App Store and Launch

Sizes, rules, checklists and examples for shipping and announcing an app, each checked against Apple's and Google's own pages.

• Checklist

  App Launch Checklist

  60 tasks from eight weeks before launch to day 30, each with why it matters and where to do it.

• Reference

  Apple Developer Program 2026

  What an Apple developer account costs in each country, how enrollment works for individuals and organizations, and what the membership includes.

• Reference

  App Store Screenshot Sizes

  Every screenshot and app preview size for the App Store and Google Play, in pixels, with what is required.

• Reference

  App Preview Video Specs and Guidelines

  Every App Store app preview spec in one place: length, formats, frame rate, audio and the accepted size per device, plus Apple's rules, a shot plan and live examples.

• Examples

  App Store Screenshot Examples

  25 live screenshot sets described frame by frame and grouped by pattern, with Apple's rules, 24 caption ideas and what the tools cost.

• Guide

  App Store Marketing Guidelines

  Apple's badge, device frame, rating and review rules in plain words, with a link to each source.

• Examples

  App Release Notes Examples

  20 release notes you can copy for bug fixes, features, redesigns and first releases, with the character limits for both stores.

• Examples

  App Update Announcement Examples

  33 copyable announcements for social, email, in app and push, with the length limit for each channel.

• Examples

  App Launch Announcement Examples

  26 launch posts and captions by network, a launch week calendar, and how to link to the App Store from each one.

• Examples

  Mobile App Marketing Examples

  26 real apps, famous and indie, grouped by tactic, each linked to its source, with a table of what every tactic costs to copy.

• Reference

  App Store Statistics 2026

  Apps, downloads, updates, revenue, app review and search numbers for 2026, each with its publisher, period and link.

• Original Research

  How Often Do Apps Update? 2026 Study

  Our snapshot of 4,756 top US iPhone apps: days since the last update by chart, category, app size and weekday, with the data to download.

• Benchmarks

  App Retention Rate Benchmarks 2026

  Day 1, day 7 and day 30 retention by category and platform, game and subscription benchmarks, the formula and how to read your own numbers.

• Reference

  Mobile Game Market Statistics 2026

  Mobile game market size, monthly revenue, share by platform and country, top grossing games, genres, downloads and players, each with its publisher and period.

• Guide

  App Store Age Ratings

  The 4+, 9+, 13+, 16+ and 18+ tiers, the full questionnaire, regional ratings and age assurance rules, each linked to its source.

• Guide

  How Long Does App Store Review Take?

  Apple's review time targets, live 2026 wait times by month and weekday, every status explained, and what to do when an app is stuck in Waiting for Review.

• Guide

  App Store Rejection Reasons

  Apple's 2025 rejection counts by guideline, the fix for each common rejection from 2.1 to 5.1.1, reply templates, and when to reply, resubmit or appeal.

• Guide

  App Store In App Events: Limits and Sizes

  Apple's current In App Event limits, media sizes, character counts and the seven badges, with example metadata and the outdated numbers older guides still repeat.

• Guide

  How to Get Featured on the App Store

  Apple's seven featuring considerations, how to send a Featuring Nomination and when, every featured placement explained, and what changes once your app is picked.

• Benchmarks

  App Store Conversion Rate Benchmarks

  Conversion rate by category for the App Store and Google Play, how each console calculates it, and why the published averages disagree.

Social Media Posts and Brand

Image sizes for every network, what high performing posts have in common, and a brand style guide you can fill in an hour.

• Reference

  Social Media Image Sizes

  Every image and video size for eleven networks, in pixels, copied from each network's own pages, with a cheat sheet.

• Guide

  Social Media Post Design: 35 Creatives Analyzed

  What 35 high performing creatives share, checked against published research.

• Template

  Brand Style Guide Template

  A one page template for an app: icon, colors with contrast ratios, type, screenshots, voice and post rules.

• Reference

  LinkedIn Carousel Size

  Pixel sizes, PDF limits and ad specs for LinkedIn carousels, from LinkedIn's own help pages.

• Examples

  LinkedIn Carousel Examples

  Eighteen carousel structures with example slide text, including four for app updates, features and ratings.

• Prompt Library

  ChatGPT Prompts for Instagram Carousels

  Twenty five copy ready prompts for hooks, slide outlines, captions and app carousels, with the 2026 Instagram carousel rules.

• Prompt Library

  ChatGPT Prompts for a Content Calendar

  Twenty five copy ready prompts for brand voice, pillars, monthly and weekly plans, each network, a launch month and a calendar table for Sheets or Notion.

• Prompt Library

  Claude Prompts for Social Media

  Thirty copy ready Claude prompts for brand voice, post ideas, captions per network, carousels, hooks, replies, export analysis, a weekly review and an audit.

• Resource

  Claude Skills for Social Media

  Anthropic's Marketing plugin and ten community skill repos for social media, read file by file, with install steps for Claude, Claude Code and Cowork.

Social Media Statistics and Benchmarks

User counts, growth, engagement benchmarks and limits for the networks you post to, each number linked to where it was read.

• Statistics

  Bluesky Statistics 2026

  Registered users by month, daily active accounts, users by country, engagement and how Bluesky compares with Threads and Mastodon, every number sourced.

• Guide

  Social Media KPIs: 20 Metrics With Formulas

  Twenty social media KPIs grouped by goal, each with a formula and example, what every network really counts, a tracker template and a weekly, monthly and quarterly reporting rhythm.

• Reference

  Social Media Statistics 2026

  Users worldwide, time spent, user counts for 16 platforms, US survey data and social advertising numbers, each with its publisher, date and link.

• Reference

  Threads Statistics 2026

  Threads users over time from Meta's own earnings calls, daily vs monthly actives, outside estimates, users by country, Threads vs X, Instagram and Bluesky, and engagement data.

• Template

  Social Media Audit Template and Checklist

  A 10 step social media audit checklist, a template to copy into a sheet, a filled in example, where every network keeps its numbers and a visual consistency check.

• Reference

  Social Media Character Limits

  Character limits for posts, bios, alt text, titles and hashtags on 11 networks, from each network's own docs, with how links and emoji count.

Growth and Startup Marketing Numbers

Budgets, acquisition costs and the ratios investors ask about, for apps and small startups, each number linked to its source.

• Benchmarks

  LTV to CAC Ratio: Formula and Benchmarks

  The LTV CAC formula, what a good ratio is for SaaS, subscription apps and ecommerce, the 3:1 rule, payback period and how channels change blended CAC.

• Budget guide

  Startup Marketing Budget: How Much to Spend

  Line item marketing budgets for an app or SaaS startup at $0, $500, $2,000 and $10,000 a month, percent of revenue benchmarks and a template to copy.

• Benchmarks

  Cost per Install (CPI) Benchmarks

  What an app install costs on iOS and Android by country, region and category, from Adjust, AppsFlyer, Liftoff and SplitMetrics, plus the CPI formula and the LTV check.