--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "BatteryPhone" developer_entity: "Keietsu Yasuhara" bundle_id: "com.kyasusoft.batteryphone" app_store_id: "1191334332" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-02-01" report_date: "2026-08-15" last_verified: "2026-08-15T00:00:00.000Z" report_version: "5.6" total_reviews: 156 overall_rating: 3.6 sentiment: "Frustrated" sentiment_score: 35 confidence: "medium" confidence_score: 0.6 top_praise_theme: "The simple interface and lack of aggressive subscription prompts provide a clean user experience" top_complaint_theme: "The latest update introduced severe stability issues including app crashes and blank watch interfaces" review_sample_size: 49 total_review_count: 49 analyzed_review_count: 49 data_age_days: 12 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["utilities", "free", "frustrated sentiment", "mobile app", "app review", "app analysis", "apple", "watch", "users"] canonical_url: "https://marlvel.ai/apps/batteryphone" license: "CC-BY-NC 4.0" content_version: "v2" --- # BatteryPhone Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 3.63 · Sentiment Frustrated - **Recent focus**: The latest update introduced severe stability issues including app crashes and blank watch interfaces (top complaint) · The simple interface and lack of aggressive subscription prompts provide a clean user experience (top praise) > **TL;DR:** BatteryPhone is a utilities app by Keietsu Yasuhara, rated 3.63/5 by 156 users, with Frustrated user sentiment (35/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** BatteryPhone faces Frustrated user sentiment (3.63/5 from 156 reviews), with users reporting the latest update introduced severe stability issues including app crashes and blank watch interfaces as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.63/5 (156 reviews) | | **User Mood** | Frustrated | | **Category** | Utilities | | **Developer** | Keietsu Yasuhara | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Medium (0.6/1.0) | | **Data Age** | 12d | ## Metadata & Market Performance - **Publisher:** Keietsu Yasuhara - **Category:** Utilities - **Target Audience:** Apple Watch users who require proactive monitoring of their paired iPhone and Watch battery levels. - **Platforms:** iOS - **Version Reviewed:** 5.6 - **Report Date:** 2026-08-15 - **Signal Count:** 49 reviews analyzed - **Confidence:** Medium (0.6/1.0) - **App Store ID (iOS):** 1191334332 - **Bundle ID:** com.kyasusoft.batteryphone - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-15 ## Executive Snapshot **What it is:** BatteryPhone is a free utility for iOS and watchOS that displays iPhone and Apple Watch battery levels on watch face complications. **Why users hire it:** The app removes the need to open the phone or watch settings to check power levels, though recent synchronization failures now require manual intervention. ## App DNA (Features & Intent) - **[Differentiator] Cross-Device Battery Monitoring:** Displays battery levels for both iPhone and Apple Watch on the watch face via complications. * *User Intent:* Users expect seamless access across multiple devices. - **[Differentiator] Battery Level Graphing:** Visualizes charge level changes over approximately one day within the app. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Customizable Notifications:** Alerts user when battery drops below a specified percentage or reaches full charge. * *User Intent:* Users value self-expression and personalized experiences. ## Market Position {#market-position} BatteryPhone occupies a niche as a free, ad-free utility in the Utilities category. The lack of recent feature expansion compared to the six-month update cadence signals a maintenance-only posture that risks losing ground to more active competitors. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** BatteryPhone is distributed as a free utility with no visible subscription or IAP gates, providing a low-friction experience. ## 🔴 User Sentiment (Medium Confidence: 49 of 49 reviews analyzed) {#user-sentiment} - **Overall Rating:** 3.63/5 - **Platform Split:** iOS 3.6/5 (156 ratings) - **Overall Sentiment:** Frustrated ### Top Praises - **The simple interface and lack of aggressive subscription prompts provide a clean user experience** - **Watch complications offer a convenient way to monitor device power levels without opening the app** ### Top Complaints (Impact Areas) - **The latest update introduced severe stability issues including app crashes and blank watch interfaces** ## SWOT Analysis {#swot} **Core Strengths:** - Complication-based monitoring enables glanceable power status. - Ad-free, subscription-free model provides low-friction experience. **Growth Levers:** - Siri Shortcuts integration would address top user requests. - Customizable sync intervals would improve battery-drain control. ## Recent Changes (v2 → v3) {#recent-changes} BatteryPhone has entered a more transparent maintenance phase, with the developer formally committing to Siri Shortcuts integration while clarifying the technical constraints behind persistent synchronization failures. **Overall trend**: Stable **Compared at**: 2026-08-15 ### High-impact changes - **[Added] Siri Shortcuts Roadmap** (features) ### Medium-impact changes - **[Shifted] SWOT Restructuring** (swot) - **[Shifted] Technical Clarification** (sentiment) ## What's New - **Latest (v5.6, 6 months ago):** Added a battery level visualization graph for iPhone and Watch, plus configurable auto-update intervals. ## App Momentum (Maintenance) {#momentum} - Shipped battery graphing in latest release. - Ships ~2 releases per year. > **Cadence:** 1 total versions · 1 majors in last 6 months · 194 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} BatteryPhone is an utilities app that is completely free. With a 3.63/5 rating from 156 reviews, it faces significant user friction. > **Bottom Line:** BatteryPhone's value rests on its simple, ad-free complication, but the recent stability regressions threaten its core utility. Addressing the synchronization failures is the only way to retain the user base against more reliable alternatives. **Best for:** Apple Watch users who require proactive monitoring of their paired iPhone and Watch battery levels. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Audit background synchronization logic because users report frequent data-refresh failures → restore reliability ### Outlook: Declining The utility market for device monitoring is consolidating around apps with high-frequency update cadences that ensure compatibility with watchOS background processes. BatteryPhone's maintenance-only posture leaves it exposed to synchronization failures, which will continue to drive churn until the core data-refresh mechanism is stabilized. - 🔴 Stability regressions in the latest release (crashes, blank screens) erode the daily active habit, compounding the rating drag already visible on the store. - 🔴 The six-month update cadence indicates a maintenance-only posture, leaving the app unable to respond to platform-level changes in watchOS synchronization. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.63/5 | | Total Reviews | 156 | | Sentiment | Frustrated (35/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **BatteryPhone** (this app) | 3.63/5 | Frustrated | Keietsu Yasuhara | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.9/5 | N/A | Cat Connect | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Free VPN by Free VPN .org™](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) | 4.5/5 | Mixed | Free VPN LLC | | [Fusvob VPN : Super VPN 2026](https://marlvel.ai/apps/com-toplinkc-foxexcellent) | 4.4/5 | Mixed | Fuxin Technology | | [Potatso](https://marlvel.ai/apps/potatso) | 4.4/5 | n/a | Potatso Lab LTD | ## Company Profile - **Developer:** Keietsu Yasuhara - **Website:** [https://www.kyasusoft.com/](https://www.kyasusoft.com/) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/batteryphone/id1191334332?uo=4) - **Dev Site:** [Official Website](https://www.kyasusoft.com/) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.9/5 Rating - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*Free VPN by Free VPN .org™*](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) (Free VPN LLC) · 4.5/5 Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.4/5 Rating - [*Potatso*](https://marlvel.ai/apps/potatso) (Potatso Lab LTD) · 4.4/5 Rating - [*Quantumult X*](https://marlvel.ai/apps/quantumult-x) (Cross Utility Ltd) · 3.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.5/5 Rating - [*카톡 분석 - 오픈채팅, 카톡 채팅 분석, 통계, 검색*](https://marlvel.ai/apps/com-liger-katalkanalysispaid) (Park Sung Cheol) · N/A Rating - [*로또 황금번호 생성기*](https://marlvel.ai/apps/lotto-lottogold) (jaehwan lee) · N/A Rating - [*도사폰 (만세력 역학도구)*](https://marlvel.ai/apps/app--656) (Softchaser Company Limited) · 5.0/5 Rating ## Frequently Asked Questions {#faq} ### Is BatteryPhone free to use? Yes, BatteryPhone is currently distributed as a free utility with no subscription or in-app purchase gates. ### Why does the battery status on my watch face not update automatically? The app relies on watchOS background processes, which may stop if the update interval exceeds 1.5 hours. Tapping the complication manually restarts the sync process. ### Does BatteryPhone support Siri voice commands? No, BatteryPhone does not currently support Siri Shortcuts, though this is a frequently requested feature by users. ## 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 into synthesised themes (no verbatim quotes). 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:** 0.6/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 49 - **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:** 12 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/batteryphone) Data licensed for AI Agent attribution under CC-BY-NC 4.0.