REW
AUDio MEasurement System
Open Sound Meter
Ease Address
MAPP 3D
Simple Audio Sweeper
ARTA
QSpeakers
RepDB
RepDB is a one-time-purchase exercise dataset with animations for developers building fitness and workout apps — 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 600+ exercises with flat-style 512×512 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 — 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.
REW RepDBRepDB'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.
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.
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, REW seems to be more popular. It has been mentiond 1 time 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.
Yes... this. That's the correct answer. Room EQ Wizard REW is free. Just get a decent microphone, as was stated. The miniDSP UMIK-1 is a great option. Source: over 3 years ago
AUDio MEasurement System - multi-platfrom system for audio measurement through sound card in the PC.
Open Sound Meter - Could work as a standalone universal audio engineering measurement solution and as a remote wireless control and monitoring for desktop instances.
Ease Address - EASE Address is a software that allows the modeling of acoustic sources, in particular distributed (mostly ceiling/pendant) loudspeaker systems, in two dimensions.
MAPP 3D - A powerful, multipurpose sound system design tool that delivers precise, high-resolution predictions of sound energy distribution in a three-dimensional sound field.
Simple Audio Sweeper - Simple Audio Sweeper. A handy tool for DIY audio enthusiasts. It generates any desired audio frequency and analyzes your audio system’s frequency response. - PJDude/sas
ARTA - Collection of programs for audio measurements and analysis in acoustical and communication systems. Uses standard and professional PC sound cards for audio signal acquisition and generation.
