Tabata Timer
Interval Timer
Interval Trainer Pro
Workout Timer PRO
Stopwatch Timer
Study Bunny
Timerdoro
Workout Timer
RepDB
RepDB is a one-time-purchase exercise dataset for developers building fitness and workout apps โ not a subscription, not a rate-limited API. You download the data once and own it: JSON (and SQLite on the higher tier), WebP images, and full EN/DE/ES translations, with no per-request billing and no dependency on our servers staying up.
A free tier includes 400 exercises with flat-style 512ร512 images, attribution-licensed for commercial in-app use. The Starter tier ($199) adds the full catalog in classic white-background style. Standard ($399) adds transparent 1024px images, looping animations, exercise relations (similar/progressions/regressions), workout templates, and embeddings โ exclusive to that tier.
Every exercise includes muscle-group highlighting, equipment/muscle icons, MET values, and safety/goal tags. Compared to GIF- or JPG-based competitor APIs, RepDB images are transparent WebP with no watermarks, so they drop into any app UI without a white box around them.
Tabata Timer RepDBRepDB's answer:
RepDB is sold as a one-time download, not a metered API โ you own the JSON/SQLite data and WebP images outright, with no rate limits, no per-request billing, and no risk of the vendor cutting off access. It's also the only dataset in this space with EN/DE/ES translations, transparent (alpha-channel) images with no watermark, muscle-group highlighting, safety/goal tags, and looping animations on the higher tier.
RepDB's answer:
RepDB grew out of a consumer workout app its creator was building solo. Sourcing exercise images and data meant either paying for a subscription API with usage caps and no caching rights, or producing everything from scratch. The illustrated, multi-language dataset was built for us first, then split out as its own product once it became clear other indie developers had the same problem and preferred to buy the data outright rather than rent it through an API.
RepDB's answer:
Most alternatives are subscription APIs โ you pay monthly, you're capped on requests, and ExerciseDB's terms of use explicitly forbid caching or storing the data at all, so every image render is a live paid API call. RepDB is the opposite: pay once, download the files, self-host with zero ongoing dependency. It's also the only option offering true DE/ES localization and transparent images instead of a white box behind every exercise.
RepDB's answer:
Solo developers and small teams building fitness or workout-tracking apps (iOS, Android, web) who need licensed exercise images and structured exercise data, but don't want to build their own media pipeline or depend on a rate-limited third-party API.
Based on our record, Tabata Timer seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I was using a website timer ( https://fitlb.com/tabata-timer) to track and yell at me when my jade buffs and combat booster buffs expire. I thought I had it ready to just click and be done (I tried at the end of Black Citadel) but I screwed some setting up. So I decided to fix that up before starting Metrica. Source: about 3 years ago
Do a Tabata. 20 seconds on, 10 off for 10 minutes. Do high knees, jumping jacks, or jump rope - something simple and uncomplicated. https://fitlb.com/tabata-timer. Source: about 4 years ago
Interval Timer - Interval Timer is a mobile application that helps you stay consistent in your workouts.
Interval Trainer Pro - Interval Trainer Pro is a cutting-edge tool built to serve people interested in HIIT Crossfit Interval Training.
Workout Timer PRO - Workout Timer Pro is a useful tool for all people enthusiastic about HIIT workouts and training.
Stopwatch Timer - Stopwatch Timer is a mobile application that helps you keep track of your time.
Study Bunny - A motivational productivity study timer to stay focused!
Timerdoro - An online Pomodoro clock with multiple timers and alarms
