestones — 4, 8, 12, 16, and 20 hours in • Support for every popular fasting style — 12:12, 14:10, 16:8, 18:6, 20:4, OMAD, and 5:2 • One-tap logging with quick hour buttons • Mood tracking during your fast • Weight tracking with a clean trend line • Set a weight goal and watch your progress • A Sunday weekly recap of how your week went • Calendar color themes — Classic is free, more with Pro • Optional calendar sync — your completed fasts can show up in your iPhone Calendar • Export your fasting history to CSV • Achievements you actually earn • A daily morning quote to start your fast strong YOUR PRIVACY • No sign-up, no email, no account • No ads, no analytics, no trackers • Your data lives in your private iCloud — same as your photos • Delete the app and your iCloud data is still yours • Syncs across all your Apple devices automatically STREAK FAST PRO • $4.99 a month or $29.99 a year • 3-day free trial on the yearly plan • Unlocks nine premium calendar themes • Unlocks weight trend insights and the home weight-trend card • Unlocks your full fasting and weight history (free shows the last 7 days) • Restore purchases on any new device in one tap • Cancel anytime in Settings — the free features stay forever One calendar. Every fast. Nothing else. Subscription auto-renews at the price shown unless cancelled at least 24 hours before the current period ends. Manage or cancel anytime in your App Store Settings. Terms of Use: https://www.guinto.tech/terms-of-use Privacy Policy: https://www.guinto.tech/privacy-policy
Fastly
This app provides a clean and distraction-free timer for intermittent fasting. It tracks your fasting periods in real-time, offers various popular fasting plans, and automatically monitors fasting phases like fat burning and ketosis. View your history with clear statistics and receive smart reminders.
- Clean fasting timer with real-time tracking
- Multiple intermittent fasting plans
- Automatic fasting phase tracking
- Fasting history with statistics
- Smart reminders for goals
- Minimalist interface
- Dark mode support
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Fastly is a clean, private fasting timer for 16:8, 18:6, OMAD, and custom schedules—without ads, accounts, or distractions. Start a fast with one tap, adjust your start or end time when needed, and see your elapsed time, remaining time, and planned finish at a glance. Fastly keeps the experience focused while giving you the tools you need to understand your routine and track your progress. FOLLOW YOUR FAST See estimated fasting phases based on your elapsed fasting time, including digestion, fat burning, ketosis, and autophagy. Upcoming phase markers make it easy to see what comes next during your fast. TRACK YOUR PROGRESS Review your complete fasting history through clear statistics, charts, and progress insights. Set weight and body fat goals, and optionally connect Apple Health to keep your measurements organized. STAY ON TRACK EVERYWHERE Follow your fasting status from your iPhone, Apple Watch, Home Screen widgets, and complications. Smart reminders help you stay aware of fasting goals and eating windows without unnecessary interruptions. KEY FEATURES • Real-time fasting timer with elapsed and remaining time • Planned fasting end time displayed at a glance • 14:10, 16:8, 18:6, 20:4, OMAD, and custom plans • Estimated fasting phases for digestion, fat burning, ketosis, and autophagy • Upcoming fasting phase markers • Complete fasting history with statistics and charts • Weight and body fat goals with progress benchmarks • Apple Health integration for weight and body fat • Apple Watch app and complications • Home Screen widgets for quick progress checks • Smart fasting and eating-window reminders • Optional private iCloud synchronization • Dark mode and a clean, focused interface PRIVATE BY DESIGN No ads. No third-party analytics. No developer data collection. Your fasting and health information stays on your devices and, when optional synchronization is enabled, in your private iCloud account. IMPORTANT NOTE Fasting phases are estimates based on elapsed time and can vary from person to person. Fastly is intended for general wellness and fasting tracking only. It does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before making medical or dietary decisions.
Screenshots
Verdict
The clearest difference is rating: Fastly at 4.8 against Streak Fast's 2.0. Fastly also leads on ratings volume (96 vs 1) and iOS requirement (17.6 vs 26.4). On price, update cadence, 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
Both are free to download. Streak Fast sells 2 in-app purchases, starting at $2.99 per month and Fastly sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Fastly holds the better App Store score, 4.8 against 2.0. That said, the two scores are not equally well evidenced: Fastly has 96 ratings behind it against 1, so its average is the more settled of the two.
Streak Fast ships an update every 9 days, Fastly every 10 days. Both last shipped on October 28, 2026.
| Parameter | Streak Fast | Fastly |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 4.8 (96 ratings) — better |
| Positive reviews | — | 94.1% of reviews |
| Number of ratings | 1 | 96 — better |
| Update frequency | Every 9 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 26.4 | 17.6 — better |
| Further details — not scored | ||
| Size | 5 MB | 9 MB |
| Age rating | 4+ | 12+ |
| Developer | Guinto Limited | Collweb LLC |
In-app purchases
Streak Fast
- Monthly Pro Plan$2.991 Month
- Yearly Pro Plan$17.991 Year
Fastly
- Coffee$1.99
- Lunch$4.99
- Become a Supporter$4.99
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- Dinner$9.99








