Introducing Growth Bug Tools & Resources: 47 free growth tools and a map of the growth stack

For over a decade, Growth Bug has been where I write down what I learn building and growing apps — from Paytm to indiagold. Today it becomes more than a blog: I'm launching 47 free growth tools and a directory of 120+ growth platforms. No sign-up, no paywall.

Start here: check your SEO score, grade your App Store listing or prioritise your roadmap. See all 47 tools →

Why build tools?

Most growth questions I get are the same: Is my App Store listing any good? Why is my site slow? Is my LTV:CAC healthy? Did my A/B test actually win? What should we build next? Answering them usually means juggling paid tools, spreadsheets and guesswork. So I built the checks, calculators and AI helpers I wish I'd had.

What's inside

App growth

• App Store Listing Checker — score any App Store or Play Store listing with a fix list.
• Competitor App Compare — two listings side by side.
• Google Play Keyword Ideas — keyword ideas for your Play Store listing.
• App Store Copy Writer — titles, subtitles and descriptions written for you.
• App Review Insights — turns hundreds of reviews into a priority list.

Website & SEO

• SEO Score Checker — an on-page SEO score with fixes.
• Page Speed Test — phone and desktop speed scores.
• AI Search Readiness Checker — can ChatGPT, Claude and Perplexity read and cite your site?
• Share Preview Checker — how your link looks on LinkedIn, X and WhatsApp.
• Meta Tag Generator — ready-to-paste title, description and social tags.
• Landing Page Reviewer — AI review of your message, proof and call to action.
• Pricing Page Checker — find what makes buyers hesitate.

Content & copy

• Content Analyzer — readability, length and structure.
• Headline Analyzer — score and rewrite headlines.
• Blog Outline Generator — an SEO-ready outline in seconds.
• Push & Email Copy Tester — score push messages and subject lines.

Product & strategy

• RICE & ICE Prioritisation Scorer — rank your roadmap.
• North Star Metric Builder — your North Star and the metrics that drive it.
• OKR Writer & Checker — sharp OKRs, or a check of yours.
• PRD Writer — an idea turned into a one-page spec.
• TAM SAM SOM Calculator — size your market.
• Pricing Tier Simulator — model revenue across plans.
• Competitor Teardown — positioning, pricing and gaps.
• Jobs-to-be-Done & Persona Builder — who your users are and why they hire you.
• User Interview & Survey Generator — unbiased research questions.
• Onboarding Flow Reviewer — find friction in sign-up and first use.
• Launch Checklist Generator — Product Hunt, app stores and PR.

Experiments

• Growth Experiment Ideas — 8 ideas ranked by impact per effort.
• Experiment Brief Generator — hypothesis, metric and guardrails.
• A/B Test Sample Size & Duration — how long to run a test.
• A/B Test Significance Calculator — did it actually win?
• A/B Test Result Explainer — a plain-English verdict.

Growth maths

• CAC / LTV Calculator — unit economics at a glance.
• CAC Payback & Budget Planner — payback months and channel budgets.
• Retention Curve Calculator — see where users drop off.
• Cohort Retention Table — month-by-month cohorts.
• DAU/MAU Stickiness — how habit-forming your app is.
• Funnel Conversion Calculator — find the leakiest step.
• Growth Model & 12-Month Forecast — project users and revenue.
• Churn & MRR Calculator — revenue churn and growth.
• Viral K-Factor Calculator — is growth compounding?
• Referral Programme Designer — reward size vs K-factor and CAC.
• NPS & CSAT Calculator — score customer surveys.
• UTM Link Builder — clean campaign links.

India fintech

• UPI Market Share Tracker — PhonePe, Google Pay, Paytm and more from NPCI data.
• Gold Loan Calculator — maximum loan under RBI's loan-to-value rules, plus interest and EMI.

Also see the full UPI & payments data section.

Growth Resources: the growth stack, mapped

The Growth Resources page lists 120+ platforms growth teams actually use — analytics, attribution, ASO, SEO, experimentation, CRM, email, ads, customer data, research, referrals, social, launch communities, monetization, AI tools and AI video & content creation — each one click away.

Use it inside your AI assistant

Growth Bug also works inside ChatGPT, Claude and Cursor. Add https://growthbug.com/mcp as a connector and your assistant can search every Growth Bug article and run the SEO, AI readiness, App Store, experiment and unit-economics tools for you.

What's next

If there's a tool you'd use every week, or a platform missing from the list, tell me on LinkedIn or X — I'll build the most-requested ones next.