All screens Learner · Platform

Downloads, storage & sync queue

Content is cached in SQLite plus the file system from one GET /course/:courseId/offline-manifest call. Writes go the other way: completion and playback position queue locally with an idempotency key and replay through POST /course/:courseId/sync. Completion is monotonic, so a retry can never corrupt a record — which is exactly why offline exercises are deferred to v2.

← Offline lesson Download a course → Profile →
Downloads
3 courses · 284 MB used
Storage on this device 284 MB of 3.7 GB free
Forklift 84 MB Fire Safety 112 MB GDPR 88 MB

Downloading

Hazardous Materials Handling
Lesson 5 of 8·48 MB of 96 MB
50%

On this device

3
Forklift Safety Recertification
12 lessons·84 MB·Synced 2h ago
Warehouse Fire Safety
8 lessons·112 MB·Synced 2h ago
Data Protection & GDPR Essentials
Completed·88 MB

Settings

Download over Wi-Fi only
Protects your mobile data
Auto-download required training
When new compliance courses are assigned
Video quality offlineStandard (480p)
Downloads & storagePer-course breakdown, resumable progress, and Wi-Fi-only by default. Nothing is silently evicted — the learner chose to download it.
Sync queue
Back online · syncing
Lesson 4 completed
Forklift Safety·Queued 18:31
Synced
Lesson 5 completed
Forklift Safety·Queued 18:40
Synced
Playback position 7:02
Lesson 5·Queued 18:47
Syncing
Lesson 6 completed
Retrying in 8s · attempt 2 of 5

What syncs offline

Lesson completionQueued offline
Playback positionQueued offline
Exercise answersOnline only
Community postsOnline only
Completion only ever moves forward, so replaying a queued change twice is harmless. Grading and submissions stay online to keep assessment records unambiguous.
Sync queueEvery queued intent is visible with its state and retry count — the learner can see their work is safe rather than hoping.