ScaleBook VS RepDB

Compare ScaleBook VS RepDB and see what are their differences

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ScaleBook

ScaleBook is a platform that allows users to keep track of their weight.

RepDB

Exercise dataset for fitness apps: transparent background, animations, no subscription

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Landing page //
2020-05-19

Image date //
2026-07-21
Landing page //
2026-07-21
Image date //
2026-07-21

RepDB is a one-time-purchase exercise dataset 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 400 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.

ScaleBook

Website: scalebook.alexaubry.fr
Pricing URL: -
$ Details: -
Platforms: -
Release Date: -

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RepDB

Website: repdb.co
Pricing URL: Official RepDB Pricing
$ Details: freemium $199.0 / One-off
Platforms: Web Mobile
Release Date: 2026 July

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ScaleBook features and specs

User-Friendly Interface
ScaleBook offers an intuitive and user-friendly interface, making it easy for users to navigate and use without requiring a steep learning curve.
Integrated Feedback System
The platform provides an integrated feedback system that allows users to rate and comment on scales, fostering a community-driven approach.
Comprehensive Scale Library
ScaleBook features a comprehensive library of scales, providing users with a wide variety of musical scales to explore and learn.
Interactive Learning Tools
The platform includes interactive tools for learning and practicing scales, enhancing the educational experience for users.

Possible disadvantages of ScaleBook

Limited Customization Options
Users may find the customization options limited, as the platform offers a fixed set of features without much flexibility for personalization.
Dependency on Internet Connection
ScaleBook requires an internet connection to access its features, which may be inconvenient for users who want offline access.
Potential for Overwhelm
The vast amount of content available on ScaleBook can be overwhelming for beginners, who may not know where to start.
Subscription Cost
Depending on the site's pricing model, there could be an associated subscription cost, which may not be accessible for all users.

RepDB features and specs

WebP Format Benefits
start+peak exercise images
JSON
relations, metadata, equipment
Transparency
transparent background
Animations
Animated loops in paid tier

Category Popularity

0-100% (relative to ScaleBook and RepDB)

ScaleBook

RepDB

Health And Fitness

85 85%

Health And Fitness

15% 15

Datasets

0 0%

Datasets

100% 100

iPhone

100 100%

iPhone

0% 0

Developer Tools

0 0%

Developer Tools

100% 100

Questions & Answers

As answered by people managing ScaleBook and RepDB.

What makes your product unique?

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.

What's the story behind your product?

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.

Why should a person choose your product over its competitors?

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.

How would you describe the primary audience of your product?

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.