Comparison

CaliFit vs FastingWindow

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

Head to head
About

CaliFit

Features
Read full description

LevelUp Calisthenics is a skill-based training log that helps you build real strength with clear progressions, simple workouts, and visual momentum. Train the fundamentals or chase advanced goals like handstands, L-sits, muscle-ups, and levers. Each skill is broken into practical steps, so you always know what to work on next. Log your sessions, track consistency, and watch your progress build over time. Key Features: Skill Progressions: Follow structured steps from beginner basics to elite goals. Workout Sessions: Build and run workouts that match your current level and equipment. Progress Tracking: See completion, streaks, and improvements across your training. Clean, Fast UI: Designed for quick logging during real workouts. Made for Bodyweight Training: Focused on calisthenics, not generic gym templates. Whether you’re starting from zero or refining advanced skills, LevelUp Calisthenics keeps your training organized, measurable, and motivating. Note: Always consult a physician before starting a new fitness program.dding accurate screenshots of your app on the newest devices can help you represent the app's user experience. Keep in mind that we'll use these screenshots for all display sizes and localizations. Screenshots are only required for iOS apps, and only the first 3 will be used on the app installation sheets.

About

FastingWindow

This app offers a straightforward method for tracking intermittent fasting. It visualizes your fasting progress with a live ring and details the five metabolic stages your body goes through. Understand your body's response during fasting with clear explanations.

Highlights
  • Simple fasting tracking
  • Live progress ring
  • Five metabolic stage explanations
  • No account required
  • No subscription needed
  • Real-time progress monitoring
Features
Read full description

FastingWindow is the cleanest, simplest way to track intermittent fasting — no account, no subscription, no noise. Pick a schedule (16:8 or 12:12), tap Start Fast, and watch your progress in real time. A live ring shows exactly where you are in your fast, and as the hours pass you'll move through five metabolic stages — from initial digestion all the way to deep ketosis. Each stage is explained so you actually understand what your body is doing, not just how long you've been waiting.

Screenshots

CaliFit4 screens
FastingWindow3 screens

Verdict

The call

The clearest difference is in-app purchases: CaliFit at none against FastingWindow's 1. FastingWindow's advantage is update cadence (every 2 days vs every 4 weeks). On price, ads, device support and iOS requirement 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. FastingWindow sells 1 one-off in-app purchase. CaliFit asks for nothing beyond the download.

UpkeepUpdate frequency

CaliFit ships an update every 4 weeks, FastingWindow every 2 days. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 7 level
CaliFit versus FastingWindow: the parameters behind the verdict, then further details
ParameterCaliFitFastingWindow
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 4 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.0 — better26.4
Further details — not scored
Size36 MB5 MB
Age rating4+4+
DeveloperDom DavidMoon Labs LLC

In-app purchases

None

CaliFit

No in-app purchases

1 purchases

FastingWindow

One-time1
  • Unlock Forever$2.99

Questions

Is CaliFit free?
CaliFit is free to download, with no in-app purchases.
Is FastingWindow free?
FastingWindow is free to download, with in-app purchases available.
Do CaliFit or FastingWindow have ads?
Neither CaliFit nor FastingWindow shows ads.
Which is updated more often, CaliFit or FastingWindow?
CaliFit ships an update every 4 weeks, and FastingWindow every 2 days. Most recently, CaliFit was updated on October 15, 2026 and FastingWindow on October 6, 2026.

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