Comparison

Intermittent Fasting Flow vs TrueFast

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

Head to head
About

Intermittent Fasting Flow

Track your fasting periods with a clean, ad-free timer. Choose from various fasting plans and monitor your progress with live widgets. Sync data with Apple Health and use Siri shortcuts for hands-free control.

Highlights
  • Ad-free fasting timer
  • Lock screen and home screen widgets
  • Multiple fasting plan durations
  • Customizable start times
  • Streak tracking and milestone badges
  • Apple Health integration
  • Siri shortcuts
Features
Read full description

Ad-Free. Always. Intermittent Fasting Flow is a clean, distraction-free fasting tracker built for people serious about their health. Choose your fasting plan, track your hydration, and learn the science behind every fast — all in one beautiful app. FASTING TIMER Choose from 12, 14, 16, 18, or 20-hour plans. Live progress ring, streak tracking, and milestone badges keep you motivated every step of the way. HYDRATION TRACKING Stay hydrated during your fast. Set a daily water goal and log intake with one tap — small cup, glass, bottle, or custom amount. LEARN Curated articles from trusted sources on intermittent fasting science, tips, and protocols. Know what's happening in your body while you fast. WIDGETS & LIVE PROGRESS Lock screen and home screen widgets keep your fasting and hydration status visible all day — without opening the app. APPLE HEALTH & SIRI Sync fasting sessions to Apple Health as mindful minutes. Use Siri shortcuts to start or end a fast hands-free. COMPLETELY AD-FREE No ads. No popups. No distractions. The 16:8 plan is free, forever. Unlock all plans and Pro features with a subscription.

About

TrueFast

Track your intermittent fasting journey with a clean, ad-free interface. Monitor your progress, set personalized goals, and access educational content. Offers seamless integration with Apple Watch and Lock Screen widgets for easy access.

Highlights
  • Fasting timer with elapsed and remaining time
  • Saved goals for common fasting plans
  • Schedules and reminders
  • History calendar, streaks, and badges
  • Lock Screen widgets and Apple Watch support
  • Fasting phase education
  • Local-first data storage
Features
Read full description

TrueFast is a simple intermittent fasting tracker built to stay out of your way. Start a fast, follow your saved goal, check your progress from your iPhone or Apple Watch, and review your fasting history without ads, social features, or clutter. Core features are free: • Fasting timer with elapsed and remaining time • Saved goals for common fasting plans • Schedules and reminders • History calendar, streaks, and badges • Lock Screen widgets, Home Screen widgets, Live Activities, and Apple Watch support • Fasting phase education with clear wellness context • Local-first data storage TrueFast Pro adds optional power-user tools: • iCloud sync across devices • Weight tracking with Apple Health • Advanced charts • CSV export • Custom themes and app icons • All future Pro features TrueFast is intended for adults. Fasting may not be appropriate for children, teens, pregnant or breastfeeding people, people with a history of eating disorders, or people with certain medical conditions. Consult a qualified healthcare professional before fasting. TrueFast does not provide medical advice, diagnosis, or treatment. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://gettruefast.com/privacy-policy

Screenshots

Intermittent Fasting Flow4 screens
TrueFast4 screens

Verdict

The call

The clearest difference is ratings volume: Intermittent Fasting Flow at 7 against TrueFast's 1. On price, rating, update cadence 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. Intermittent Fasting Flow sells 2 in-app purchases, starting at $1.99 per month and TrueFast sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Intermittent Fasting Flow against 5.0 for TrueFast. That said, the two scores are not equally well evidenced: Intermittent Fasting Flow has 7 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Intermittent Fasting Flow ships an update every 4 days, TrueFast every 6 days. The most recent releases landed on September 22, 2026 and September 15, 2026 respectively.

Scorecard1 real difference · 9 level
Intermittent Fasting Flow versus TrueFast: the parameters behind the verdict, then further details
ParameterIntermittent Fasting FlowTrueFast
PriceFreeFree
Rating5.0 (7 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings7 — better1
Update frequencyEvery 4 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.6 — better18.0
Further details — not scored
Size6 MB6 MB
Age rating4+17+
DeveloperIVAYLO PLAMENOV VACHKOVEvan Mattson

Customer experience

Intermittent Fasting Flow

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

TrueFast

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Intermittent Fasting Flow

Subscriptions2
  • Monthly7 Days trial$1.991 Month
  • Yearly7 Days trial$19.991 Year
6 purchases

TrueFast

Subscriptions2
  • TrueFast Pro Monthly$2.991 Month
  • TrueFast Pro Yearly$19.991 Year
One-time4
  • Buy Us a Coffee$1.99
  • Power the Fast$4.99
  • Super Supporter$9.99
Show 1 more
  • TrueFast Pro (Lifetime)$29.99

Questions

Is Intermittent Fasting Flow free?
Intermittent Fasting Flow is free to download, with in-app purchases available.
Is TrueFast free?
TrueFast is free to download, with in-app purchases available.
Which has better reviews, Intermittent Fasting Flow or TrueFast?
Intermittent Fasting Flow and TrueFast are both rated 5.0 out of 5 on the App Store, from 7 and 1 ratings respectively.
Do Intermittent Fasting Flow or TrueFast have ads?
Neither Intermittent Fasting Flow nor TrueFast shows ads.
Which is updated more often, Intermittent Fasting Flow or TrueFast?
Intermittent Fasting Flow ships an update every 4 days, and TrueFast every 6 days. Most recently, Intermittent Fasting Flow was updated on September 22, 2026 and TrueFast on September 15, 2026.

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