ADL Open Source LRS vs Cluelabs LRS

ADL Open Source LRS stores learning data collected through the Experience API, or xAPI. The repository says this version conforms to IEEE 9274.1.1, also known as xAPI 2.0, and describes it as stable but intended for proof-of-concept use with a small number of users. It is free and distributed under the Apache License, Version 2.0.

Docker and Docker Compose are the recommended installation route. The deployment includes a Django web service using uWSGI, an nginx HTTP/HTTPS proxy, PostgreSQL, RabbitMQ, and Redis. OAuth is off by default; the project describes enabling it with the OAUTH_ENABLED setting and registering clients with the LRS. Optional webhooks can filter incoming statements and send matches to a client endpoint, and they are disabled by default. A webhook can include a secret used to send an HMAC hex digest in the X-LRS-Signature header. Celery handles activity metadata retrieval, statement voiding, and LRS hooks asynchronously. Database settings can be changed in settings.ini. The Docker guide describes an included Certbot container for obtaining a certificate for a public domain and restarting nginx to use it.

Cluelabs LRS is a cloud learning record store that collects, stores and analyzes learning activity through xAPI. It can complement an LMS or work as a separate tracking repository, using the official xAPI 1.0.3 standard. The service can ingest statements from Storyline, Rise, Captivate, custom web simulations, mobile learning apps and VR headsets. Reports can examine cmi.interaction measures, including learner responses, selected distractors and latency. Records are filterable by date range, course or learner, with CSV downloads. Courses can be hosted on corporate intranets, public documentation sites, standalone portals or LMS platforms. Cluelabs lists integrations for Articulate Storyline, Articulate Rise, Adobe Captivate and custom web learning applications. Incoming data is transmitted over encrypted HTTPS and stored in isolated Google Cloud Platform zones; customers can select a country and, in some cases, a region for storage. The Free plan provides 5,000 monthly credits and an estimated 500 Analytics/LRS events if reserved for Analytics. Paid pricing is listed from $6.95/mo.