Comparison

Days Without vs Fasting Mastery

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

Head to head
About

Days Without

This app helps you break bad habits and track your progress with a visual streak counter. It offers challenges, badges, and statistics to keep you motivated. An optional premium version provides unlimited goals and custom themes.

Highlights
  • Day counter without relapse
  • 7/14/30 day challenges
  • Badges and clear stats
  • Daily motivation
  • Unlimited goals (premium)
  • Custom themes (premium)
Features
Read full description

Days Without helps you quit a habit (smoking, alcohol, sugar, social media…) and keep your streak going. Simple, motivating, and visual. With Days Without: • Day counter without relapse • 7/14/30 day challenges • Badges & clear stats (best streak, total, resets) • Daily motivation at your chosen time Premium (optional): • Unlimited goals • Custom themes • No ads Whether you’re quitting smoking or cutting screen time, Days Without turns effort into visible progress. Start today. One day at a time.

About

Fasting Mastery

Features
Read full description

You fasted for 14 hours yesterday. You just don't know it yet. Fasting Tracker shows you exactly where you are in your fast — right now, in real time. No meal plans. No food databases. No judgment. Just the clock, the phase you're in, and a little nudge to keep going. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lavender-utahraptor-b7c.notion.site/Privacy-policy-2f68fbc25c0f80b293d0fba19d8ba7a5 YOUR FAST, LIVE - See your fasting duration tick up every second — Fat Burning, Autophagy, whatever phase you're chasing - Log your last meal in 3 taps. Seriously. Three. - Quick presets: Now, 15m ago, 1h ago — because nobody wants to type the exact time they ate a biscuit STAY HYDRATED, STAY FASTING - Log every sip with quick presets and your own custom "My cup" size - Live hydration score shows how you're doing over the last 24 hours — full tank means you nailed it - A dedicated water page: today's intake, weekly bars, hourly patterns, and a confidence range that sharpens as you log - Water never breaks your fast — it has zero calories, so the clock keeps running while you stay topped up DATA THAT ACTUALLY TELLS YOU SOMETHING - 24-hour timeline cards: see your fasting vs eating windows painted across every day of the week - Phase stacked bar chart: find out which fasting phase you're actually spending time in - Insights screen: your streak, your personal best, your eating window, your program match — all in one scroll - Calorie breakdown by meal type with your personal BMR as a reference line (optional body profile) - Filter your history by Water, Food, or Alcohol with a single tap YES, ALCOHOL LOGGING TOO - Log drinks from 11 types: Lager, Red Wine, Spirits, Cocktails and more - Automatic calorie calculation from ABV and serving size - Real-time Blood Alcohol Level estimate with dissolution curve, drink-event markers, and predicted sober time - It participates in your fasting clock, because biology doesn't take the night off BUILD STREAKS THAT ACTUALLY STICK - Auto-detected fasting patterns (16:8, 18:6, 20:4 and more) - Week-over-week trend arrows — is your fast getting longer or slipping? - Personal best tracker — your longest fast, sitting there daring you to beat it - Fasting program comparison: see how close you actually are to your goal - YOUR DATA, EVERYWHERE - Works 100% offline — no account needed to start - Optional cloud sync via Google Sign-In — your history (water included) follows you across devices - Cloud backup and restore — nothing gets lost No guilt. No streaks of shame. No diet culture. Just your data, honestly. And a very satisfying timer going up. Download free. Start your fast.

Screenshots

Days Without4 screens
Fasting Mastery4 screens

Verdict

The call

The clearest difference is iOS requirement: Fasting Mastery at 13.0 against Days Without's 17.6. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Days Without sells 1 one-off in-app purchase and Fasting Mastery sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Days Without versus Fasting Mastery: the parameters behind the verdict, then further details
ParameterDays WithoutFasting Mastery
PriceFreeFree
Rating1.5 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequency—Every 4 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size5 MB73 MB
Age rating4+12+
DeveloperClément BéchuYasiru Abeygunawardana

In-app purchases

1 purchases

Days Without

One-time1
  • Premium version$3.99
3 purchases

Fasting Mastery

Subscriptions3
  • Monthly$1.991 Month
  • Quarterly$2.993 Months
  • Annual$9.991 Year

Questions

Is Days Without free?
Days Without is free to download, with in-app purchases available.
Is Fasting Mastery free?
Fasting Mastery is free to download, with in-app purchases available.
Do Days Without or Fasting Mastery have ads?
Neither Days Without nor Fasting Mastery shows ads.

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