Keyword Field Optimizer

First, cosmetic spaces: “fitness, workout, gym” carries the same index value as “fitness,workout,gym” but spends one extra character per comma — a typical 15-term list bleeds 14 characters this way. Second, in-field duplicates: lists assembled over months of edits almost always contain a word twice, sometimes disguised in a phrase (“photo editor” and “editor”). Third, cross-field duplicates: Apple indexes your name and subtitle already, so repeating “budget” from your title inside the keyword field adds literally nothing.

None of these mistakes is visible in App Store Connect, which shows the field as a single unstructured string with no validation beyond the 100-character cap. That is why keyword fields degrade silently over time — each quick edit adds a little redundancy, and no store surface ever flags it.

A cleanup typically recovers 10–25 characters — enough for two to four single-word keywords. Choose them for coverage, not repetition: since Apple combines individual words across fields into phrases, the best additions are words that create new combinations with terms you already rank for. If “budget” and “planner” are in your metadata, adding “expense” unlocks “expense planner” and “expense budget” at once.

Re-run the optimizer whenever metadata changes anywhere, not just in the keyword field itself. Renaming your app or rewriting the subtitle silently changes which keyword-field terms became redundant — the word your new subtitle absorbed should be evicted from the field and replaced the same day.