Free · browser based · no account
Mobile app growth tools that produce a useful next step
Check listing copy, prepare icon exports, and model acquisition, conversion and monetization using your own assumptions. Results appear before any enquiry.
App Payback & Break-even CPI Calculator
Model cohort retention, net contribution and acquisition payback. Calculate break-even CPI with your own assumptions, privately in your browser.
Open toolASO A/B Test Sample Size & Experiment Planner
Plan an app listing A/B test with baseline conversion, detectable uplift and traffic. Export the sample size, timing and experiment assumptions.
Open toolFree Google Play Feature Graphic Generator
Create a 1024×500 Google Play feature graphic with your own text, colors and local image. Preview and download an opaque PNG without signup.
Open toolASO metadata checker
Check Apple App Store and Google Play metadata limits, repetition and formatting.
Open toolApp icon resizer
Crop or contain one source image and export a private, local PNG icon pack.
Open toolScreenshot validator & resizer
Check app-store screenshot dimensions and export a local resized PNG pack.
Open toolApp install budget planner
Model CPI, installs, activation, retained users and costs per outcome.
Open toolApp funnel calculator
Find stage conversion, drop-off and the overall rate using your own cohort.
Open toolAdMob revenue planner
Model format-level ad revenue without connecting an AdMob account.
Open toolApp launch readiness planner
Check prerequisites and export the missing work in priority order.
Open toolPrivate working inputs, transparent methods
The tools calculate and process files in your browser. Vmobify's normal anonymous site analytics may record that a tool was started, produced a result, exported a file or led to a service page; the values, pasted metadata and images are not analytics parameters. Each page explains its assumptions and where human review is still needed.