Start a project
Free tools

Free tools to plan, build and publish your app

Free developer tools we built for the questions people ask us most: how do my link previews look, what will it cost, and what does Google Play require? They run in your browser, with no sign-up and no email gate.

Open Graph & social meta tag generator

Generate and test Open Graph, Twitter Card, and SEO meta tags with live previews for Google, X, LinkedIn, and Facebook.

  1. Enter your page URL, title, meta description, and 1200x630 Open Graph image.
  2. Preview your live card across Google Search, X (Twitter), LinkedIn, Facebook, and Discord.
  3. Export production-ready tags for HTML, Next.js App Router, Astro, or JSON-LD schema.
Open the tool

Google Play & App Store fee calculator

Calculate your exact take-home payout, compare standard 15% vs 30% cuts, and test if external billing saves money.

  1. Select Google Play or Apple App Store and enter your estimated monthly revenue.
  2. Compare standard 15% vs 30% commission cuts against external Stripe billing.
  3. See your true net take-home payout, annual projections, and fee breakdown.
Open the tool

App cost calculator

Estimate a price range for an Android app or website from its features, in your local currency.

  1. Pick what you are building and tick the features you expect.
  2. The tool maps your choices to DEESU's published package ranges and shows an estimate in your local currency.
  3. Use the number to plan a budget, then request an exact quote for the real scope.
Open the tool

Google Play launch checklist

An interactive checklist covering the store listing, policies, quality checks and release steps.

  1. Work through the sections: store listing, policies and compliance, app quality and release.
  2. Tick items off. Your progress is saved in your browser, so you can come back to it.
  3. Print the page for a team review before you submit your first release.
Open the tool

Project brief generator

Answer a few questions and get a clear, copyable brief you can send to any development team.

  1. Answer guided questions about your goal, users, features, timeline and budget.
  2. Watch a clear brief build as you type, then copy it, download it, or send it to DEESU.
  3. Use the same brief with any agency, so quotes are easy to compare.
Open the tool

App privacy policy generator

Answer a few questions and get a plain-English privacy policy and a delete-account page for your Android or iOS app.

  1. Describe your app, the data it collects and the services it uses.
  2. Get a plain-English privacy policy and a matching delete-account page for Google Play.
  3. Copy it as text, HTML or Markdown, or download it as a file.
Open the tool

App icon generator

Upload one image and download every Android, iOS and favicon size, with adaptive icon safe-zone checks.

  1. Upload one square image and pick a background colour and padding.
  2. Check the circle, squircle and teardrop previews and the adaptive safe zone.
  3. Download every Android, iOS and favicon size in one ZIP.
Open the tool

Play Store listing optimizer

Check your title, short and full description against keyword, readability and Google Play policy rules.

  1. Enter your title, short and full description and your target keywords.
  2. See keyword coverage, readability, repeated words and Google Play policy warnings.
  3. Preview the listing, tick off the graphics checklist and copy a short report.
Open the tool
Why we built them

The questions that come up every project

Before any engagement, we usually answer the same three questions. A founder wants a rough budget before they talk to anyone. A first-time publisher wants to know what Google Play will check before it accepts their app. And almost everyone struggles to put a project into words clearly enough for a team to quote it accurately.

These tools turn our answers into something you can use on your own, whether or not you ever work with us. The estimate is explained and based on our published packages. The checklist reflects the compliance steps we complete for our own apps. The brief generator produces a document any development team can price from.

Nothing here replaces a conversation about your actual project. When you are ready for one, the brief builder on our contact page sends it straight to an engineer, who replies within one business day.

Reply within 1 business day

Tell us what you're building.

Send the problem, not a polished brief. We'll tell you what it actually takes to ship it: stack, timeline and cost, before you commit to anything.

Start a projectBook a 20-minute callWhatsApp us