The App Store keyword field is small, private, and very easy to waste. For indie iOS apps, it is also one of the few places where careful ASO work can still create a real search advantage. What Apple actually indexes Apple keyword search primarily uses the app name, subtitle, keyword field, in-app purchase names, and developer name. The keyword field is not visible to users, but it gives Apple extra words to combine with your title and subtitle. The important thing to remember: the App Store description is not a keyword-ranking field. The description matters for conversion after someone opens the product page, but adding keywords there does not make Apple rank you for those terms. Quick map: App name: 30 characters, highest search weight. Subtitle: 30 characters, high search weight and visible in search results. Keyword field: 100 characters, private, comma-separated. Description: conversion copy, not keyword ranking text.…