Comparison

InterFasting vs AltitudeNowPro

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 helps users succeed with intermittent fasting through scientific and systematic management. It offers AI-powered schedule and calorie recommendations, a simple timer, and comprehensive tracking of fasting hours, meals, workouts, and water intake. Users can visualize progress and receive detailed reports to build healthy habits.

Highlights
  • AI fasting schedule recommendations
  • AI food calorie calculation
  • Intermittent fasting timer
  • Customizable fasting plans
  • All-in-one health tracking
  • Fasting analysis and reports
  • Home screen widget
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

AltitudeNowPro

Features
Read full description

AltitudeNow is a focused barometric altimeter and elevation-session logger built around one job: showing how your altitude changes as you move. LIVE ALTITUDE, WITHOUT GPS • Relative altitude from the device's built-in barometric pressure sensor • Live atmospheric pressure in hPa or inHg • A real-time altitude chart while a session is recording • Motion access is used for the barometric sensor; your recorded sessions stay on-device RECORD CLIMBS AND ELEVATION CHANGES • Start and stop named altitude sessions • Review minimum altitude, maximum altitude, elevation gain, duration, and readings • Free users can browse their 3 most recent sessions • Premium unlocks unlimited session history, detailed session charts, CSV export, and calibration BUILT FOR MOUNTAIN USE • Pick from a built-in Japanese mountain reference list when naming or calibrating a session • Save favorite mountains for faster session setup • Compare recorded elevation changes with familiar peak references • Apply a calibration offset when you know the reference altitude PRIVATE BY DESIGN • No account • No advertising or analytics SDKs • No developer-operated cloud sync • No GPS required for the core altitude recorder • Delete the app and there is no AltitudeNow cloud copy left behind PREMIUM — ONE-TIME PURCHASE • Unlimited session history • Detailed altitude charts for every saved session • CSV export • Custom calibration offset No subscription. REQUIREMENTS Requires iOS 17 or later and a supported phone with a built-in barometric pressure sensor. Devices without that sensor show a clear unsupported-device screen instead of fake readings. AltitudeNow is an informational elevation tool, not a certified navigation, aviation, emergency, or safety instrument.

Screenshots

InterFasting4 screens
AltitudeNowPro4 screens

Verdict

The call

The clearest difference is ads: AltitudeNowPro at none against InterFasting's shown. InterFasting's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. InterFasting sells 5 in-app purchases, starting at $3.99 per month and AltitudeNowPro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard3 real differences · 7 level
InterFasting versus AltitudeNowPro: the parameters behind the verdict, then further details
ParameterInterFastingAltitudeNowPro
PriceFreeFree
Rating4.8 (361 ratings) — better—
Positive reviews88.6% of reviews—
Number of ratings361 — better—
Update frequencyEvery 4 days—
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size99 MB1 MB
Age rating4+4+
DeveloperLivietHao Sun

In-app purchases

5 purchases

InterFasting

Subscriptions4
  • Intermittent Fasting Monthly$3.991 Month
  • Intermittent Fasting Monthly$6.991 Month
  • Intermittent Fasting Annual$12.991 Year
Show 1 more
  • Intermittent Fasting Annual$34.991 Year
One-time1
  • Premium User$12.99
1 purchases

AltitudeNowPro

One-time1
  • AltitudeNow Premium$2.99

Questions

Is InterFasting free?
InterFasting is free to download, with in-app purchases available.
Is AltitudeNowPro free?
AltitudeNowPro is free to download, with in-app purchases available.
Do InterFasting or AltitudeNowPro have ads?
InterFasting shows ads; AltitudeNowPro does not.

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