Free tools to build and grow apps
50 free calculators, checkers, and generators for app creators. Plan revenue, acquisition, retention, ASO, and AI costs. No signup required.
50 tools · free, no signup
Revenue and pricing
MRR and ARR calculator for SaaS
MRR (Monthly Recurring Revenue) is the normalized monthly revenue your SaaS earns from subscriptions, and ARR (Annual Recurring Revenue) is that number annualized (MRR x 12). Use the calculator below to work out your MRR, ARR, and a 12-month revenue projection that accounts for both growth and churn.
LTV, churn and LTV/CAC calculator
LTV (Lifetime Value) is how much revenue a customer generates across their entire relationship with your SaaS. It depends directly on churn: the lower your cancellation rate, the longer the lifetime and the higher the LTV. Use the calculator below to find your LTV, average customer lifetime, and LTV/CAC ratio.
App net revenue calculator
Estimate what remains of your app revenue after refunds, commission, entered taxes, and operating costs for the period.
App store commission calculator
Compare two app store commission rates on the same gross revenue and see the payout difference before taxes and costs.
Annual vs monthly subscription calculator
Compare expected revenue from one monthly subscriber with one upfront annual sale over the first 12 months, including churn and commission.
Lifetime vs subscription calculator
Compare a one-time payment with a subscription over a finite horizon, subtracting the cost of serving active users.
App MRR target calculator
Find how many active paying subscribers you need to reach a gross monthly recurring revenue target.
App break-even calculator
Calculate the minimum payers needed to cover monthly app costs using contribution per subscriber.
Subscription price increase calculator
Compare MRR before and after a price change and calculate the maximum payer loss that would preserve current revenue.
App CAC payback calculator
Estimate how many months of an active customer’s monthly contribution recover their acquisition cost.
Acquisition and ads
App CAC calculator
Add media, production, and acquisition team costs, then divide by new payers from the same period and scope.
Cost per install calculator
Compare cost per install across two channels using spend and attributed installs from the same window.
Cost per action calculator
Calculate the cost of a specific action, such as signup or purchase, and how many actions your budget can fund.
App ROAS calculator
Measure attributed campaign revenue per unit of media spend and compare it with your own target ROAS.
App campaign ROI calculator
Estimate campaign return after the cost of delivering the revenue and the acquisition expenses you enter.
Maximum profitable CPI calculator
Estimate a CPI ceiling from contribution LTV per payer, paid conversion, and the return you want to preserve.
App ad budget planner
Plan media spend for a new payer target using CPI, paid conversion, and an explicit budget reserve.
Click-through rate calculator
Calculate the share of impressions that produced clicks and the clicks a target CTR would require at the same volume.
Downloads to revenue target calculator
Turn a gross MRR target into payer and new install volume using your price and entered funnel.
UGC production budget calculator
Build a budget for creators, base videos, editing variations, and usage rights for an app campaign.
Retention and conversion
Subscriber churn calculator
Measure cancellations from the eligible starting subscriber base and the share of that base retained during the period.
Monthly to annual churn calculator
Convert a constant monthly churn rate into compounded annual loss and estimate the remaining base after 12 months.
Cohort retention calculator
Calculate point-in-time cohort retention: how many original users returned on your selected day or window.
DAU MAU ratio calculator
Compare unique daily active users with a compatible monthly window to measure usage frequency.
Trial to paid conversion calculator
Measure how many trials with completed windows converted into paid subscriptions and how many payments are needed for your target.
Paywall conversion calculator
Measure confirmed purchases among unique users exposed to a paywall, without mixing repeated impressions with people.
App refund impact calculator
Estimate the revenue balance after refunds and fees, selecting how much commission on refunded sales is recovered.
Cohort LTV calculator
Calculate accumulated revenue and contribution per original cohort user over a finite observed window.
ASO and experiments
App rating target calculator
Estimate how many new ratings at a chosen score are needed to reach a target average.
Average app rating calculator
Calculate the weighted average and distribution of your app’s one- to five-star ratings.
A/B test sample size calculator
Plan a per-variant sample to compare two conversion rates with equal allocation, a two-sided test, and a normal approximation.
A/B test significance calculator
Compare two proportions with a two-sided pooled z-test and inspect the difference, lift, and approximate p-value.
App experiment duration calculator
Estimate days to reach a per-variant sample using eligible daily traffic, two allocations, and conversion maturation.
App Store metadata checker
Check the length of your app name, subtitle, and keyword field before filling out App Store Connect.
Google Play metadata checker
Check the title, short description, and full description limits for your Google Play app listing.
App Store keyword formatter
Trim whitespace around commas and remove duplicate keywords while preserving phrases and your chosen order.
Validation and launch
SaaS niche validator
Validating a SaaS niche means checking, before you write any code, whether there is real demand, healthy competition, genuine willingness to pay, and a fit with your own unfair advantage. Answer the questions below to get a 0-100 score and a read on whether the niche is worth pursuing.
RICE prioritization calculator
Calculate a RICE score for an initiative using reach, impact, confidence, and effort over the same planning horizon.
App localization ROI calculator
Compare hypothetical incremental revenue from a new market with upfront translation and monthly support and operating costs.
App launch checklist
Organize validation, product, billing, store listing, and measurement before launch. Check your progress and export the list.
App marketing UTM builder
Build a campaign URL with source, medium, campaign, and optional fields, preserving existing parameters and fragment.
Deep link builder
Build a custom-scheme deep link with a destination and encoded parameters for testing app routes.
Subscription product ID generator
Generate consistent monthly and annual product IDs using a conservative convention of lowercase letters, numbers, dots, and underscores.
App MVP brief builder
Turn your audience, problem, core feature, pricing hypothesis, and channel into a copyable MVP brief. No AI or data uploads.
AI and infrastructure
AI token cost calculator
Estimate text inference cost using average tokens per request, volume, and input and output prices per million tokens.
AI app margin calculator
Inspect contribution per payer for an AI app after billing fees, inference, and other monthly variable costs.
Storage and bandwidth cost calculator
Estimate average storage and billable transfer, subtracting allowances with editable prices per GB.
Push notification volume planner
Plan push send attempts from eligible audience, frequency, days, and destinations per user.
API request budget calculator
Estimate monthly upstream API requests after caching and their cost at your entered billable unit rate.
AI credit pack pricing calculator
Calculate the minimum credit pack price to cover consumption, fixed sale cost, fees, and a desired margin on gross price.