AppStock
How this calculator works
Most churn calculators just multiply your subscribers by your churn rate and call it a day. That's wrong, and it understates the damage. This calculator uses compound retention math — the same approach used by professional subscription analytics tools like ChartMogul, Baremetrics, and ProfitWell.
Each month, churn applies to the survivors of the previous month, not the original cohort. After 12 months of 8% monthly churn, you don't lose 96% of your subscribers — you lose about 63%. That's still bad, but the curve matters when you're projecting revenue.
Subscribers after N months = starting subscribers × retentionN
Revenue over N months = sum of (subscribers in month M × monthly price) for M = 0 to N−1
Once we know subscriber counts and revenue under both scenarios — your current churn rate vs. your target — the difference is what improving retention is actually worth.
What's a good churn rate? 2025-2026 industry benchmarks
Churn benchmarks vary dramatically by category. Comparing your mobile subscription app to a B2B SaaS benchmark will give you a misleading picture either way. Here are the real numbers from current industry sources:
| Category | Average monthly churn | Top quartile | Source |
|---|---|---|---|
| Mobile subscription apps | ~9% | < 3% | Marketing LTB · RevenueCat 2025 |
| B2B SaaS (SMB) | 3-7% | < 1% | Recurly · Paddle Q2 2025 |
| B2B SaaS (Enterprise) | < 2% | < 0.5% | CustomerGauge 2025 |
| B2C SaaS | 5-10% | ~3% | SubJolt 2026 |
| Streaming services | 5.5-6.7% | ~3% | WSJ Q1 2025 |
| Infrastructure SaaS | 1.8% | < 1% | Focus Digital 2025 |
A few patterns worth noticing:
- Mobile churn is higher than SaaS churn, often dramatically. This is normal — app store discoverability brings in users who never intended to commit, while SaaS buyers usually go through a more deliberate evaluation. Mobile founders shouldn't benchmark against SaaS numbers and feel discouraged.
- Annual plans cut churn roughly in half. If your churn is high and you're on monthly billing, switching some customers to annual is often the fastest improvement available.
- Top quartile is roughly half the average in every category. If your current churn is at the average for your category, halving it is realistic — top operators consistently hit it.
Voluntary vs. involuntary churn
The biggest preventable category of churn isn't customers who cancel. It's customers who would have stayed but whose payments failed. Expired credit cards, insufficient funds, processing errors — these create what's called "involuntary churn."
Recurly estimated the subscription industry faced $129 billion in potential revenue loss from payment failures in 2025. For most subscription businesses, involuntary churn accounts for 20-40% of total churn. Worse, it's almost entirely fixable through dunning campaigns and card-update flows.
If you don't have dunning (automated payment retry) set up, that's usually the highest-ROI churn fix available. Stripe Smart Retries, RevenueCat's grace periods, and Apple/Google's billing retry mechanisms all help. Setting these up is often a weekend of work and can recover 15-30% of your churn immediately.
Five proven ways to reduce churn
In rough order of impact for most subscription apps:
- Fix involuntary churn first. Add dunning, grace periods, and card-update prompts. As mentioned above — usually the easiest 15-30% recovery.
- Improve onboarding to the "aha moment." The activation event that predicts retention. For a fitness app it might be logging 3 workouts; for a calendar app it might be syncing the first calendar. Apps that delay this see dramatically higher day-1 churn.
- Offer annual plans with real discounts. RevenueCat data shows annual subscribers retain 2-3x longer than monthly. A 20-30% annual discount more than pays for itself in reduced churn.
- Re-engage before cancellation, not after. Push notifications about value (new features, usage milestones) work better than cancellation flow interventions. The latter are too late.
- Survey churners and act on patterns. A two-question exit survey ("why are you leaving?" + "what would have kept you?") collected over 100+ cancellations will reveal patterns that point to specific product gaps.
How churn affects your app's valuation
This is where the calculator's "valuation impact" number comes from. Churn is the single biggest driver of valuation multiples in subscription businesses, often more important than growth rate or revenue size.
Here's why: when a buyer values a subscription app, they're not just paying for current revenue. They're paying for the expected stream of future revenue. Lower churn means that stream extends further into the future, so each dollar of current revenue is worth more.
| Monthly churn | Implied annual retention | Typical multiple range | Buyer verdict |
|---|---|---|---|
| 10%+ | ~28% | 0.5-1.2x ARR | Discount territory |
| 7-10% | 28-42% | 1.2-1.8x ARR | Below average |
| 4-7% | 42-61% | 1.8-2.5x ARR | Acceptable |
| 2-4% | 61-78% | 2.5-3.5x ARR | Strong |
| < 2% | > 78% | 3.5-5x+ ARR | Premium |
Two apps with identical $50K MRR can have completely different valuations:
- App A — 9% monthly churn → ~$600K-900K valuation (1.0-1.5x ARR)
- App B — 3% monthly churn → ~$1.5M-2.1M valuation (2.5-3.5x ARR)
That gap — sometimes 2-3x the entire enterprise value — comes from nothing more than retention. It's why churn is worth obsessing over before you sell.
The valuation impact figure in the calculator above is computed using the same multiples framework as AppStock's valuation methodology, applied to the revenue difference between your current and target retention rates.
A note on cohort vs. blended retention
Sophisticated buyers will look at your cohort retention curves, not just your blended monthly churn rate. Cohort retention shows how each month's new subscribers retain over time — whether your product is actually improving for new users, or just being propped up by old loyal subscribers.
If your blended monthly churn is 5% but your most recent cohorts are churning at 12%, buyers will use the higher cohort number for valuation. Always check both before you talk to acquirers.