--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Keyboard Math: Symbols & Units" developer_entity: "鸿宇 何" bundle_id: "com.keyboard.style.math.diy" app_store_id: "6785152616" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-07-10" report_date: "2026-09-25" last_verified: "2026-09-25T00:00:00.000Z" report_version: "1.1" total_reviews: 0 confidence: "low" confidence_score: 0.3 data_age_days: 6 momentum_velocity: "maintenance" intelligence_version: 2 tags: ["utilities", "free", "mobile app", "app review", "app analysis", "students,", "engineers,", "teachers"] canonical_url: "https://marlvel.ai/apps/keyboard-math-symbols-units" license: "CC-BY-NC 4.0" content_version: "v2" --- # Keyboard Math: Symbols & Units Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free > **TL;DR:** Keyboard Math: Symbols & Units is a utilities app by 鸿宇 何, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Keyboard Math: Symbols & Units is a utilities app by 鸿宇 何. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Utilities | | **Developer** | 鸿宇 何 | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 6d | ## Metadata & Market Performance - **Publisher:** 鸿宇 何 - **Category:** Utilities - **Target Audience:** STEM students, engineers, and teachers who require frequent access to mathematical symbols and unit conversions. - **Platforms:** iOS - **Version Reviewed:** 1.1 - **Report Date:** 2026-09-25 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6785152616 - **Bundle ID:** com.keyboard.style.math.diy - **Data Window:** Analysis based on signals collected up to 2026-09-25 ## Executive Snapshot **What it is:** Keyboard Math: Symbols & Units is a custom keyboard extension for iOS that provides direct access to STEM symbols, calculus operators, and unit conversions. **Why users hire it:** The app removes the need to hunt for special characters in system menus, allowing users to maintain flow while typing technical equations in any text-entry field. ## App DNA (Features & Intent) - **[Differentiator] STEM Symbol Keyboard:** Custom keyboard extension providing direct access to Greek letters, calculus operators, and LaTeX-style characters. * *User Intent:* Users value self-expression and personalized experiences. - **[Differentiator] Live Calculator Integration:** Built-in calculator allows typing expressions to see results and insert them instantly. - **[Differentiator] Live Unit Converter:** Converts units like length, weight, and temperature directly within the keyboard interface. ## Market Position {#market-position} Keyboard Math: Symbols & Units occupies a niche within the Utilities category, focusing on technical productivity rather than general-purpose typing. The lack of a monetization model suggests a focus on user acquisition over immediate revenue. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is currently offered for free with no visible subscription or IAP gates. ## SWOT Analysis {#swot} **Core Strengths:** - Privacy-first architecture functions without full-access permissions **Growth Levers:** - Subscription-based Pro tier for custom LaTeX macro libraries ## What's New - **Latest (v1.1, 2 months ago):** Integrated a live calculator for real-time expression solving and a unit converter for length, weight, area, temperature, and speed. ## App Momentum (Maintenance) {#momentum} - Shipped calculator and unit converter features. - Quiet 77 days, maintenance mode only. > **Cadence:** 1 total versions · 1 majors in last 6 months · 77 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Keyboard Math: Symbols & Units is an utilities app that is completely free. > **Bottom Line:** Keyboard Math: Symbols & Units provides high-utility tools for STEM users, but the current maintenance-mode posture risks losing the user base to more active competitors. Establishing a predictable update cadence would stabilize the product's position in the productivity utility space. **Best for:** STEM students, engineers, and teachers who require frequent access to mathematical symbols and unit conversions. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit user retention because the app has been silent for 77 days → prevent total churn ### Outlook: Stable The productivity utility market is consolidating around apps that offer frequent feature updates and cross-platform sync. Keyboard Math: Symbols & Units remains in a static state, which will likely lead to a decline in relevance as users migrate to more actively supported tools. - 🔴 The 77-day update gap suggests the developer has shifted focus, which risks the app becoming incompatible with future iOS versions. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Keyboard Math: Symbols & Units** (this app) | N/A/5 | N/A | 鸿宇 何 | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.9/5 | N/A | Cat Connect | | [V2Box - V2ray Client](https://marlvel.ai/apps/v2box-v2ray-client) | 4.6/5 | n/a | techlaim | | [App For Siri Commands Tips](https://marlvel.ai/apps/app-for-siri-commands-tips) | N/A/5 | N/A | Anh La Phan Son | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Bin Days - Bin Reminder](https://marlvel.ai/apps/bin-days-bin-reminder) | N/A/5 | N/A | Vicki Partridge | ## Company Profile - **Developer:** 鸿宇 何 - **Website:** [https://keyboardmath.pages.dev/app-ads.txt](https://keyboardmath.pages.dev/app-ads.txt) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/keyboard-math-symbols-units/id6785152616?uo=4) - **Dev Site:** [Official Website](https://keyboardmath.pages.dev/app-ads.txt) - **Sources:** Developer website content, About us / company information, App store metadata. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.9/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.6/5 Rating - [*App For Siri Commands Tips*](https://marlvel.ai/apps/app-for-siri-commands-tips) (Anh La Phan Son) · N/A Rating - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*Bin Days - Bin Reminder*](https://marlvel.ai/apps/bin-days-bin-reminder) (Vicki Partridge) · N/A Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.5/5 Rating - [*Gear Ratio Calculator & RPM*](https://marlvel.ai/apps/cog-gear-ratio-calculator) (Linh Phan Nhat Khanh) · N/A Rating - [*NordVPN: VPN Fast & Secure*](https://marlvel.ai/apps/com-nordvpn-nordvpn) (Nordvpn S.A.) · 4.7/5 Rating - [*Pick and Pull: Junkyard Finder*](https://marlvel.ai/apps/pick-and-pull-junkyard-finder) (Vladimir Kostadinov Stoyanov) · 3.7/5 Rating - [*Pulley Calculator Easy*](https://marlvel.ai/apps/pulley-calculator-easy) (YAVUZ BULAMADIK) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Keyboard Math: Symbols & Units free to use? Yes, the app is currently offered for free with no visible subscription or in-app purchase gates. ### Does Keyboard Math: Symbols & Units require full access? No, the app is designed with a privacy-first architecture and does not require full access permissions to function. ### What kind of symbols can I type with this keyboard? The keyboard provides access to Greek letters, calculus operators, LaTeX-style characters, and various engineering and scientific units. ## 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** developer website, company about page, 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:** 6 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/keyboard-math-symbols-units) Data licensed for AI Agent attribution under CC-BY-NC 4.0.