Software Alternatives, Accelerators & Startups

ActivityWatch VS RepDB

Compare ActivityWatch VS RepDB and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

ActivityWatch logo ActivityWatch

Log what you do on your computer. Simple (yet powerful), extensible, no third parties.

RepDB logo RepDB

Exercise dataset for fitness apps: transparent background, animations, no subscription
Visit Website
  • ActivityWatch Landing page
    Landing page //
    2022-11-03
  • RepDB
    Image date //
    2026-07-21
  • RepDB Landing page
    Landing page //
    2026-07-21
  • RepDB
    Image date //
    2026-07-21

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 512ร—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 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.

ActivityWatch

Pricing URL
-
$ Details
Platforms
-
Release Date
-

RepDB

Website
repdb.co
$ Details
freemium $199.0 / One-off
Platforms
Web Mobile
Release Date
2026 July

ActivityWatch features and specs

  • Open Source
    ActivityWatch is an open-source project, which means its code is publicly available for review and contributions. This promotes transparency and security.
  • Cross-Platform
    ActivityWatch works on multiple operating systems including Windows, macOS, and Linux, making it versatile and accessible for users on different platforms.
  • Privacy-Focused
    Being an open-source project, ActivityWatch places a strong emphasis on user privacy, ensuring data is stored locally rather than in the cloud unless the user chooses otherwise.
  • Customizable
    The tool provides various frameworks and APIs for customization, allowing users to create custom trackers and reports to better fit their needs.
  • Detailed Analytics
    ActivityWatch provides comprehensive data and visualizations on how users spend their time on their devices, aiding in productivity analysis and improvement.

Possible disadvantages of ActivityWatch

  • Complex Setup
    For non-technical users, the initial setup and configuration may be complex and challenging compared to more polished, commercial solutions.
  • Resource Usage
    ActivityWatch can consume a notable amount of system resources, particularly on lower-end hardware, which might impact device performance.
  • Feature Limitations
    Compared to some commercial alternatives, ActivityWatch may lack certain advanced features like automated focus time recommendations or built-in integrations with other productivity tools.
  • UI/UX
    The user interface and user experience may not be as polished or intuitive as some of its proprietary competitors, potentially affecting user friendliness.
  • Maintenance
    Since itโ€™s an open-source project, ongoing maintenance and updates depend on community contributions, which might result in slower development cycles for new features and bug fixes.

RepDB features and specs

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

Analysis of ActivityWatch

Overall verdict

  • ActivityWatch is a good choice if you are looking for a privacy-respecting, customizable, and open-source solution for tracking your digital activities. Its detailed reports and ability to track various aspects of productivity make it a valuable tool for individuals interested in optimizing their time management.

Why this product is good

  • ActivityWatch is an open-source time-tracking tool that helps you understand how you spend your time across different activities and applications. It is designed to provide detailed insights and reports on your computer usage patterns, making it a good choice for productivity analysis. The tool is privacy-focused, as it stores data locally by default, ensuring that personal information is not shared without permission. Additionally, its extensible nature allows for customization and integration with other tools.

Recommended for

    ActivityWatch is recommended for remote workers, freelancers, productivity enthusiasts, and anyone looking to gain a deeper understanding of their computer usage patterns without compromising on privacy. It is also suitable for developers and tech-savvy users who want to customize or extend its functionality.

Category Popularity

0-100% (relative to ActivityWatch and RepDB)
Time Tracking
100 100%
0% 0
Datasets
0 0%
100% 100
Invoicing
100 100%
0% 0
Developer Tools
0 0%
100% 100

Questions & Answers

As answered by people managing ActivityWatch and RepDB.

What makes your product unique?

RepDB'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.

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 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.

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.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare ActivityWatch and RepDB

ActivityWatch Reviews

49 Best Timesheet Alternatives - Features, pros & cons, pricing | Remote Tools
ActivityWatch tracks how you spend time on your devices. It can help you keep track of time spent on different projects, kick bad screen habits, or just understand how you spend your time.

RepDB Reviews

We have no reviews of RepDB yet.
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Social recommendations and mentions

Based on our record, ActivityWatch seems to be more popular. It has been mentiond 59 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.

ActivityWatch mentions (59)

  • RewindOS โ€“ Searchable screen history for Linux local
    Hi HN. RewindOS captures your screen every few seconds, OCRs it, and makes everything you've ever seen instantly searchable โ€” all 100% local. No cloud, no account, no telemetry. MIT-licensed, and built specifically for Linux/Wayland. I started out using [ActivityWatch](https://activitywatch.net/), which is great at what it does โ€” but it tracks how much time you spend in each app, not what you actually... - Source: Hacker News / about 2 months ago
  • EFF Launches Age Verification Hub as Resource Against Misguided Laws
    Ah okay. I think this would probably be pretty tricky, security-wise, no? One of my first thoughts that might help would be writing a simple tool that parses history from your browsers to categorize it. Other than that, there are things like https://activitywatch.net/ (which seems to have a desktop and Android version). - Source: Hacker News / 8 months ago
  • Recall for Linux
    It's an actual useful feature, it's just the tracking by microsoft that makes it meh. I also track my activities with ActivityWatch (Open Source, https://activitywatch.net/) to remember missing time entries for billing clients. It's all local, so perfectly fine. - Source: Hacker News / 10 months ago
  • Show HN: Timelinize โ€“ Privately organize your own data from everywhere, locally
    Https://activitywatch.net/ gets you part of the way there. - Source: Hacker News / 10 months ago
  • Everyone knows all the apps on your phone
    > How hard would it be for an app to monitor all of your web traffic based on the title alone? Although not terribly accurate (because of the high variability of page titles), tools like ManicTime and ActivityWatch use windows titles to track your browser history if you don't install the browser plugin. https://www.manictime.com/ https://activitywatch.net/. - Source: Hacker News / over 1 year ago
View more

RepDB mentions (0)

We have not tracked any mentions of RepDB yet. Tracking of RepDB recommendations started around Jul 2026.

What are some alternatives?

When comparing ActivityWatch and RepDB, you can also consider the following products

RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.

Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.

ManicTime - Track your computer usage and use collected data to accurately tag time.

Rize - Rize is a time tracker that makes you more productive.

Clockify - Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.

LeechBlock - LeechBlock is an extension for Firefox and Chrome that allows users to block time-wasting sites.