ASO optimization, listing compliance, and publishing workflows for indie Android developers. From The IOn Project.
Publishing an app should be the easy part. But Google Play makes it complicated. Between ASO requirements, policy compliance, data safety sections, and screenshot optimization, indie developers end up spinning their wheels on stuff that feels technical but is mostly just busy work. These guides cut through the noise and focus on what actually matters for getting your app live and discoverable.
You'll find breakdowns of Google Play Console workflows that work for solo developers, ASO strategies that don't require hiring a growth expert, and real talk about why your app might get rejected. IOn Emit makes publishing faster by automating the repetitive parts. But you still need to understand the system, and these guides are built so you can, without needing five browser tabs and a marketing degree.
New to the vocabulary? The ASO glossary defines the terms these guides use, and IOn Emit compared with AppFollow, Sensor Tower and AppTweak covers the tooling.
Try IOn EmitAndroid App Links open in the browser when domain verification fails. Fix assetlinks.json: the right SHA-256 fingerprint, hosting rules, and adb tests.
Read more →Android app icons get cropped when artwork sits outside the 66 dp safe zone of a 108 dp adaptive icon layer. Layer sizes, XML, and how to preview masks.
Read more →Google Play rejects a version code that was already used. Each upload needs a new, higher integer up to 2,100,000,000. Causes, Gradle fixes, rollback.
Read more →The Google Play in-app review API shows a rating card inside your app, but a quota decides if it appears. How to time it, wire it up in Kotlin, and test it.
Read more →A Google Play staged rollout sends an update to a percentage of users you choose. Start at 5%, watch Android vitals, then raise it or halt. My ladder inside.
Read more →The Google Play content rating questionnaire is the IARC form under Policy, App content. Unrated apps can be removed. What it asks and when to redo it.
Read more →Google Play needs a 512 x 512 PNG icon, a 1024 x 500 feature graphic and 2 to 8 screenshots per device type. Every size, format and limit in one table.
Read more →Before publishing an Android app, check that it targets the API level Play accepts, ships as an App Bundle, and is signed with the right upload key.
Read more →A release build that works when sideloaded can fail from Google Play because of R8 shrinking, Play App Signing or untested devices. How to find which.
Read more →You built for Android. But the market opportunity on iOS might be better. Here's what changed and why cross-platform matters now.
Read more →Everything a solo developer needs to know about Google Play Console. Setup, listings, ASO, rejections, and the tools that make it manageable.
Read more →You don't need design software to make good screenshots. Here's how to create app store screenshots that actually convert.
Read more →Repetitive publishing steps waste time. Here's the workflow and automation that cuts publishing down to actually fast.
Read more →You've got a working app. This is the shortest path from code to the Play Store, without cutting corners on compliance.
Read more →ASO isn't just for marketing. It's how your app gets discovered. Here's what an ASO score means and how to actually improve it.
Read more →Every app needs a data safety section. It's required, but most developers get it wrong. This is how to do it right.
Read more →First 1,000 downloads are the hardest. Here's what you can actually do as an indie dev to get there without spending money.
Read more →Your description is the last thing between someone downloading your app or passing. Here's how to write one that works.
Read more →App Store Optimization is always changing. This is what matters for 2026 and why keywords alone aren't enough anymore.
Read more →Your app got rejected. Here's the five most common reasons and exactly how to fix them so it doesn't happen again.
Read more →The two ranking algorithms diverged years ago and the metadata fields don't match. A field-by-field comparison and which tactics travel across stores.
Read more →Keyword relevance, install velocity, retention, ratings, and technical quality — the ranking factors that actually move installs, broken down with weight estimates.
Read more →You don't need a $200/mo ASO tool. The free and low-cost methods that surface high-intent keywords your competitors haven't found.
Read more →The short description is the single highest-leverage ASO field on Google Play and most developers waste it. Here's what to write instead.
Read more →Your icon is the first impression and the highest-impact tap-through optimization. Design principles that hold up across categories and screen sizes.
Read more →How to run statistically valid listing experiments — without burning a quarter on inconclusive data or chasing noise that looks like signal.
Read more →A real, used-in-production checklist for the 30 days before submission. Compliance, ASO, metadata, screenshots, privacy. Don't skip steps.
Read more →Review prompt timing, response strategy, and how to recover ratings after a bad release. What works, what backfires, what Google penalizes.
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