Comparison

Interval Timer vs MI Workout Tracker

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

Head to head
About

Interval Timer

Read full description

Interval Timer is a simple and user-friendly app designed for fitness enthusiasts, athletes and anyone who needs to manage their workout time efficiently. With its sleek and intuitive interface, Interval Timer makes it easy to customize and run interval training sessions on your phone. Highlights: ** Create your own custom interval routines to fit your specific workout needs ** Easily access all of your favorite workouts with a single tap ** User-friendly interface with an intuitive color scheme ** Choose from a variety of alert sounds or use voice prompts to keep you on track ** Save your workouts for future reference ** Synchronize your workouts with Apple Health and iCloud ** Supports iPhone and iPad Whether you're a seasoned athlete or just starting your fitness journey, our Interval Timer App is designed to help you achieve your goals with ease. Download now and start making the most of your workout time! Interval Timer Premium This app includes an optional lifetime purchase and auto-renewable subscriptions to access all current and upcoming features. The subscription starts with a free trial period and includes a one-month or one-year subscription. Payment will be charged to your Apple ID account at the confirmation of purchase. This subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your Apple ID account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Privacy Policy: https://intervaltimer.info/privacy Terms of Use: https://intervaltimer.info/terms Do you like the app? Then feel free to leave a rating.  The app is constantly being improved and your ideas and suggestions are welcome.

About

MI Workout Tracker

Features
Read full description

TRAIN SMARTER - You do the lifting, we do the thinking Take the guesswork out of your fitness journey with Muscle Intelligence, the ultimate workout tracker designed to help you build muscle, gain strength, and crush your goals. Whether you’re a beginner or a seasoned lifter, we’ve got you covered with tools to train smarter, not just harder. WHY MUSCLE INTELLIGENCE? - Premade Workouts: Jump right in with expertly crafted plans backed by the latest sports science research—perfect for maximizing hypertrophy and strength. - Customizable Templates: Tailor any premade workout to fit your style or preferences with easy editing tools. - Build from Scratch: Unleash your creativity and design personalized workout plans that match your unique goals. - Progress Tracking: Watch your gains stack up with automatic week-to-week tracking. Monitor your lifts, reps, and progress effortlessly. - Progressive Overload Made Simple: Supercharge muscle growth with built-in support for incremental increases in weight or reps. The app auto-updates your workouts each week, so you’re always pushing the right limits. No clutter, no ads—just a premium experience focused on results. Download now and kick off your 2-week free trial to see why Muscle Intelligence is the workout companion you’ve been waiting for. Lift smarter, grow stronger, and own your progress—starting today! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Interval Timer4 screens
MI Workout Tracker4 screens

Verdict

The call

Interval Timer and MI Workout Tracker are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Interval Timer sells 3 in-app purchases, starting at $1.99 per month and MI Workout Tracker sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Timer ships an update every 5 weeks, MI Workout Tracker monthly. The most recent releases landed on September 10, 2026 and September 26, 2026 respectively.

ScorecardNo meaningful differences
Interval Timer versus MI Workout Tracker: the parameters behind the verdict, then further details
ParameterInterval TimerMI Workout Tracker
PriceFreeFree
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size14 MB46 MB
Age rating4+4+
DeveloperSebastian PrasaAnthony Sproson

In-app purchases

3 purchases

Interval Timer

Subscriptions2
  • Premium One Month7 Days trial$1.991 Month
  • Premium One Year7 Days trial$8.491 Year
One-time1
  • Premium Lifetime$16.99
2 purchases

MI Workout Tracker

Subscriptions2
  • Muscle Intelligence Monthly14 Days trial$1.991 Month
  • Muscle Intelligence Annual14 Days trial$19.991 Year

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is MI Workout Tracker free?
MI Workout Tracker is free to download, with in-app purchases available.
Do Interval Timer or MI Workout Tracker have ads?
Neither Interval Timer nor MI Workout Tracker shows ads.
Which is updated more often, Interval Timer or MI Workout Tracker?
Interval Timer ships an update every 5 weeks, and MI Workout Tracker monthly. Most recently, Interval Timer was updated on September 10, 2026 and MI Workout Tracker on September 26, 2026.

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