How 'free' subscription apps make money
Free-tier subscription apps typically use one of three monetisation strategies: a percentage of subscription revenue (deducted on every renewal order), a volume-based cap that forces upgrade once you reach a subscriber threshold, or feature gates that make the free tier non-viable for production use. The percentage model is the most common and the most expensive at scale — 1.5% of a $15k MRR business costs $225/mo, more than most paid flat-rate alternatives.
- Percentage of revenue: free until you grow, then increasingly expensive
- Volume caps: free up to 50 or 100 subscribers, then requires upgrade
- Feature gates: portal, dunning, or analytics locked behind paid tiers
When a free plan is actually worth using
A free plan makes sense in a narrow scenario: you are validating whether subscriptions work for your store before committing to any monthly cost, you expect fewer than 50 subscribers during the test period, and you accept that you will migrate to a paid app once the model is proven. Using a free plan as a permanent operating model once your subscription revenue is material is almost always the wrong financial decision.
The 30-day free trial alternative
A 30-day free trial on a paid app gives you the full product experience — including features that free plans gate — without committing a percentage of revenue. You can process real subscriptions, evaluate the portal, test dunning, and build confidence in billing reliability before you pay anything. This is usually a better evaluation path than a free plan that limits what you can actually test.
- Full product access — no gated features to discover post-signup
- Real subscriptions through real checkout — not a sandbox simulation
- No percentage of trial revenue charged — your subscribers' money is yours
Flat fee vs percentage: the long-term maths
At $5,000 MRR, a 1.5% fee costs $75/mo — similar to a flat $79/mo app. At $10,000 MRR, the percentage costs $150/mo. At $20,000 MRR, it costs $300/mo. At $50,000 MRR, it costs $750/mo. The flat-fee app costs $79/mo at every revenue level. If your subscription programme is working, the flat-fee option becomes the obvious financial choice well before you hit significant scale.
What to look for in a trial before committing
Use the free trial to test the things that are hardest to migrate later: the customer portal experience, dunning behaviour on failed payments, and analytics accuracy. These are the areas most likely to cause pain if the app is not a fit. Also verify that migration tooling exists — if you start your subscription programme on one app and need to move, the quality of the migration process determines whether your subscriber base transfers cleanly or whether you need to ask customers to re-subscribe.
- Test the portal as a subscriber: skip, swap, update payment, pause
- Trigger a test failed payment to verify dunning and notification behaviour
- Confirm analytics are tracking MRR and churn accurately before going live