What does it cost to build an app like Calm?
Sample range · freelance
$24k–$51k
An agency would be $43k–$113k 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
The content is produced, not generated — narration, music licensing, and sound design for every session sit upstream of the app itself.
Offline playback for sleep content has to survive airplane mode without breaking a paying user's bedtime routine.
Personalization — recommending the right program for someone's stated goal — needs a real recommendation layer, and a habit-forming daily product lives or dies on reminder and streak mechanics being reliable.
The cheapest honest version of this idea is streaming only, no mood tracking, fixed program menu instead of personalized recommendations. That lands nearer $17k–$36k.
Your app is not Calm. 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