Comparison

Void vs fast_ Intermittent Fasting

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

Head to head
About

Void

This app offers a minimalist approach to meditation with a large, clear timer. It includes optional session timers, interval bells, and ambient sounds. Track your meditation streaks and sync sessions with your health data.

Highlights
  • Large, clear meditation timer
  • Optional session timer and interval bells
  • Ambient sounds for focus
  • Streak tracking for consistency
  • Syncs with Health app
Features
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Void is the perfect meditation timer for people who don't want their meditation timer to do too much. Features: • A big, beautiful timer • Optional session timer and interval bells • Ambient sounds to drown out your tinnitus • Streak tracking (for the competitive meditators) • Logs your meditation sessions to the Health app

About

fast_ Intermittent Fasting

This app simplifies intermittent fasting by automatically tracking your eating windows and fast tiers. Log meals, track water intake, and monitor weight trends with a clean, customizable interface. Optional pro features offer advanced meal planning and hydration guidance.

Highlights
  • Automatic fast tracking
  • Clean live timer
  • Meal logging with calories/macros
  • Water intake tracking
  • Weight trend charting
  • Offline functionality
  • Customizable themes
Features
Read full description

Fasting, made simple — and built so you'll actually keep it up. Most fasting apps are cluttered, naggy, and expensive. fast_ is the opposite: open it, log when you eat, and your fasts record and tier themselves — Micro, Mini, Short, Fast, Extended, Deep. No start/stop fiddling, no guilt, no walls. FREE, FOREVER • Auto fasts — just tap "I ate" and the app handles the timing • A clean live timer showing your current tier • Log meals with calories + macros, fully searchable • Water tracking with a daily goal • Weigh-ins with a trend chart • Share a meal with friends or family using a quick code • Works offline — log on the go and it syncs when you're back online • Real stats, streaks, and a 7-day chart • 7 themes, from neon synthwave to clean light, plus a colorblind-friendly palette • Hide any feature you don't use — make it as minimal as you want GO PRO — OPTIONAL • Snap a photo of your plate and the calories + macros fill themselves in • Or just type a meal and it gets estimated for you • Next-meal coach — set a calorie goal and see what to aim for at your next meal • Smart meal ideas matched to your goal and diet style • Eating out? Snap a menu or name the restaurant for dish picks that fit your goal • Weather-smart hydration — your water goal rises on hot days, with heat-safety tips • $9.99/month or $59.99/year (save 50%) Built for people who want something simple, that works, and that won't punish you if you skip a month. No ads. Cancel anytime. Your data stays yours — delete it whenever you want. Start your next fast in two taps. SUBSCRIPTION fast_ Pro is an auto-renewable subscription: Monthly $9.99 or Annual $59.99 (USD; prices may vary by region). Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://aim-env.com/fast/privacy.html

Screenshots

Void3 screens
fast_ Intermittent Fasting4 screens

Verdict

The call

The clearest difference is in-app purchases: Void at none against fast_ Intermittent Fasting's 2. fast_ Intermittent Fasting's advantage is update cadence (every 4 months vs every 10 months) and device support (3 vs 1). On price, rating, ratings volume and ads 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. fast_ Intermittent Fasting sells 2 in-app purchases, starting at $9.99 per month. Void asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Void against 5.0 for fast_ Intermittent Fasting. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

UpkeepUpdate frequency

Void ships an update every 10 months, fast_ Intermittent Fasting every 4 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Void versus fast_ Intermittent Fasting: the parameters behind the verdict, then further details
ParameterVoidfast_ Intermittent Fasting
PriceFreeFree
Rating5.0 (3 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better2
Update frequencyEvery 10 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.216.4 — better
Further details — not scored
Size32 MB48 MB
Age rating4+4+
DeveloperChristopher LangtonAtmospheric Integrity Management, LLC

In-app purchases

None

Void

No in-app purchases

2 purchases

fast_ Intermittent Fasting

Subscriptions2
  • Pro (Monthly)$9.991 Month
  • Pro (Annual)$59.991 Year

Questions

Is Void free?
Void is free to download, with no in-app purchases.
Is fast_ Intermittent Fasting free?
fast_ Intermittent Fasting is free to download, with in-app purchases available.
Which has better reviews, Void or fast_ Intermittent Fasting?
Void and fast_ Intermittent Fasting are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.
Do Void or fast_ Intermittent Fasting have ads?
Neither Void nor fast_ Intermittent Fasting shows ads.
Which is updated more often, Void or fast_ Intermittent Fasting?
Void ships an update every 10 months, and fast_ Intermittent Fasting every 4 months. Most recently, Void was updated on October 30, 2026 and fast_ Intermittent Fasting on October 31, 2026.

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