What does it cost to build an app like Notion?
Sample range · freelance
$42k–$94k
An agency would be $76k–$200k for the same scope. This is a pre-computed sample, not your estimate. Your version is probably smaller.
Where the money goes
Why this kind of app is expensive
A block-based editor where every paragraph, table, and embed is its own draggable unit is genuinely hard to build correctly — closer to a small operating system for documents than a text box.
Real-time multiplayer editing means conflict resolution has to be solved properly when two people type the same paragraph at once, not approximated.
Letting users build databases and relations inside documents blurs the line between a note-taking app and a spreadsheet engine, and offline support means reconciling edits made with no connection at all.
The cheapest honest version of this idea is single-player documents only, no real-time multiplayer, no offline sync. That lands nearer $28k–$62k.
Your app is not Notion. Get the range for what you are actually building.
Not open yet
Launching this weekend.
The free range, the $79 spec and the $199 execution pack all open then. Nothing to sign up for — come back and paste your idea.
Same maths, other archetypes