--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Math Keyboard - Formula Input" developer_entity: "Yuta Nishimatsu" bundle_id: "yuta-nishimatsu.math-keyboard" app_store_id: "6757350527" category: "Utilities" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-05-27" report_date: "2026-08-28" last_verified: "2026-08-28T00:00:00.000Z" report_version: "4.1" total_reviews: 6 overall_rating: 3.3 confidence: "low" confidence_score: 0.05 data_age_days: 34 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["utilities", "freemium", "mobile app", "app review", "app analysis", "students,", "researchers,", "professionals"] canonical_url: "https://marlvel.ai/apps/math-keyboard-formula-input" license: "CC-BY-NC 4.0" content_version: "v2" --- # Math Keyboard - Formula Input Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Freemium - **Signal**: Rating 3.33 > **TL;DR:** Math Keyboard - Formula Input is a utilities app by Yuta Nishimatsu, rated 3.33/5 by 6 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Math Keyboard - Formula Input is a utilities app by Yuta Nishimatsu. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.33/5 (6 reviews) | | **Category** | Utilities | | **Developer** | Yuta Nishimatsu | | **Pricing** | Freemium | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 34d | ## Metadata & Market Performance - **Publisher:** Yuta Nishimatsu - **Category:** Utilities - **Target Audience:** Students, researchers, and professionals in math and physics who need to type complex formulas in mobile applications. - **Platforms:** iOS - **Version Reviewed:** 4.1 - **Report Date:** 2026-08-28 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 6757350527 - **Bundle ID:** yuta-nishimatsu.math-keyboard - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-28 ## Executive Snapshot **What it is:** Math Keyboard - Formula Input is a custom keyboard for iOS that enables direct input of math symbols, Greek letters, and superscripts for students and researchers. **Why users hire it:** The app removes the cognitive friction of searching for and copying technical symbols from the web, allowing users to type complex formulas directly into any mobile application. ## App DNA (Features & Intent) - **[Differentiator] Math Symbol Keyboard:** Custom keyboard layout providing direct access to Greek letters, superscripts, subscripts, and calculus symbols. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Superscript and Subscript Toggle:** Shift key functionality to switch between standard, superscript, and subscript character modes. - **[Standard] Cursor Control:** Long-press on the space bar to move the text cursor within expressions. ## Market Position {#market-position} Math Keyboard - Formula Input maintains a niche position in the Utilities category with a 3.33-star rating based on six reviews. The absence of recent feature updates over the last 93 days indicates a maintenance-only posture, limiting its ability to compete for visibility against more active developers. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free version with limited symbol categories, Pro version via one-time payment for full category access and style customization - **Analysis:** The freemium model uses a one-time purchase to unlock advanced mathematical notation sets and UI customization. ## SWOT Analysis {#swot} **Core Strengths:** - System-level keyboard integration enables symbol input across all third-party applications **Growth Levers:** - Expand symbol sets to include specialized engineering notation to differentiate from general-purpose math keyboards ## Recent Changes (v2 → v3) {#recent-changes} The app remains in a maintenance-only lifecycle with no new feature releases, though the analytical framework has shifted to more explicitly categorize the development gap as a competitive weakness. **Overall trend**: Stable **Compared at**: 2026-08-28 ### High-impact changes - **[Added] Explicit SWOT Weakness Identification** (swot) ### Medium-impact changes - **[Shifted] Market Position Narrative Update** (positioning) - **[Added] Professional Suitability Disclaimer** (features) ## What's New - **Latest (v4.1, 3 months ago):** Resolved a bug preventing existing Pro subscribers from accessing Pro categories after updates or reinstalls. ## App Momentum (Maintenance) {#momentum} - Ships maintenance-only bug fix updates. - Last major feature release over 90 days ago. > **Cadence:** 1 total versions · 0 majors in last 6 months · 92 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Math Keyboard - Formula Input is an utilities app that is free with in-app purchases. It holds a 3.33/5 rating from 6 reviews. > **Bottom Line:** Math Keyboard - Formula Input relies on its utility as a specialized keyboard, but the lack of feature updates risks obsolescence. Focusing on symbol library expansion would provide the clear value proposition needed to drive Pro conversions and improve the low rating baseline. **Best for:** Students, researchers, and professionals in math and physics who need to type complex formulas in mobile applications. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Audit user feedback to identify top missing symbols because the current library is limited to basic math -> increase Pro conversion ### Outlook: Stable The math-input utility market remains fragmented, with users prioritizing symbol breadth and keyboard responsiveness. Math Keyboard - Formula Input's current maintenance posture leaves it vulnerable to competitors that can iterate faster on symbol sets, which will likely lead to stagnant growth until a new feature cycle begins. - ⚪ The latest release addressed a billing bug, confirming the app remains in a maintenance-only lifecycle rather than active expansion. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.33/5 | | Total Reviews | 6 | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Math Keyboard - Formula Input** (this app) | 3.33/5 | N/A | Yuta Nishimatsu | | [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 | | [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) | 4.5/5 | Mixed | Fuxin Technology | ## Company Profile - **Developer:** Yuta Nishimatsu ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/math-keyboard-formula-input/id6757350527?uo=4) - **Sources:** 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 - [*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) · 4.5/5 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 - [*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 Math Keyboard - Formula Input suitable for professional research? The app provides basic math and calculus symbols, but users requiring highly specialized physics or engineering notation may find the current library limited. ### Does Math Keyboard - Formula Input require a subscription? No, the app uses a one-time payment model to unlock Pro features like advanced calculus symbols and custom keyboard settings. ### Is it safe to use this custom keyboard? The developer states that they do not collect any input data, though enabling 'Full Access' in iOS settings is required for the keyboard to function. ## 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:** 0.05/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 34 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/math-keyboard-formula-input) Data licensed for AI Agent attribution under CC-BY-NC 4.0.