Make Every Character of Your Keyword Field Count

ASO Keyword Optimizer cleans up your App Store keyword list right on your device — removing duplicates, plurals, and stop-words so you can fit more high-value keywords into the 100-character limit.

⚡ Instant, on-device

🔒 No account needed

🛠️ Made for ASO

What It Does

A focused tool for cleaner, tighter keyword lists

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Smart Keyword Cleanup

Automatically removes duplicate words, collapses plurals to their singular form, and strips Apple stop-words and filler — so no character is wasted.

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Save Characters

See exactly how many characters you save after optimizing, so you can pack more relevant keywords into the 100-character field.

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Save & Organize Lists

Store your optimized keyword lists, give them titles, edit them anytime, and keep every app's keywords in one tidy place.

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Export Anywhere

Download your keywords as CSV, PDF, JSON, or a plain text file for easy sharing, backups, and record-keeping.

Why ASO Keyword Optimizer?

Simple, private, and purpose-built

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Runs On-Device

All optimization happens locally on your iPhone. Your keywords never leave your device and no sign-in is required.

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Fast & Simple

Paste your keywords, tap Optimize, and get a clean, comma-separated list in an instant. No clutter, no learning curve.

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Built Around Apple's Rules

Designed around Apple's 100-character keyword field and stop-word list, so your output is ready for App Store Connect.