With your app's numbers, see how each lever (ad spend, churn, CPI, install-to-paid conversion and LTV) changes your revenue over the next 12 months.
Use it as a guide to scale with confidence.
$20M+Generated150+Companies6 yrsRunning
Your numbers
Current revenue. What your app bills per month today. Not used in the calculation: it only compares today with the projection.
$
Optional. We only use it to build the comparison from where you are today to where you can get.
Subscription price. What each subscriber pays per month. Where to find it: your pricing page / app store.
$
Gross margin. Price minus payment/store fees and the cost to serve each user. Where to find it: your finance / P&L.
%
Subscription price minus payment/store fees and the cost to serve each user.
Ad spend. Monthly budget on paid ads. Where to find it: your ads manager.
$
Funnel & churn
CPI. Average cost of each app install. Where to find it: ads manager / MMP.
$
Conversion. Of every 100 installs, how many become paying subscribers. Where to find it: your app analytics.
%
Churn. % of subscribers who cancel each month. It sets the average lifetime (1 ÷ churn) and caps LTV.
%
Share of subscribers who cancel each month.
Agency retainer. Optional. If you pay an agency or media-buying service, it's included in net profit. Leave blank if you don't.
$
Optional. Included in net profit.
Fill in your numbers to see your projection
Complete price, margin, ad spend, CPI, conversion and churn. Your MRR, CAC and LTV projection and your growth potential will appear here.
Where you are today
Ad spend
$$
mo / day
Installs
mo / day
New subscribers
per month
CAC
$
cost per subscriber
LTV
$
gross-margin adjusted
LTV : CAC
healthy ≥ 3x
Payback
months to recover CAC
MRR · month 12
$
recurring, after churn
Monthly profit · mo 12
$
MRR margin minus ad spend
Where you could be
Same budget, with your funnel in the healthy market range. Toggle the levers to see the impact:
MRR · month 12
→
LTV : CAC
→
healthy target ≥ 3x
Net profit · mo 12
→
Scaling scenarios
As you raise the budget, CPI climbs (you saturate high-intent installers and start buying colder traffic), so CAC rises and the LTV:CAC ratio compresses. The table already bakes in that gradual increase. It's intentional, and it's how it works in the real world.
Scaling levers
You can grow by pulling four levers. It's not just "spend more".
CAC ↓
Lower CAC
Better creative and targeting reduce cost per subscriber.
Churn ↓
Reduce churn
Keeping users longer raises LTV without spending more on ads.
LTV ↑
Raise LTV
Pricing, upsell and annual plans raise value per subscriber.
Budget ↑
Scale the budget
With healthy unit economics, more budget turns into more MRR.
Founders who've grown with Loocro
Video testimonials and real results.
Subscription app
B2B workplace-safety app. Over 6 years, MRR grew 20x, with churn under 1.5% and 80%+ of leads coming from paid traffic. Renan Cerato · CEO · OnSafety
B2B marketplace: from 3 founders to a 35–40 person team in 2.5 years. We prioritized seller acquisition to crack the marketplace chicken-and-egg, until the company was acquired by a fund. John · Founder & CEO · Tiffins
AI hair try-on app. From zero, with no market validation, to 1,000+ installs in the first month at a very low CPI. Yasmin & Felipe · Provador de Cabelo
$20M+Generated150+Companies6 yrsRunning
A projection based on your numbers, not a promise of results. Real outcomes depend on execution, offer and market.
This is a projection, not a guarantee. Real results depend on your app, onboarding, pricing, store ranking, seasonality and execution. LTV here is gross-margin adjusted and capped by churn: average subscriber lifetime is 1 ÷ monthly churn, so 5% churn means a 20-month lifetime, not forever. CAC comes from spend ÷ new subscribers, and month-12 MRR compounds new subscribers minus each month's churn. As you scale, CPI rises because audiences saturate, so a healthy LTV:CAC does not hold linearly. Use it as a compass, not a contract.