Market Size for Todo app in 2026 [Example]

The global app market is growing rapidly, with over 1.5 billion smartphone users estimated to use productivity apps like to-do lists.

Assuming an average annual spend of about $32 per user on such applications (including subscriptions, one-time purchases, and in-app purchases), the overall TAM can be calculated as 1.5 billion users multiplied by $32, resulting in a TAM of $48 billion.

This figure considers users who are actively looking for productivity solutions, which includes a wide array of possible customers beyond just your direct competitors.

Narrowing down to the Serviceable Addressable Market (SAM), I focus on users specifically interested in to-do apps.

Research suggests that around 10% of smartphone users utilize productivity apps actively. This reduces our user base to 150 million potential customers. Multiplying that by an average spend of about $32 per user gives a SAM of $4.8 billion, which represents the reachable market given your business model and the target audience.

This figure underscores the limitation of capturing everyone but highlights a realistic segment that your to-do app can effectively reach.

For the Serviceable Obtainable Market (SOM), I'm considering a realistic capture rate of around 1% of the SAM during the first year.

Taking the 150 million prospective users from SAM, capturing 1% translates to about 1.5 million customers.

If each user spends $32 annually on the app, the first-year revenue potential amounts to roughly $48 million. This figure is conservatively optimistic, reflecting a feasible market entry strategy for your to-do app.