Buffro.app's answer

Buffro combines an offline-first workout tracker with AI coaching, personalized plans, strength ranks, nutrition tracking, meal scanning, physique scans, and progress tools in one iOS and Android app. Core workout logging works without an internet connection, and the app includes 1,300+ exercises with demos and filters. It is free to download, with optional Pro features.

RepDB's answer:

RepDB is sold as a one-time download, not a metered API — 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.

Buffro.app's answer

Choose Buffro if you want one app for logging workouts, planning routines, monitoring strength, and tracking nutrition without relying on a connection for core logging. Compared with simpler workout logs, Buffro also includes AI coaching, personalized plans, strength ranks, meal and physique scans, progress photos, and 1,300+ exercises. The app is available on iOS and Android and is free to download with optional Pro.

RepDB's answer:

Most alternatives are subscription APIs — 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.

Buffro.app's answer

Buffro is built for people who train with weights—from beginners creating their first structured routine to experienced lifters tracking progressive overload, PRs, and strength ranks. It also suits users who want workout, nutrition, and visual progress tools in one mobile app, including people who need reliable workout logging when connectivity is limited.

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.

Buffro.app's answer

Buffro is built with React Native and Expo for iOS and Android. SQLite supports the offline-first local workout database, while Supabase provides authentication, cloud data, and server-side functions. RevenueCat manages subscriptions, and Sentry is used for reliability monitoring.