PluginBench
Skill
Pass
Audit score 90

market-movers

eronred/aso-skills

Track App Store chart rank changes, identify top gainers and losers, and spot breakout apps entering the top 100.

What is market-movers?

Market Movers analyzes rank changes between App Store chart snapshots to identify significant movements and their drivers. Use it when tracking chart dynamics, finding rising or falling apps, detecting new chart entries, or understanding market shifts in your category.

  • Identify top gainers and losers with rank change metrics
  • Detect apps newly entering the top 100 and those dropping out
  • Analyze likely drivers of rank movements (updates, featuring, campaigns, seasonality)
  • Assess sustainability of gains and competitive threats
  • Provide category-specific volatility and entry barrier analysis
  • Generate actionable recommendations based on market movements

How to install market-movers

npx skills add https://github.com/eronred/aso-skills --skill market-movers
Prerequisites
  • Access to app-marketing-context.md (optional, for user app context)
  • Ability to specify chart type (top-free, top-paid, top-grossing)
  • Category and country selection for analysis
Claude Code
Cursor
Windsurf
Cline

How to use market-movers

  1. 1.Specify the chart type you want to analyze (top-free, top-paid, or top-grossing)
  2. 2.Indicate the category (all charts or specific genre like Games or Productivity)
  3. 3.Select the country (defaults to US)
  4. 4.Choose your analysis focus: full overview, gainers only, losers only, or new entries
  5. 5.Review the summary with rank changes, drivers, and actionable insights

Use cases

Good for
  • Monitor competitor rank changes to identify threats or opportunities
  • Track your app's performance against market movers in your category
  • Analyze what strategies successful gainers used to replicate their success
  • Detect new market entrants competing in your space
  • Time app updates or campaigns based on category momentum trends
Who it's for
  • App Store Optimization (ASO) specialists
  • Product managers tracking competitive landscape
  • Marketing teams planning launch or campaign timing
  • Growth strategists analyzing market dynamics
  • App developers monitoring category trends

market-movers FAQ

What's the difference between market-movers and market-pulse?

Market Movers focuses on rank changes and chart dynamics between snapshots. Market Pulse provides a broader market overview combining movers with trends and App Store featuring data.

How do I know if a rank gain is sustainable or just a spike?

The skill analyzes likely drivers (viral moment, feature update, Apple featuring, ad campaign, seasonality) to assess sustainability. Gainers driven by Apple featuring or campaigns may be temporary, while those from product improvements tend to be more durable.

Can I use this to analyze my own app's rank changes?

Yes. If you provide app-marketing-context.md with your app details, the skill will include your app in the analysis and highlight how your performance compares to market movers in your category.

What data sources does this use?

The skill uses MCP tools including get_market_movers (gainers, losers, new entries), get_market_activity (chronological feed), get_category_top (current standings), and get_app (deep dives on specific apps).

How often should I run this analysis?

Frequency depends on your needs: daily for highly competitive categories, weekly for moderate competition, or as-needed when planning campaigns or updates. The skill compares snapshots, so you need data from at least two time periods.

Full instructions (SKILL.md)

Source of truth, from eronred/aso-skills.


name: market-movers description: When the user wants to track App Store chart rank changes, find top gainers and losers, detect breakout apps entering the top 100, or identify apps dropping out of charts. Also use when the user mentions "chart movers", "rank changes", "who's rising", "who's falling", "new chart entries", "top gainers", or "market shifts". For broader market overview, see market-pulse. For competitive keyword analysis, see competitor-analysis. metadata: version: 1.0.0

Market Movers Analysis

You are an expert in App Store chart dynamics. Your goal is to analyze rank changes between chart snapshots, identify significant movements, and provide actionable insights about what's driving gains and losses.

Initial Assessment

  1. Check for app-marketing-context.md — read it for the user's app and category
  2. Ask for chart type: top-free (default), top-paid, or top-grossing
  3. Ask for category: all charts or specific genre (e.g. Games, Productivity)
  4. Ask for country (default: US)
  5. Ask what they want: full overview, gainers only, losers only, or new entries

Data Collection

Use these MCP tools to gather chart movement data:

  1. get_market_movers — Top gainers, losers, new entries, dropped out
  2. get_market_activity — Chronological feed of all significant movements
  3. get_category_top — Current chart standings for context
  4. get_app — Deep dive on specific apps showing movement

Analysis Framework

1. Chart Movement Summary

MetricValue
Period compared[date] vs [date]
Chart / Countrytop-free / US
Total significant moves
New entries
Dropped out
Biggest gainer+X positions
Biggest loser-X positions

2. Top Gainers Analysis

For each top gainer:

AppRank ChangeCurrentPreviousCategoryRating

For each notable gainer, analyze:

  • What likely drove the surge? (viral moment, feature update, Apple featuring, ad campaign, seasonal)
  • Is the gain sustainable or a spike?
  • What can the user learn from this app's strategy?

3. Top Losers Analysis

For each top loser:

AppRank ChangeCurrentPreviousCategoryRating

For each notable loser, analyze:

  • What might have caused the decline? (competitor launch, bad update, seasonal drop, removed from featuring)
  • Is the drop a concern for the user's category?
  • Does this create an opportunity?

4. New Chart Entries

Apps that appeared in the top 100 for the first time:

AppEntered AtCategoryRatingReviews

Analyze:

  • Is this a new launch or a resurgent app?
  • Does it compete in the user's category?
  • What launch strategy did they likely use?

5. Dropped Out

Apps that fell out of the top 100:

AppPrevious RankCategoryRating

6. Category-Specific Patterns

If analyzing a specific genre:

  • Overall volatility: How many positions shifted on average?
  • Top 10 stability: Are the top spots locked or fluid?
  • Entry barrier: What rank did new entries typically land at?

Actionable Insights

For the User's App

Based on the market movements:

  1. Immediate opportunity — Is a competitor dropping that you can capitalize on?
  2. Threat assessment — Is a new entrant competing for your audience?
  3. Timing insight — Is the category trending up or down overall?
  4. Strategy takeaway — What are gainers doing that you could replicate?

Recommendations Table

PriorityActionWhyExpected Impact
1
2
3

Output Format

Quick Summary (default)

3-5 bullet points with the most important movements and what they mean.

Detailed Report (if requested)

Full analysis with all sections above, formatted for sharing with a team.

Alert Format (for monitoring)

🟢 GAINERS: [App A] +45, [App B] +23, [App C] +18
🔴 LOSERS: [App D] -32, [App E] -19
🆕 NEW: [App F] entered at #7, [App G] at #34
⬇️ OUT: [App H] dropped from #89

Related Skills

  • market-pulse — Broader market overview combining movers with trends and featuring
  • competitor-analysis — Deep dive into specific competitors identified from movers
  • app-launch — Use market timing insights for launch planning
  • ua-campaign — Adjust ad spend based on chart dynamics
  • app-store-featured — Check if featuring is driving observed movements

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