Certopus is a certificate management platform where you can design, bulk generate, bulk deliver and verify smart certificates.

Certopus incorporates these features with which you can streamline your certificate issuance: ->Tamper Resistant Certificates: Certopus-generated certificates are tamper-resistant, and even minor tampering is easily detected, so you don't have to worry about certificate forgery.

->Template Engine: We have a very quick and easy Certificate editor that allows you to create beautiful certificate designs. You can use our rich certificate library or your own templates.

->Bulk Generation: You can generate high-quality certificates in pdf format in bulk on Certopus. You have to upload an excel spreadsheet with the recipient data and generate certificates in minimal time.

->Mass Mailing: Certopus makes distributing certificates effortless. You get a mail editor to include your personalized email content, as well as the ability to schedule when your certificates should be delivered.

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.