| calculate_yoy_growth | Calculate year-over-year growth rates |
| clean_numeric_column | Clean numeric column by removing special characters |
| filter_helpers | Custom Filter Helper Functions |
| find_column | Column validation and mapping helpers |
| formatting_helpers | Formatting Helper Functions |
| format_arpu | Format ARPU (Average Revenue Per User) |
| format_currency | Format currency values with appropriate suffixes |
| format_downloads | Format download counts with appropriate suffixes |
| format_large_number | Format large numbers with K/M/B suffixes |
| format_market_share | Format market share as percentage |
| format_percent | Format percentages |
| format_retention | Format retention rates |
| format_users | Format user counts (DAU/MAU/WAU) |
| format_vector | Create a vector of formatted values |
| get_column_spec | Get column specification for common Sensor Tower metrics |
| lookup_category_names | Helper function to look up category names |
| map_region_columns | Map region-specific columns intelligently |
| require_column | Validate column exists with fallback options |
| select_columns_safe | Select columns safely with fallbacks |
| select_robust | Safe column selection with automatic fallbacks |
| st_analyze_filter | Analyze Custom Filter Performance |
| st_api_diagnostics | Diagnose API Issues |
| st_app_details | Fetch Detailed App Metadata |
| st_app_enriched | Fetch Enriched Metrics for Specific Apps |
| st_app_info | Fetch Unified App or Publisher Information from Sensor Tower |
| st_app_lookup | Look up app information by any ID type |
| st_app_tag | Fetch Apps by Custom Fields and Tags |
| st_batch_metrics | Batch Fetch Metrics for Multiple Apps |
| st_build_filter_url | Build Sensor Tower Filter URL |
| st_build_web_url | Create Sensor Tower Web URL from Parameters |
| st_cache_info | Show App ID Cache Statistics |
| st_categories | List Available Sensor Tower Categories |
| st_category_rankings | Fetch App Store Category Rankings |
| st_clear_app_cache | Clear App Name Cache |
| st_clear_id_cache | Clear App ID Cache |
| st_combine_filters | Combine Multiple Filters |
| st_compare_filter_results | Compare Results With and Without Custom Filter |
| st_create_simple_filter | Create or Get Filter ID for Custom Criteria |
| st_custom_fields | Custom Fields Filter Functions |
| st_custom_fields_filter | Create a Custom Fields Filter |
| st_custom_fields_filter_by_id | Get Custom Fields Filter Details by ID |
| st_custom_fields_utils | Custom Fields Utility Functions |
| st_custom_fields_values | Get Custom Fields Values |
| st_custom_fields_workflow | Custom Fields Filter Workflow Helper Functions |
| st_demographics | Fetch Demographics Data for Apps |
| st_discover_fields | Discover Available Custom Fields |
| st_extract_filter_id | Extract Filter ID from Sensor Tower URL |
| st_extract_url_params | Extract All Parameters from Sensor Tower URL |
| st_filter_by_date | Create Date-Based Filter |
| st_filter_by_genre | Create Genre-Based Filter |
| st_filter_by_monetization | Create Monetization-Based Filter |
| st_filter_by_publisher | Create Publisher-Based Filter |
| st_filter_by_sdk | Create SDK-Based Filter |
| st_game_summary | Fetch Game Market Summary Data |
| st_generate_example_filter_ids | Generate Example Filter IDs for Testing |
| st_get_app_names | Get App Names from Publisher Apps Result |
| st_get_filtered_apps | Get Top Apps with Custom Filter |
| st_get_filter_collection | Get Pre-Built Filter Collections |
| st_get_unified_mapping | Get Unified ID Mapping for Apps |
| st_gt_dashboard | Create FiveThirtyEight-styled GT Dashboard from Top Charts Data |
| st_is_valid_filter_id | Validate Custom Field Filter ID Format |
| st_metrics | Fetch Sensor Tower Metrics for Apps |
| st_parse_web_url | Parse Sensor Tower Web URL to API Parameters |
| st_publisher_apps | Get All Apps from a Publisher |
| st_publisher_portfolio | Publisher Portfolio Analysis |
| st_retention | Fetch Retention Data for Apps |
| st_sales_report | Fetch Sales Report Estimates |
| st_session_metrics | Fetch Session Metrics Time Series Data |
| st_smart_metrics | Smart Metrics Fetching with Automatic ID Resolution |
| st_test_filter | Test a Custom Filter ID |
| st_top_charts | Fetch Top Apps by Various Metrics |
| st_top_publishers | Get Top Publishers by Revenue or Downloads |
| st_unified_sales_report | Fetch Unified Sales Report Estimates (All Regional SKUs Aggregated) |
| st_yoy_metrics | Year-over-Year Metrics Comparison |
| try_column_operation | Handle column mapping errors gracefully |
| validate_columns | Validate required columns exist |
| validate_top_charts_data | Data validation functions for Sensor Tower API responses |