Comparison

Fast vs ShotLog

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

Head to head
About

Fast

This app helps you track intermittent fasting routines, monitor progress, and analyze health data. It offers educational content, motivational challenges, and a journal to record your feelings. Connect with friends for support and motivation on your wellness journey.

Highlights
  • Fasting timer and tracker
  • Progress analytics and history
  • Educational 'Know It' section
  • Motivational challenges and trophies
  • Mood tracker and journal
  • Health app integration (steps)
  • Fasting buddy feature
Features
Read full description

Fast: Fasting Tracker & Timer helps you build consistent fasting habits with flexible fasting plans, body weight logging, water intake tracking, reminders, and detailed progress insights. Whether you're new to intermittent fasting or already following a routine, the app provides the tools to stay organized and work toward your personal health and wellness goals. Choose a fasting plan, customize your schedule, and track every fast in one place with an easy-to-use fasting tracker. FASTING PLANS Find a fasting schedule that works for your lifestyle. Choose from 12:12, 13:11, 14:10, 15:9, 16:8, 17:7, 18:6, 19:5, 20:4, 21:3, 22:2, 23:1, MWF, TTS, or create your own custom fasting plan. Whether you're starting intermittent fasting or maintaining an existing routine, you can choose a plan that suits your goals. FASTING TRACKER & TIMER Track active and completed fasts with an intuitive fasting tracker and timer. Review your fasting history and monitor your consistency over time. BODY WEIGHT & WATER TRACKING Log your body weight and monitor changes throughout your fasting routine. Track your daily water intake to stay hydrated and build healthier habits alongside your fasting schedule. SMART REMINDERS Stay on schedule with fasting reminders and water intake reminders. Customize notifications to help you start and end your fasting window on time while maintaining your daily hydration routine. ANALYTICS & HISTORY Review your fasting sessions, body weight, hydration logs, activity, and history with easy-to-understand analytics that help you monitor your progress and stay consistent. INFORMATIVE BLOGS Learn more about intermittent fasting through informative blogs covering healthy habits, wellness topics, and practical guidance to help you better understand your fasting routine. FASTING BUDDIES Stay motivated by fasting together. Invite friends, track each other's progress, and encourage one another throughout your fasting journey with the Buddy feature. ACTIVITY SUPPORT Sync your activity data to keep your fasting progress and daily activity organized in one place for a more complete overview of your routine. Whether you're following a 16:8 fasting schedule, exploring different intermittent fasting plans, or creating a custom fasting routine, Fast: Fasting Tracker & Timer gives you the tools to stay organized and build lasting healthy habits. DISCLAIMER This app is intended for informational and lifestyle purposes only and does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before starting any fasting routine, especially if you have an existing medical condition, are pregnant, or have specific dietary requirements. PRIVACY POLICY https://maximaapps.com/fasting/privacy_policy.html TERMS OF USE https://maximaapps.com/fasting/terms-of-use.html GET IN TOUCH Have questions, feedback, or suggestions? We'd love to hear from you. Contact us through the app or email us at feedback@maximaapps.com.

About

ShotLog

Features
Read full description

The calm way to keep your injections on schedule. Log a shot in two taps, rotate sites without guessing and follow your dose steps, all in one private app. No account, no servers: everything you enter stays on your iPhone. WHO IT'S FOR ShotLog is for anyone who self-injects on a regular schedule prescribed by a doctor: weekly GLP-1 pens, testosterone, biologics, fertility protocols, vitamin shots and more. You enter the medication, dose and rhythm. ShotLog keeps track. ONE SCREEN, ONE ANSWER Open the app and see what matters: when the next shot is due, where the last one went and your current dose. No spreadsheets, no sticky notes, no "was it Wednesday or Thursday?" LOG IN TWO TAPS Date, dose and site are already filled in. Tap and you're done. Forgot to log? Add an earlier date anytime. ROTATE SITES WITHOUT GUESSING A body map shows how long each site has rested, from abdomen quadrants to thighs and arms. ShotLog suggests the site that has rested longest, so you don't have to remember. FOLLOW YOUR DOSE STEPS If your prescription raises the dose over time, enter each step and its number of weeks. The current step and dose update by themselves as the weeks go by. YOUR HISTORY AT A GLANCE A monthly calendar marks every shot as on plan, shifted or skipped. Tap a day to see the details. REMINDERS THAT DON'T NAG A heads-up the day before, a reminder on the day and a gentle repeat if you haven't logged. Missed a dose or paused your course? ShotLog adjusts without judgment. What to do next is a conversation for you and your doctor. PRIVATE BY DESIGN • No account, no sign-up, no servers • Your data stays on your iPhone. We never see it • No ads, no tracking, no analytics on your health data • Face ID lock, CSV export and delete-all in one tap FREE AND PRO Free forever: your course, two-tap logging, history, reminders, Face ID lock and CSV export. ShotLog Pro adds the site rotation map with next-site suggestion, the dose ladder by weeks and a reminder the day before your dose step changes. IMPORTANT ShotLog is a logbook, not medical advice and not a medical device. It does not recommend, calculate or change doses and does not interpret symptoms. Everything in the app is entered by you, as prescribed. Always follow your doctor's instructions and talk to your healthcare provider before changing your treatment. You can also read: Privacy Policy: https://sites.google.com/view/castles-trip-privacy-policy/shotlog Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Fast4 screens
ShotLog4 screens

Verdict

The call

The clearest difference is update cadence: ShotLog at every 10 days against Fast's every 2 months. Fast's advantage is device support (3 vs 1). On price, ads, in-app purchases 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. Fast sells 8 in-app purchases, starting at $4.99 per month and ShotLog sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fast ships an update every 2 months, ShotLog every 10 days. The most recent releases landed on November 13, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Fast versus ShotLog: the parameters behind the verdict, then further details
ParameterFastShotLog
PriceFreeFree
Rating4.7 (3.3K ratings) — better—
Positive reviews74.6% of reviews—
Number of ratings3.3K — better—
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.618.0 — better
Further details — not scored
Size116 MB4 MB
Age rating12+12+
DeveloperMaxima AppsStanislav Duplinskiy

Bugs and requests

Fast

Reported bugs

3 issues
  • Timer not accurately recording fasting times
  • Inability to update weight in app
  • Crashing when trying to view friend's status

Requested features

4 requests
  • Option to edit fasting start/end times
  • More detailed analytics and progress tracking
  • Improved syncing and data saving reliability
  • Expanded customization options

ShotLog

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Fast

Subscriptions6
  • Fast Premium Monthly$4.991 Month
  • Fasting Monthly$14.991 Month
  • Fasting Annually$19.991 Year
Show 3 more
  • Fasting Premium$27.993 Months
  • Fast Premium Yearly$29.991 Year
  • Fasting Premium Yearly$39.991 Year
One-time2
  • Fasting One Time Special Offer$19.99
  • Fasting Pro$49.99
3 purchases

ShotLog

Subscriptions3
  • ShotLog Pro — 1 Week3 Days trial$1.997 Days
  • ShotLog Pro — 3 Months7 Days trial$16.993 Months
  • ShotLog Pro — 1 Year7 Days trial$44.991 Year

Questions

Is Fast free?
Fast is free to download, with in-app purchases available.
Is ShotLog free?
ShotLog is free to download, with in-app purchases available.
Do Fast or ShotLog have ads?
Neither Fast nor ShotLog shows ads.
Which is updated more often, Fast or ShotLog?
Fast ships an update every 2 months, and ShotLog every 10 days. Most recently, Fast was updated on November 13, 2026 and ShotLog on November 6, 2026.

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