App Store Optimization toolkit for researching keywords, optimizing metadata, and tracking mobile app performance on Apple App Store and Google Play Store.
ASO
app store optimization
app store ranking
app keywords
app metadata
play store optimization
app store listing
improve app rankings
app visibility
app store SEO
mobile app marketing
app conversion rate
App Store Optimization (ASO)
ASO tools for researching keywords, optimizing metadata, analyzing competitors, and improving app store visibility on Apple App Store and Google Play Store.
Write subtitle (iOS) or short description (Android):
Focus on primary benefit
Include secondary keyword
Use action verbs
Optimize keyword field (iOS only):
Remove duplicates from title
Remove plurals (Apple indexes both forms)
No spaces after commas
Prioritize by score
Rewrite full description:
Hook paragraph with value proposition
Feature bullets with keywords
Social proof section
Call to action
Validate character counts for each field
Calculate keyword density (target 2-3% primary)
Validation: All fields within character limits; primary keyword in title; no keyword stuffing (>5%); natural language preserved
Platform Character Limits
Field
Apple App Store
Google Play Store
Title
30 characters
50 characters
Subtitle
30 characters
N/A
Short Description
N/A
80 characters
Keywords
100 characters
N/A
Promotional Text
170 characters
N/A
Full Description
4,000 characters
4,000 characters
What's New
4,000 characters
500 characters
Description Structure
PARAGRAPH 1: Hook (50-100 words)
├── Address user pain point
├── State main value proposition
└── Include primary keyword
PARAGRAPH 2-3: Features (100-150 words)
├── Top 5 features with benefits
├── Bullet points for scanability
└── Secondary keywords naturally integrated
PARAGRAPH 4: Social Proof (50-75 words)
├── Download count or rating
├── Press mentions or awards
└── Summary of user testimonials
PARAGRAPH 5: Call to Action (25-50 words)
├── Clear next step
└── Reassurance (free trial, no signup)
TEST ID: ASO-2025-001
ELEMENT: App Icon
HYPOTHESIS: A bolder color icon will increase conversion by 10%
START DATE: [Date]
END DATE: [Date]
RESULTS:
├── Control CVR: 4.2%
├── Treatment CVR: 4.8%
├── Lift: +14.3%
├── Significance: 97%
└── Decision: Implement treatment
LEARNINGS:
- Bold colors outperform muted tones in this category
- Apply to screenshot backgrounds for next test
Before/After Examples
Title Optimization
Productivity App:
Version
Title
Analysis
Before
"MyTasks"
No keywords, brand only (8 chars)
After
"MyTasks - Todo List & Planner"
Primary + secondary keywords (29 chars)
Fitness App:
Version
Title
Analysis
Before
"FitTrack Pro"
Generic modifier (12 chars)
After
"FitTrack: Workout Log & Gym"
Category keywords (27 chars)
Subtitle Optimization (iOS)
Version
Subtitle
Analysis
Before
"Get Things Done"
Vague, no keywords
After
"Daily Task Manager & Planner"
Two keywords, benefit clear
Keyword Field Optimization (iOS)
Before (Inefficient - 89 chars, 8 keywords):
task manager, todo list, productivity app, daily planner, reminder app
MyTasks is a comprehensive task management solution designed
to help busy professionals organize their daily activities
and boost productivity.
After:
Forget missed deadlines. MyTasks keeps every task, reminder,
and project in one place—so you focus on doing, not remembering.
Trusted by 500,000+ professionals.
Improvements:
Leads with user pain point
Specific benefit (not generic "boost productivity")
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