Subscription vs One-Time Purchase: Which Model for an App?
How to choose between subscription and one-time purchase for your mobile app? Here are the criteria that actually matter, with real numbers.
If your app has recurring server costs per user, go with a subscription. If it runs locally with no backend, go with a one-time purchase. Inner Gallery has zero server costs, so users pay once.
When I built Inner Gallery, the business model came up very early. Competitors (Keepsafe, Private Photo Vault) all charge a subscription -- between 3 and 10 dollars/month. For an app that runs 100% locally.
When a Subscription Actually Makes Sense
Subscriptions aren't inherently bad. They're justified in three specific cases.
You Have Real Recurring Costs
If your app uses servers, cloud storage, or paid APIs, a subscription makes sense. Keepsafe Photo Vault generates about $700,000/month with this model because they store terabytes of encrypted photos.
You Provide Regular Content
Apps like Day One (roughly $350,000/month according to Sensor Tower) justify their subscription through cloud sync and frequent new features.
Your Product Is Constantly Evolving
Spotify, Netflix, or even Figma: their value increases every month. New artists, new shows, new features. Users pay for a service that grows.
Subscriptions work when you regularly deliver new value. Without that, it's disguised theft.
When a One-Time Purchase Is More Honest
For Inner Gallery, the choice was obvious: one-time purchase. Why? The app works entirely locally. Zero servers, zero external APIs, zero recurring costs on my end.
Charging a subscription for an app that runs on the user's iPhone without consuming anything external is dishonest. Full stop.
Local Apps
Calculators, offline photo editors, local password managers: if your app doesn't need any external service to function, a subscription has no justification.
Professional Tools
Developers gladly pay $50 once for Paw or Proxyman. These tools save them hours. A one-time purchase is clean and transparent.
Long Lifespan
I designed Inner Gallery to last at least 10 years. 6,325 lines of Swift/SwiftUI, zero external dependencies. Once purchased, it works indefinitely. That's the value of a one-time purchase.
User Psychology Matters
Users hate unnecessary subscriptions. The RevenueCat 2024 report shows that 68% of users prefer paying more upfront rather than monthly.
Why? They feel in control of their money. With an unjustified subscription, they feel held hostage.
A user satisfied with a one-time purchase becomes your best ambassador. A user forced into a subscription becomes your worst detractor.
My Choice for Inner Gallery
For Inner Gallery, I chose the one-time purchase model. A free version with the basics, and paid packs to unlock advanced features. No subscription.
The app runs 100% locally, with no server to fund. Imposing a monthly subscription for an app that costs me nothing to run would not be honest.
How to Decide for Your App
Ask yourself these questions:
- Do you have real recurring costs? Servers, APIs, content...
- Do you deliver new value every month? Not bug fixes -- real value.
- Does the user get their money's worth in the long run?
If you answer no to any of these, a subscription is probably not justified.