Compare · online courses
Courses are scaffolding. Datum is the building.
Online courses teach you what to know. Datum helps you prove you can do it. The difference is the distance between a completion certificate and an interview story that lands.
“'I completed a course on…' is a claim. 'I built this, here, on these days, and it ran' is a receipt.”
The comparison
| What matters | Online courses | Datum |
|---|---|---|
| Output | Certificate of completion | Dated evidence cards + resume bullets you can explain |
| Practice | Quizzes and final projects (often ungraded) | Daily problems with mentor feedback, from novice to expert |
| Career guidance | None, or generic career center content | AI Coach with receipts, voice sessions, and transition pacing |
| Privacy | Platform sees all progress, may sell aggregate data | Zero-knowledge vault; platform cannot read your files |
| Pacing | Self-paced (often means never-finished) | One deliberate move a day; rest is part of the curriculum |
| Interview prep | Not included | Mock interviews, negotiation packs, and story practice |
| Cost | Roughly $15–$200 per course; subscriptions $30–$50/mo | Core product free; optional Re-enter at $79/mo |
| Signal to employers | “Completed X course” · easy to state, hard to verify | Demonstrated skill with date, difficulty, and artifact |
When to use courses: courses are excellent for learning a new domain from zero. Use them for the first month in a lane. Then move to Datum to turn that knowledge into evidence.
When to use Datum: when you need to build proof, get coaching on your specific situation, and pace yourself through a transition without burning out.
The evidence gap
Every hour spent re-sanding language that a machine can generate is an hour spent competing in a market where the price of the good is falling to zero. Every hour spent practicing · building, solving, rehearsing, shipping something small and dated · mints an asset whose value is rising, because scarcity is moving from polish to proof.
Start building evidence
Premium is included free. Practice, Coach, and Proof. One deliberate move a day.
Start free · Premium included