Mailjet
MailChimp
Brevo
Campaign Monitor
Twilio
Mailgun
MailerLite
Constant Contact
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.
Mailjet 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, Mailjet seems to be more popular. It has been mentiond 4 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.
MailJet is a recent addition to the site. Mailing lists can get very expensive. In fact, the mailing list was by far the single most expensive item on this list but Mailjet helped with that. I started with Mailchimp, but they made pricing changes that made it incredibly expensive (for example, charging you for folks you can't communicate with because they unsubscribed). I then went to ActiveCampaign, which I used... - Source: dev.to / over 2 years ago
I moved from Mailchimp some years back because the cost was going to be a major burden, especially once they changed how they calculate their pricing (anyone you've been in contact with, even if they are unsubscribed and you aren't allowed to communicate with them, counts against your cap). At the time, ActiveCampaign was a cheaper but still full featured option. However, I never really needed all the features... - Source: dev.to / almost 3 years ago
I also would like to plug mailjet.com. I added email this week and I wanted an email provider with that ticked the following boxes:. Source: over 3 years ago
Email is hard. I spent a couple of days trying to figure out what would be a good fit for Disk Notifier. In the end, I settled for Mailjet. They showed leadership with creating MJML (an email template language) and support transactional email well. They also have a GUI for creating emails and a free tier. Source: almost 5 years ago
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Twilio - Brings voice and messaging to your web and mobile applications.
Mailgun - A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.
MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!