Intermittent vs TrueFast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Intermittent
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Intermittent fasting works. Staying consistent is the hard part. Most people start IF motivated but quit within weeks. Not because fasting doesn't work - it does. They quit because tracking manually is tedious, they lose track of time, break fasts too early, or simply have no structure. Intermittent is the fasting timer that removes all of that friction. Simple timer. Smart notifications. Progress tracking. Everything you need to make IF effortless. HOW IT WORKS Choose Your Protocol Select from proven fasting schedules: 16:8, 18:6, 20:4, OMAD, 5:2, or create your own custom protocol. Set your eating window. Done. Start Your Fast One tap to start. The timer runs in the background. You get on with your day. Smart Notifications We notify you when your fast is complete and eating window opens. We remind you one hour before your eating window closes. You never lose track or accidentally break your fast early. Track Your Progress Every completed fast builds your streak. Your calendar fills up. You see consistency building. Weight trends (optional tracking) show the correlation between fasting and results. Simple Stats Average fast duration. Longest fast. Completion rate. Streak milestones. Everything you need to stay motivated and see your progress. WHAT YOU GET - Clean, elegant fasting timer for any protocol - Smart notifications at the right times - Streak tracking for accountability - Calendar view of your fasting pattern - Optional weight tracking with trend analysis - Stats on fasting consistency and duration - Unlimited protocol customization - Works completely offline WHO THIS IS FOR Anyone doing intermittent fasting who wants a simple, reliable timer. People who've tried IF before but couldn't stay consistent. Anyone looking for structure and accountability around their fasting practice. Both beginners learning IF and experienced fasters who need better tracking. WHY CONSISTENCY MATTERS Intermittent fasting works through metabolic adaptation. Your body needs consistent fasting windows to shift into fat burning, increase autophagy, improve insulin sensitivity, and deliver the benefits you're looking for. Random fasting - a 16-hour fast one day, eating all day the next, then an 18-hour fast a few days later - doesn't create adaptation. Consistency does. A timer gives you that consistency. You know when to eat. You know when to stop. You build the discipline that creates results. RESULTS TIMELINE Weeks 1-2: Building the habit, learning your rhythm Weeks 3-4: Hunger patterns adjust, fasting gets easier Weeks 5-8: Weight loss becomes consistent, energy improves Weeks 9+: Fasting is effortless, results are clear The key is making it through those first 3-4 weeks. That's where a timer makes the difference. Structure removes decision fatigue. Notifications prevent mistakes. Streaks create accountability. NO COMPLEXITY This isn't a meal planner. This isn't a calorie counter. This is a fasting timer. We do one thing and do it extremely well: help you fast consistently. Start your fast. Get notified when done. Track your progress. That's it. Simple. Clean. Effective. SUBSCRIPTION All features accessed through subscription. 3-day free trial included. Weekly ($4.99), monthly ($6.99), or annual ($49.99). Auto-renews unless turned off 24 hours before period ends. Manage in Account Settings. Privacy: https://sirca.io/intermittent/privacy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
TrueFast
Track your intermittent fasting journey with a clean, ad-free interface. Monitor your progress, set personalized goals, and access educational content. Offers seamless integration with Apple Watch and Lock Screen widgets for easy access.
- Fasting timer with elapsed and remaining time
- Saved goals for common fasting plans
- Schedules and reminders
- History calendar, streaks, and badges
- Lock Screen widgets and Apple Watch support
- Fasting phase education
- Local-first data storage
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TrueFast is a simple intermittent fasting tracker built to stay out of your way. Start a fast, follow your saved goal, check your progress from your iPhone or Apple Watch, and review your fasting history without ads, social features, or clutter. Core features are free: • Fasting timer with elapsed and remaining time • Saved goals for common fasting plans • Schedules and reminders • History calendar, streaks, and badges • Lock Screen widgets, Home Screen widgets, Live Activities, and Apple Watch support • Fasting phase education with clear wellness context • Local-first data storage TrueFast Pro adds optional power-user tools: • iCloud sync across devices • Weight tracking with Apple Health • Advanced charts • CSV export • Custom themes and app icons • All future Pro features TrueFast is intended for adults. Fasting may not be appropriate for children, teens, pregnant or breastfeeding people, people with a history of eating disorders, or people with certain medical conditions. Consult a qualified healthcare professional before fasting. TrueFast does not provide medical advice, diagnosis, or treatment. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://gettruefast.com/privacy-policy
Screenshots
Verdict
The clearest difference is iOS requirement: Intermittent at 16.0 against TrueFast's 18.0. 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. Intermittent sells 3 in-app purchases, starting at $4.99 per 7 days and TrueFast sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Intermittent | TrueFast |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 6 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 17+ |
| Developer | Sirca | Evan Mattson |
In-app purchases
Intermittent
- Intermittent Weekly3 Days trial$4.997 Days
- Intermittent Monthly3 Days trial$6.991 Month
- Intermittent Yearly$49.991 Year
TrueFast
- TrueFast Pro Monthly$2.991 Month
- TrueFast Pro Yearly$19.991 Year
- Buy Us a Coffee$1.99
- Power the Fast$4.99
- Super Supporter$9.99
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- TrueFast Pro (Lifetime)$29.99







