iFast vs NutriDiary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iFast
This app helps you track your fasting periods and monitor your progress towards your health goals. It supports various popular fasting methods, including circadian rhythm fasting and intermittent fasting schedules.
- Track fasting periods
- Monitor progress
- Support for popular fasting types
- Circadian rhythm fasting
- Intermittent fasting schedules
- Custom prolonged fasts
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iFast is your all-in-one intermittent fasting and healthy-living companion, and it is about far more than a timer. FASTING, DONE RIGHT • Any protocol: 14:10, 16:8, 18:6, OMAD or a custom window • A live timer with metabolic zones so you can see what your body is doing • Streaks, history and gentle reminders that keep you consistent HOME SCREEN AND LOCK SCREEN WIDGETS • The medium widget puts your fast, water, steps and food at a glance • A live countdown to your goal, so you always know how long is left • A small size for your fast and streak, plus Lock Screen widgets on iOS 16 and later • Tap a row in the medium widget to jump straight to logging it A COACH IN YOUR POCKET • Ask Ember, your personal coach, about fasting, food or training • Grounded, personalized guidance based on your goals and your logs ACCOUNTABILITY CIRCLES • Get matched into a small group on the same journey • Encourage each other and stay on track together TRACK WHAT MATTERS • Weight, water, steps, workouts and body measurements • Snap a photo of your meal for instant calorie and macro estimates • Clean charts that turn your data into visible progress APPLE HEALTH • Two-way sync so all your health data stays in one place iFast Pro unlocks photo meal analysis, higher coach limits and more. iFast Pro is an auto-renewable subscription. Payment is charged to your Apple ID at confirmation of purchase. It renews automatically unless canceled at least 24 hours before the end of the period; manage or cancel in your App Store account settings. Terms of Use: https://manuongithub.github.io/FastTrackerPolicies/termsofuse.html Privacy Policy: https://manuongithub.github.io/FastTrackerPolicies/privacypolicy.html
NutriDiary
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NutriDiary is a smart nutrition app built for food tracking, personalized goals, and meaningful AI-powered insights. ACCURATE INSIGHTS START WITH RELIABLE DATA AI can see the chicken on your plate, but it can’t tell how much dressing is on your salad. That’s why NutriDiary doesn’t rely on photos to guess what you eat or estimate your calories. Choose foods from your library, scan product barcodes, or capture a nutrition label and let AI help you quickly enter the nutrition information. Not every food has a barcode. With NutriDiary, you can easily build your own personal food library using reliable nutrition data. KNOW YOUR TARGET. KNOW YOUR PROGRESS. NutriDiary can estimate your daily calorie needs based on your personal profile and help you set daily goals for calories, carbohydrates, protein, and fat. A clear nutrition dashboard shows how much you’ve consumed, how much remains, and how your daily intake compares with your goals. You can also track dietary fiber, sodium, and food-group variety for a broader view of your nutrition. AI DOESN’T GUESS YOUR NUTRITION. IT UNCOVERS WHAT YOU MIGHT HAVE MISSED. NutriDiary uses AI where it can provide meaningful value: analyzing the nutrition data you’ve actually recorded. Explore daily, 7-day, and 30-day nutrition trends, then use AI-powered analysis to uncover patterns and potential issues that may be difficult to notice on your own. Turn your nutrition history into insights that can help you better understand your eating habits over time. BUILD YOUR NUTRITION HISTORY ONCE. USE IT ANYWHERE. Your nutrition data belongs to you—not to your app. NutriDiary lets you export your food library and nutrition records as structured data for long-term storage and further analysis. Use your nutrition history with other tools, or take it to any AI you choose for additional analysis and long-term tracking. Your data should remain useful even when the tools around it change. USE THE AI YOU TRUST. In addition to the built-in AI service, advanced users can configure their own AI endpoint, API key, and model. AI will continue to evolve. Your nutrition history shouldn’t be locked to a single model. Choose the AI that works for you and keep getting new value from the data you’ve built over time. KEY FEATURES • Daily food and meal tracking • Calorie, carbohydrate, protein, and fat tracking • Dietary fiber and sodium tracking • Personalized calorie and macronutrient goals • Barcode scanning for packaged foods • AI-powered nutrition label capture • Personal and frequently used food libraries • Daily, 7-day, and 30-day nutrition trends • In-depth AI nutrition analysis and report history • Structured data export for food and nutrition records • Custom AI endpoint, API key, and model support • Optimized for iPhone and iPad • English and Chinese language support NutriDiary is more than a record of what you ate today. It’s a way to build a trusted nutrition history with reliable data, understand your goals and progress, and use AI to uncover what you might have missed. Track precisely. Keep your health personal. Disclaimer: Nutrition information and AI-generated insights provided by NutriDiary are intended for general wellness and dietary management purposes only. They do not constitute medical advice, diagnosis, or treatment. Please consult a qualified healthcare or nutrition professional for medical conditions or specific health concerns. End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: iFast at none against NutriDiary's 2. iFast also leads on update cadence (every 3 days vs every 10 days) and iOS requirement (15.1 vs 17.6). NutriDiary's advantage is ads (none vs shown). On price 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. NutriDiary sells 2 in-app purchases, starting at $5.99 per month. iFast asks for nothing beyond the download.
iFast ships an update every 3 days, NutriDiary every 10 days. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.
| Parameter | iFast | NutriDiary |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (22 ratings) — better | — |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 22 — better | — |
| Update frequency | Every 3 days — better | Every 10 days |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 62 MB | 15 MB |
| Age rating | 4+ | 12+ |
| Developer | Manu Mehrotra | 立元 顾 |
In-app purchases
iFast
No in-app purchases
NutriDiary
- Pro Monthly$5.991 Month
- Pro Yearly$39.991 Year









