--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Tides and Currents-USA" developer_entity: "雪平 王" bundle_id: "com.xueping.tidesandcurrents" app_store_id: "6464309360" category: "Weather" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-09-21" report_date: "2026-05-16" last_verified: "2026-05-16T07:50:38.631Z" report_version: "2.6" total_reviews: 20 overall_rating: 3.95 sentiment: "Upset" sentiment_score: 10 confidence: "low" confidence_score: 0.45 top_complaint_theme: "Inability to select specific tide or current stations prevents users from accessing core location data" review_sample_size: 20 total_review_count: 3 analyzed_review_count: 3 data_age_days: 46 momentum_velocity: "maintenance" intelligence_version: 3 nemesis: "Tides Near Me" competitor_count: 7 tags: ["weather", "freemium", "upset sentiment", "mobile app", "app review", "app analysis", "maritime", "enthusiasts,", "anglers,"] canonical_url: "https://marlvel.ai/intel-report/weather/tides-and-currents-usa" license: "CC-BY-NC 4.0" content_version: "v2" --- # Tides and Currents-USA App Audit ## TL;DR {#tldr} - **Category**: Weather · Freemium - **Signal**: Rating 3.95 · Sentiment Upset - **Recent focus**: Inability to select specific tide or current stations prevents users from accessing core location data (top complaint) > **TL;DR:** Tides and Currents-USA is a weather app by 雪平 王, rated 3.95/5 by 20 users, with Upset user sentiment (10/100), available on iOS. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Tides and Currents-USA faces Upset user sentiment (3.95/5 from 20 reviews), with inability to select specific tide or current stations prevents users from accessing core location data as the primary user concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.95/5 (20 reviews) | | **User Mood** | Upset | | **Category** | Weather | | **Developer** | 雪平 王 | | **Pricing** | Freemium | | **Platforms** | iOS | | **Confidence** | Low (0.45/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** 雪平 王 - **Category:** Weather - **Target Audience:** Maritime enthusiasts, anglers, and coastal residents requiring offline access to NOAA-based tide and current predictions. - **Platforms:** iOS - **Version Audited:** 2.6 - **Audit Date:** 2026-05-16 - **Signal Count:** 3 reviews analyzed - **Confidence:** Low (0.45/1.0) - **App Store ID (iOS):** 6464309360 - **Bundle ID:** com.xueping.tidesandcurrents - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-05-16 ## Executive Snapshot **What it is:** Tides and Currents-USA is a maritime utility app for iOS that provides offline tide and current predictions using NOAA harmonic constituents. **Why users hire it:** Users hire this app for reliable maritime planning in remote areas without cellular coverage, where standard weather apps fail to load data. ## App DNA (Features & Intent) - **[Differentiator] Local Harmonic Analysis:** Calculates tide and current predictions locally on the device using NOAA harmonic constituents without requiring network access. - **[Differentiator] Pro Calendar and Month Table:** Allows users to select specific dates via calendar and view monthly tide/current tables. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Map Forecast:** Visualizes tide data on a map interface with a 7-day forecast window. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with limited date access, Pro tier with unlimited date access, calendar selection, month tables, widgets, and 7-day map forecasts - **Analysis:** Freemium model gates advanced planning tools and extended forecast windows behind a subscription to monetize power users. ## 🔴 User Sentiment (Low Confidence: 3 of 3 reviews analyzed) {#user-sentiment} - **Overall Rating:** 3.95/5 - **Platform Split:** iOS 4.0/5 (20 ratings) - **Overall Sentiment:** Upset ### Top Complaints (Impact Areas) - **Inability to select specific tide or current stations prevents users from accessing core location data** - **Persistent UI navigation failures prevent users from interacting with the map interface as intended** ## SWOT Analysis {#swot} **Core Strengths:** - Local harmonic analysis provides utility in remote areas without cellular coverage **Critical Frictions:** - Navigation failures prevent core utility - 3.95 rating on only 20 reviews indicates low user trust **Growth Levers:** - Integrate wearable support to differentiate from general-purpose weather apps **Market Threats:** - Tides Near Me maintains 13 updates in six months, widening the feature-parity gap ## Recent Changes (v2 → v3) {#recent-changes} The app introduced a freemium pricing model but experienced a decline in usability due to critical map-input failures that block core functionality. **Overall trend**: Declining **Compared at**: 2026-05-16 ### High-impact changes - **[Shifted] Freemium Model Adoption** (pricing) — Pricing model shifted from free to freemium, gating calendar selection, month tables, and 7-day map forecasts behind a subscription tier. - **[Declined] Critical Navigation Bugs** (sentiment) — New complaints emerged regarding map marker touch-input failures, preventing users from selecting tide or current stations. ### Medium-impact changes - **[Improved] Local Harmonic Analysis Positioning** (features) — Local Harmonic Analysis was repositioned from a standard feature to a primary differentiator to highlight the offline-first capability. - **[Shifted] Target Audience Expansion** (audience) — Target audience expanded from maritime enthusiasts to include anglers and coastal residents. ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Tides and Currents-USA vs Tides Near Me — Head to Head - **[Tides Near Me](https://marlvel.ai/intel-report/weather/me-tidesnear-free)** by Shelter Island Mapping Company, LLC: Dominates the specific tide and current niche with massive user scale and a high-frequency update cadence that keeps the product relevant. - **Moat strength:** High — sustainable advantage over 12 months - **Key differences:** - Maintains a massive, highly active user base that creates a significant barrier to entry for new niche players. - High-frequency release cycle of 13 updates in six months ensures rapid adaptation to user feedback and platform changes. - Specialized focus on tide and current mapping provides a cleaner, more dedicated UX than general-purpose weather apps. - **Where Tides and Currents-USA wins:** - ✅ Offers a completely offline-first experience by utilizing local harmonic calculations without requiring any network connectivity. - ✅ Provides a more granular breakdown of harmonic versus subordinate stations for advanced maritime navigation needs. - **Where Tides Near Me wins:** - ❌ Leverages a massive, long-standing community to refine UI/UX patterns that feel more intuitive for casual users. - ❌ Maintains a superior release velocity that allows for faster integration of new OS-level features and performance optimizations. - **Verdict:** The target app must lean into its offline-first technical advantage to serve remote maritime users while improving its UI polish to compete with the nemesis's established user experience. ### Contenders (Strong Challengers) - **[PredictWind — Marine Forecasts](https://marlvel.ai/intel-report/weather/com-predictwind-app)** by PredictWind Limited [Moat: Medium]: A specialized marine-focused competitor that offers advanced weather modeling beyond simple tide data. - Integrates proprietary weather routing and wind modeling specifically designed for professional and competitive sailors. - Provides advanced marine-specific forecast data that goes significantly deeper than standard NOAA harmonic tide predictions. - **[BoatUS - Boat Weather & Tides](https://marlvel.ai/intel-report/weather/com-boatus-boatus)** by BoatUS [Moat: Medium]: Leverages a strong brand association with the boating community to provide a trusted, all-in-one marine utility. - Bundles tide and weather data with essential boating services like towing and insurance information. - Positions itself as a comprehensive safety and utility hub rather than just a standalone tide calculator. ### Peers (What They Do Better) - **[Windy.com](https://marlvel.ai/intel-report/weather/com-windytv-ios)** by Windyty, SE: A massive general-purpose weather platform that dominates the visual weather mapping space. - Utilizes industry-leading visual data overlays that provide a superior interactive experience for complex weather patterns. - Offers a vast array of global weather models that far exceed the scope of localized tide station data. - **[Windfinder: Wind & Weather map](https://marlvel.ai/intel-report/weather/net-windfinder-windfinderapp)** by Windfinder: A highly specialized tool for wind-dependent sports that overlaps with the target's maritime audience. - Optimized specifically for wind-sports enthusiasts with highly granular wind speed and direction visualizations. - Provides a streamlined interface that prioritizes quick, actionable wind data over complex harmonic calculations. - **[MyRadar Accurate Weather Radar](https://marlvel.ai/intel-report/weather/com-fboweb-myradar)** by Aviation Data Systems, Inc: A broad-market weather app that competes for the same screen time by providing high-fidelity radar imagery. - Features a highly responsive, high-definition radar map that is the industry standard for general weather tracking. - Aggregates diverse weather data sources into a single, cohesive, and highly performant mobile interface. ### New Kids on the Block (What's Innovative) - **[Moon Calendar — MoonX](https://marlvel.ai/intel-report/weather/by-olion-moon)** by Vibes LLC: Shows aggressive growth and high update frequency, signaling a strong push into the lunar/tide-adjacent utility space. ## App Momentum (Maintenance) {#momentum} Last updated 218d ago. 5 versions tracked. > **Cadence:** 5 total versions · 0 majors in last 6 months · 218 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Tides and Currents-USA is a challenged weather app that is free with in-app purchases. With a 3.95/5 rating from 20 reviews, it faces significant user friction. > **Bottom Line:** The app provides a valuable offline-first utility, but navigation failures currently render it unusable, so the PM must prioritize a UI audit to restore basic functionality before attempting further feature expansion. **Best for:** Maritime enthusiasts, anglers, and coastal residents requiring offline access to NOAA-based tide and current predictions. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] [HIGH IMPACT] Rebuild map marker touch-registration logic because users cannot select stations → restore core utility — *Top complaint theme identifies map-input failure as the primary blocker for navigation.* _(trade-off: deprioritize Pause the 7-day map forecast update — core navigation is a higher priority for retention.)_ ### Feature Gaps vs Competitors - High-frequency release cycle (available in Tides Near Me but absent here) - Advanced weather modeling (available in PredictWind but absent here) ### Outlook: Declining The maritime utility market is consolidating around apps that combine high-fidelity weather data with reliable UI patterns. Tides and Currents-USA is currently exposed due to critical navigation bugs, so the PM must stabilize the core interface to prevent users from migrating to more responsive competitors. - 🔴 Persistent map-input failures in the latest version prevent core station selection, driving high churn risk among maritime users. - 🔴 The lack of meaningful feature updates over the last quarter leaves the app vulnerable to competitors with higher release cadences. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.95/5 | | Total Reviews | 20 | | Sentiment | Upset (10/100) | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Tides and Currents-USA** (this app) | 3.95/5 | Upset | 雪平 王 | | [Windfinder: Wind & Weather map](https://marlvel.ai/intel-report/weather/net-windfinder-windfinderapp) | 4.8/5 | N/A | Windfinder | | [Tides Near Me](https://marlvel.ai/intel-report/weather/me-tidesnear-free) | 4.8/5 | N/A | Shelter Island Mapping Company, LLC | | [Moon Calendar — MoonX](https://marlvel.ai/intel-report/weather/by-olion-moon) | 4.8/5 | N/A | Vibes LLC | | [MyRadar Accurate Weather Radar](https://marlvel.ai/intel-report/weather/com-fboweb-myradar) | 4.8/5 | Excited | Aviation Data Systems, Inc | | [Windy.com](https://marlvel.ai/intel-report/weather/com-windytv-ios) | 4.8/5 | Thrilled | Windyty, SE | ## Company Profile - **Developer:** 雪平 王 - **Website:** [https://www.astronomyobserver.net](https://www.astronomyobserver.net) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/tides-and-currents-usa/id6464309360?uo=4) - **Dev Site:** [Official Website](https://www.astronomyobserver.net) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*Windfinder: Wind & Weather map*](https://marlvel.ai/intel-report/weather/net-windfinder-windfinderapp) (Windfinder) — 4.8/5 Rating | N/A Sentiment - [*Tides Near Me*](https://marlvel.ai/intel-report/weather/me-tidesnear-free) (Shelter Island Mapping Company, LLC) — 4.8/5 Rating | N/A Sentiment - [*Moon Calendar — MoonX*](https://marlvel.ai/intel-report/weather/by-olion-moon) (Vibes LLC) — 4.8/5 Rating | N/A Sentiment - [*MyRadar Accurate Weather Radar*](https://marlvel.ai/intel-report/weather/com-fboweb-myradar) (Aviation Data Systems, Inc) — 4.8/5 Rating | Positive Sentiment - [*Windy.com*](https://marlvel.ai/intel-report/weather/com-windytv-ios) (Windyty, SE) — 4.8/5 Rating | Excellent Sentiment - [*BoatUS - Boat Weather & Tides*](https://marlvel.ai/intel-report/weather/com-boatus-boatus) (BoatUS) — 4.8/5 Rating | N/A Sentiment - [*PredictWind — Marine Forecasts*](https://marlvel.ai/intel-report/weather/com-predictwind-app) (PredictWind Limited) — 4.8/5 Rating | N/A Sentiment - [*KBZK Montana Weather*](https://marlvel.ai/intel-report/weather/kbzk-montana-weather) (E.W. Scripps Company) — 4.1/5 Rating | N/A Sentiment - [*Nautide: Tides, Wind, Waves +*](https://marlvel.ai/intel-report/weather/com-nautide-app) (Igoox) — 4.6/5 Rating | Positive Sentiment - [*14 days Weather*](https://marlvel.ai/intel-report/weather/14-days-weather) (Tasmanic Editions) — 4.5/5 Rating | N/A Sentiment ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** — Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** — Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** — Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction and evidence quoting. 4. **Competitive Landscape Analysis** — Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** — Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.45/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 3 - **Data Sources:** user reviews, developer website, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/weather/tides-and-currents-usa) Data licensed for AI Agent attribution under CC-BY-NC 4.0.