Blast: Gym Log Workout Tracker

Mad Mustache Company

In-app purchases

About this app

Blast is the simple, fast gym workout tracker and workout planner for anyone serious about building muscle and getting stronger. Log every set in seconds, follow a smart routine, and watch your strength add up week after week.

Whether you lift for muscle, strength, or general fitness, Blast keeps your entire training plan in one place. No clutter, no complicated setup. Open the app, start your session, and lift.

WHY LIFTERS CHOOSE BLAST

Logging a workout should take seconds, not minutes. Blast is built around a clean, tap-friendly log so you spend less time on your phone and more time training. Need a plan? The built-in AI workout generator creates a complete routine for your level and goals — free for every user, no subscription required.

KEY FEATURES

- Fast set logging — track sets, reps, weight, and RPE with a single tap. Your gym journal stays clean even mid-set.
- AI workout generator — answer a few questions and get a ready-to-run routine matched to your level, goal, and time. Free for every user.
- Custom workout planner — build templates with supersets and exercise groups, then reuse them anytime as your training plan evolves.
- Personal records — see every new PR the moment you finish a session and stay motivated to beat it.
- Smart rest timer — automatic countdown between sets keeps your tempo on point.
- Exercise library — hundreds of exercises with muscle targeting, plus your own custom moves.
- Progress dashboard — track weekly and monthly volume, training frequency, calories, and a full-body muscle heat map.
- Body measurements — log your weight and body part measurements and chart them over time.
- History and yearly review — revisit past workouts and relive your full year of training.

SEE YOUR PROGRESS, BUILD MUSCLE FASTER

Numbers keep you honest. Blast turns every logged set into clear charts and stats, so you can spot what is working, push past plateaus, and watch your strength climb. Hitting a new personal record after a session is the reward that keeps you coming back.

WORKS OFFLINE, SYNCS WHEN YOU WANT

Core tracking works fully offline, so a weak gym signal never interrupts your workout. Back up to Google Drive, export everything to CSV, and connect Apple Health or Google Fit to keep your activity in sync.

BUILT FOR EVERY GOAL

- Bodybuilding and muscle building — track volume, supersets, and progressive overload
- Strength training and powerlifting — log heavy compounds and chase new personal records
- Weightlifting and general fitness — generated sessions that fit your schedule
- Beginners — let the AI workout generator build your first routine in seconds

START TODAY

Download Blast, log your first workout, and make every rep count. Free to download, with an optional premium upgrade for advanced features.

Ratings and reviews

I've tried a bunch of workout tracker apps over the years, but this one truly stands out. The design is clean and easy to navigate, and it strikes the perfect balance between simplicity and powerful features. I can track my gym sessions, log sets and reps, and see progress over time, all without getting overwhelmed.

This is the best workout app! After having tried all possible gym workout apps I have found finally the most complete, easiest, and most elegant app. The design is slick, the app is fast, the stats are so good and the options to track every exercise with different equipment and track the stats per equipment is so handy. The support is also fantastic, I contacted them a couple of times to report some small bugs and they fixed them right away. I recommend this app to all gym enthusiastics!

This app is fantastic. I was going to complain that routines required a set weight (I've been off for a year's time), only to notice that they have added an option that automatically sets the weight from 1RM or previous. This was basically the only thing I was missing, so I am definitely subscribing again. I will say that the free tier is a bit too naggy in my opinion, though. I think the added features are sufficient, so I would drop the nag screen when opening the app, personally.

What’s new

- Bigger celebration: the confetti now scales with the number of personal records you set.
- Bug fixes and stability improvements.