Comparison

MFW vs ShotLock

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

Head to head
About

MFW

Read full description

Welcome to INOVA’s Obstetrics Biospecimen and Data Procurement Program (OB-BDP), also known as our Obstetrics (OB) Research Study. Thank you for taking the time to complete these OB study forms. Your participation will advance research to benefit women in the future. We value and appreciate your time. You have the option to complete these forms in one session or multiple sessions, depending on your schedule and other commitments.

About

ShotLock

This app ensures you never miss a GLP-1 medication dose by locking distracting apps until you log your injection. It also tracks your progress, medication levels, and provides insights into your health journey. Designed for consistency, it helps users adhere to their treatment plans.

Highlights
  • App locking until dose confirmation
  • One-tap dose logging
  • Injection site rotation suggestions
  • Estimated medication level curves
  • Weight and progress tracking
  • Home screen widgets
  • Data export options
Features
Read full description

The GLP-1 tracker that does more than log your shot. Track every dose, see your estimated medication levels between shots, and watch your weight progress — all in seconds a day, no account required. ShotLock works with Zepbound®, Mounjaro®, Wegovy®, Ozempic®, Rybelsus®, Saxenda®, Victoza®, Trulicity®, Foundayo®, compounded semaglutide and tirzepatide, retatrutide, GLP-1 pills, and custom medications. TRACK EVERY DOSE IN SECONDS • One-tap logging for weekly shots and daily pills • Injection site rotation with smart "next site" suggestions • Dose history, pain levels, notes, and on-time streaks • Supply tracking so you always know how many doses you have left SEE WHAT'S IN YOUR BODY • Estimated medication level curves built on published pharmacokinetic research for each medication • Know your phase at a glance: Absorbing, At Peak, or Declining • Built-in Research Library with every study we rely on — no made-up numbers PROGRESS YOU CAN SEE • Weight tracking with goal progress, synced with Apple Health • Compare your results against published clinical trial data • Progress photos with onion-skin alignment for perfectly matched before-and-afters • Turn your journey into a shareable time-lapse video • Daily check-ins for side effects, cravings, energy, and mood — with insights that connect how you feel to where you are in your dose cycle WIDGETS AT A GLANCE • Shot Clock — a live countdown to your next dose, right on your home screen • In Your Body — your medication curve and current phase, no app open required • Streak Shield — your on-time streak and doses remaining, with a refill warning before you run out NEED A STRONGER REMINDER? (OPTIONAL) I built ShotLock because I take semaglutide and have ADHD — notifications were too easy to swipe away, and I kept missing shot day. So ShotLock includes something no other tracker has: an optional mode that locks your distracting apps at shot time until you log your dose. • Completely optional — most people use ShotLock as a classic tracker and reminder • Calls, messages, and essential system apps always stay available • Emergency unlock for when life happens • For those of us who need it: no more "I'll do it later" YOUR DATA, YOUR RULES • No account. No email. We create an anonymous identifier with nothing tied back to you • Your health data stays on your device • Switching apps? Import your dose history from other GLP-1 trackers in minutes • Export anytime: PDF summary for your doctor, CSV, or full backup Want ShotLock to track or sync something it doesn't yet? Request it on our roadmap right from the app — we ship fast. Available in English, Spanish, Portuguese, German, Japanese, Swedish, Danish, and Norwegian. ShotLock is for tracking and educational purposes only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult your healthcare provider before making any medical decisions or changes to your treatment. Terms of Use: https://www.shotlockapp.com/terms Privacy Policy: https://www.shotlockapp.com/privacy

Screenshots

MFW3 screens
ShotLock4 screens

Verdict

The call

The clearest difference is in-app purchases: MFW at none against ShotLock's 3. MFW also leads on iOS requirement (13.4 vs 16.0). ShotLock's advantage is update cadence (every 2 weeks vs every 42 months). On price, ads 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. ShotLock sells 3 in-app purchases, starting at $6.99 per month. MFW asks for nothing beyond the download.

UpkeepUpdate frequency

MFW ships an update every 42 months, ShotLock every 2 weeks. The most recent releases landed on October 7, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
MFW versus ShotLock: the parameters behind the verdict, then further details
ParameterMFWShotLock
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 42 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.4 — better16.0
Further details — not scored
Size21 MB68 MB
Age rating17+4+
DeveloperSpark Media, Inc.FocusGate

In-app purchases

None

MFW

No in-app purchases

3 purchases

ShotLock

Subscriptions2
  • Monthly Subscription7 Days trial$6.991 Month
  • Yearly Subscription7 Days trial$39.991 Year
One-time1
  • One-Time Purchase$39.99

Questions

Is MFW free?
MFW is free to download, with no in-app purchases.
Is ShotLock free?
ShotLock is free to download, with in-app purchases available.
Do MFW or ShotLock have ads?
Neither MFW nor ShotLock shows ads.
Which is updated more often, MFW or ShotLock?
MFW ships an update every 42 months, and ShotLock every 2 weeks. Most recently, MFW was updated on October 7, 2026 and ShotLock on October 31, 2026.

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