Comparison

InterFasting vs Diet Diary DaDa

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

Head to head
About

InterFasting

This app offers a smart fasting tracker and timer to help users achieve their intermittent fasting goals without extreme dieting. It provides AI-powered personalized schedules, a food scanner for calorie and macro tracking, and detailed insights into the body's stages during a fast.

Highlights
  • AI Schedule Recommendations
  • AI Calorie Counter & Food Scanner
  • Fasting Timer (16:8, 5:2, OMAD)
  • All-in-One Health Tracker
  • Hour-by-Hour Body Stages
  • Home Screen Widgets
  • Apple Health Integration
Features
Read full description

Ready to make intermittent fasting actually work? InterFasting is the smart fasting tracker and fasting timer that helps you stay consistent without extreme dieting. No more guessing, no complicated calorie counting — just smart tools that actually work. Why people choose InterFasting • AI Schedule Recommendations Get a personalized intermittent fasting plan based on your lifestyle — no more trial and error. • AI Calorie Counter & Food Scanner Just snap a photo of your meal. Instantly see calories and macros without manual logging. • The Easiest Fasting Timer Supports 16:8, 5:2, OMAD, and fully custom schedules. Smart alarms keep you on track. • 100% Free Customization + Ad-Free Experience Adjust your fasting windows freely and track everything in a clean, distraction-free interface. • All-in-One Health Tracker Monitor fasting hours, weight progress, meals, workouts, and water intake in one place. • Home Screen Widgets Check your fasting stage and countdown timer instantly from your home screen. • Hour-by-Hour Body Stages See what’s happening in your body during a fast (Ketosis, Autophagy, and more). • Visual Progress & Photo Diary Log meals and take progress photos to stay motivated by real results. Science-backed benefits of intermittent fasting Effective fat burning and weight loss Boosted autophagy and cellular repair Better blood sugar control Reduced inflammation Improved mental clarity and energy Perfect if you want to start intermittent fasting for the first time, stay consistent with a reliable tracker, or combine fasting with keto and healthy weight loss goals. Consistency is the key. InterFasting helps you build habits that last. Download now and start your transformation. *** Apple Health Integration *** Automatically syncs weight, steps, and workout data with the Apple Health app. ABOUT SUBSCRIPTIONS & PAYMENT • Payment will be charged to your Apple ID account at confirmation of purchase. • You can manage or cancel your subscription in your App Store Account Settings at any time. • Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Terms of Service: https://www.interfasting.app/service_en Privacy Policy: https://www.interfasting.app/privacy

About

Diet Diary DaDa

Features
Read full description

Diet Diary DaDa is a weight tracker with one job: record what you weigh. Nothing else. No calories, no meals, no photos, no endless settings. Open the app, pick a date, type your weight in kg, and you're done. One entry per day - saving the same date again simply replaces it, and future dates aren't allowed. Three charts, one scrolling screen - Bar chart of your last 20 days, color-coded by range with the value on every bar - Trend line for the last 30 days with your average marked; tap any point to see that day's date and weight - Distribution circle covering every record you have, with a legend for each range Your records Entries are grouped by year. Tap one to edit it, swipe or long-press to delete it, or clear them all at once. Moving to a new phone Copy your whole history to the clipboard as text, then paste it into DaDa on the new device to restore it. Restoring replaces the data already there. No account, no sign-in, no server. Everything stays on your phone and the app works completely offline. Free, supported by a banner ad.

Screenshots

InterFasting4 screens
Diet Diary DaDa3 screens

Verdict

The call

The clearest difference is in-app purchases: Diet Diary DaDa at none against InterFasting's 7. Diet Diary DaDa also leads on iOS requirement (15.1 vs 17.0). InterFasting's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. InterFasting sells 7 in-app purchases, starting at $3.99 per month. Diet Diary DaDa asks for nothing beyond the download.

UpkeepUpdate frequency

InterFasting ships an update every 4 days, Diet Diary DaDa every 3 weeks. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.

Scorecard3 real differences · 7 level
InterFasting versus Diet Diary DaDa: the parameters behind the verdict, then further details
ParameterInterFastingDiet Diary DaDa
PriceFreeFree
Rating4.8 (363 ratings) — better—
Positive reviews88.6% of reviews—
Number of ratings363 — better—
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size112 MB30 MB
Age rating4+4+
DeveloperLivietSeonggon Sim

In-app purchases

7 purchases

InterFasting

Subscriptions6
  • Intermittent Fasting Monthly$3.991 Month
  • Intermittent Fasting Monthly$6.991 Month
  • Intermittent Fasting Annual$14.991 Year
Show 3 more
  • Intermittent Fasting Annual$19.991 Year
  • Intermittent Fasting Annual$29.991 Year
  • Intermittent Fasting Annual$49.991 Year
One-time1
  • Premium User$12.99
None

Diet Diary DaDa

No in-app purchases

Questions

Is InterFasting free?
InterFasting is free to download, with in-app purchases available.
Is Diet Diary DaDa free?
Diet Diary DaDa is free to download, with no in-app purchases.
Do InterFasting or Diet Diary DaDa have ads?
Both InterFasting and Diet Diary DaDa show ads.
Which is updated more often, InterFasting or Diet Diary DaDa?
InterFasting ships an update every 4 days, and Diet Diary DaDa every 3 weeks. Most recently, InterFasting was updated on November 11, 2026 and Diet Diary DaDa on November 12, 2026.

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