Subscription app revenue calculator
Project 12 months of subscribers, recurring revenue, and contribution from installs, trial conversion, churn, and costs.
Model your first 12 months
One monthly subscription, steady acquisition, and zero starting subscribers. Replace the sample assumptions with your own.
Held constant across the 12-month forecast.
Subscription price before fees and refunds.
Share of new installs that start a trial.
Share of trial users who become paying subscribers.
Retention and costs
Share of existing subscribers lost before the next bill.
Blended acquisition cost across all new installs.
Applied after refunds; use your effective rate.
Refunded value as a share of gross receipts.
Hosting, software, and other monthly overhead.
USD throughout. Sample conversion, churn, and fee percentages are assumptions, not benchmarks or quoted vendor prices.
Month 12 gross MRR
$13,818
1,383.2 paying subscribers at month-end
Gross MRR over time
Across all 12 months
- Gross receipts
- $103,325
- Net receipts after refunds & fees
- $85,192
- Acquisition spend
- $45,000
- Fixed costs
- $6,000
12-month break-even CPI: $1.32
The highest blended CPI that keeps cumulative profit at zero over these 12 months. It includes every monthly cohort’s receipts within this horizon.
Read the projection correctly
At each month-end, existing subscribers churn, the new paid cohort joins, and every remaining subscriber pays once. New subscribers first face churn the following month. Trial conversion happens within the acquisition month; fractional subscribers represent expected averages.
MRR is the recurring monthly value at that point in time. Receipts are payments modeled for a period; the two match for each month under this simple monthly billing convention. Refunds reduce receipts but do not independently change subscriber counts. Annual plans, tax, billing delays, fee tiers, and additional usage costs are excluded.
Month by month
USD · rounded for display · full precision in CSV
| Month | Subscribers | Gross MRR | Net receipts | Profit | Cumulative profit |
|---|---|---|---|---|---|
| 1 | 175 | $1,748 | $1,441 | -$2,809 | -$2,809 |
| 2 | 336 | $3,357 | $2,768 | -$1,482 | -$4,291 |
| 3 | 484.1 | $4,836 | $3,988 | -$262 | -$4,553 |
| 4 | 620.4 | $6,198 | $5,110 | $860 | -$3,693 |
| 5 | 745.8 | $7,450 | $6,143 | $1,893 | -$1,801 |
| 6 | 861.1 | $8,602 | $7,093 | $2,843 | $1,042 |
| 7 | 967.2 | $9,662 | $7,967 | $3,717 | $4,759 |
| 8 | 1,064.8 | $10,638 | $8,771 | $4,521 | $9,279 |
| 9 | 1,154.6 | $11,535 | $9,511 | $5,261 | $14,540 |
| 10 | 1,237.3 | $12,360 | $10,191 | $5,941 | $20,481 |
| 11 | 1,313.3 | $13,120 | $10,817 | $6,567 | $27,048 |
| 12 | 1,383.2 | $13,818 | $11,393 | $7,143 | $34,192 |
How to use this tool
Describe the funnel
Set monthly installs, the share starting a trial, and the share of trials becoming paid subscriptions.
Set price and costs
Add a monthly price, subscriber churn, fees, refunds, acquisition spend, and fixed operating costs.
Review the full year
Compare the monthly subscriber and revenue trajectory with the cumulative costs. Export the projection for further planning.
A monthly subscription scenario
The model starts with no subscribers and adds the same number of new paying subscribers each month. Existing subscribers churn before new subscribers are added. Every active subscriber is billed once in the modeled month; trial timing is simplified into that monthly period.
Recurring revenue and cash have different jobs
MRR describes the recurring monthly revenue of active subscriptions before deductions. Cumulative revenue adds the modeled billings across months. This tool models monthly plans only; annual prepayments, plan changes, trial delays, and cohort-specific renewal patterns need a more detailed model.
A few useful details
Are the starting conversion and churn rates benchmarks?
No. They are illustrative inputs. Use your own trial, paid-conversion, and renewal data where possible, and compare several plausible scenarios before planning a budget.
Are RevenueCat or other vendor fees included automatically?
No vendor pricing is fetched or inferred. Include applicable costs in your inputs and check the provider's billing basis separately. Platform fees and vendor fees may apply to different revenue amounts.