--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Math Keeper+" developer_entity: "William Wu" bundle_id: "com.williamwu.MathKeeper" app_store_id: "1263494799" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2017-10-31" report_date: "2026-09-14" last_verified: "2026-09-14T00:00:00.000Z" report_version: "1.1" total_reviews: 2 overall_rating: 5 sentiment: "Thrilled" sentiment_score: 90 confidence: "low" confidence_score: 0.3 top_praise_theme: "The application provides significant health benefits that users describe as miraculous for their specific medical conditions" review_sample_size: 1 total_review_count: 1 analyzed_review_count: 1 data_age_days: 16 momentum_velocity: "zombie" intelligence_version: 2 tags: ["education", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "school", "students", "individuals"] canonical_url: "https://marlvel.ai/apps/math-keeper" license: "CC-BY-NC 4.0" content_version: "v2" --- # Math Keeper+ Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Free - **Signal**: Rating 5 · Sentiment Thrilled - **Recent focus**: The application provides significant health benefits that users describe as miraculous for their specific medical conditions (top praise) > **TL;DR:** Math Keeper+ is a education app by William Wu, rated 5/5 by 2 users, with Thrilled user sentiment (90/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Math Keeper+ maintains Thrilled user sentiment (5/5 from 2 reviews), with users consistently praising the application provides significant health benefits that users describe as miraculous for their specific medical conditions. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (2 reviews) | | **User Mood** | Thrilled | | **Category** | Education | | **Developer** | William Wu | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 16d | ## Metadata & Market Performance - **Publisher:** William Wu - **Category:** Education - **Target Audience:** High school students and individuals seeking a quick reference tool for mathematical formulas. - **Platforms:** iOS - **Version Reviewed:** 1.1 - **Report Date:** 2026-09-14 - **Signal Count:** 1 review analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 1263494799 - **Bundle ID:** com.williamwu.MathKeeper - **Data Window:** Analysis based on signals collected up to 2026-09-14 ## Executive Snapshot **What it is:** Math Keeper+ is an offline reference app for high school math formulas and calculations on iOS. **Why users hire it:** The app removes the need for internet connectivity when accessing standard mathematical formulas, serving users who prefer a lightweight, static reference tool over modern, cloud-dependent alternatives. ## App DNA (Features & Intent) - **[Standard] Formula Reference Library:** Collection of over 100 high school math formulas for quick review. - **[Differentiator] Custom Notes and Editing:** User-editable fields to modify existing formulas or add personal notes. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Integrated Calculator:** Built-in calculator accessible via swipe gesture. ## Market Position {#market-position} Math Keeper+ maintains a 5-star rating based on two reviews, positioning itself as a niche, static utility in the Education category. The lack of updates since 2017 indicates a mature, maintenance-only lifecycle that avoids the monetization friction found in modern, subscription-based educational apps. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all features - **Analysis:** Math Keeper+ is distributed as a free utility without visible monetization gates or subscription tiers. ## 🟢 User Sentiment (Low Confidence: 1 of 1 review analyzed) {#user-sentiment} - **Overall Rating:** 5/5 - **Platform Split:** iOS 5.0/5 (2 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **The application provides significant health benefits that users describe as miraculous for their specific medical conditions** ## SWOT Analysis {#swot} **Core Strengths:** - Offline-first architecture removes connectivity dependencies **Growth Levers:** - Modernizing the UI could attract users seeking non-subscription alternatives ## What's New - **Latest (v1.1, 8 years ago):** Introduced a multi-function calculator. ## App Momentum (Zombie) {#momentum} - Dormant since 2017. - No active feature development. > **Cadence:** 1 total versions · 1 majors in last 6 months · 3239 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Math Keeper+ is an education app that is completely free. It holds a 5/5 rating from 2 reviews. > **Bottom Line:** Math Keeper+ provides a stable, offline reference tool, but the eight-year development silence prevents it from scaling against active educational competitors. **Best for:** High school students and individuals seeking a quick reference tool for mathematical formulas. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit compatibility with current iOS versions because the app has not been updated since 2017 → prevent potential crashes on newer hardware ### Outlook: Stable The education category is consolidating around interactive, cloud-connected platforms, leaving static reference tools like Math Keeper+ in a niche, legacy position. Continued silence in the release cycle will likely lead to a slow decline in discoverability as OS requirements evolve beyond the app's 2017 codebase. - ⚪ The eight-year development gap indicates a maintenance-only posture, which limits the app's ability to capture new market share in the education category. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 2 | | Sentiment | Thrilled (90/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Math Keeper+** (this app) | 5/5 | Thrilled | William Wu | | [AlgoApp - Flashcards](https://marlvel.ai/apps/algoapp-flashcards) | 4.5/5 | n/a | AlgoApp Inc | | [Elevate - Brain Training Games](https://marlvel.ai/apps/elevate-brain-training-games) | 4.7/5 | n/a | The Mind Company | | [Flashcards Deluxe](https://marlvel.ai/apps/flashcards-deluxe) | 4.5/5 | N/A | OrangeOrApple.com | | [Flash Cards Flashcards Maker](https://marlvel.ai/apps/flash-cards-flashcards-maker) | 4.0/5 | Mixed | Infinite Wave Media, LLC | | [Flashcards maker - AI generate](https://marlvel.ai/apps/flashcards-maker-ai-generate) | 4.1/5 | Mixed | Teleprompter LLC | ## Company Profile - **Developer:** William Wu ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/math-keeper/id1263494799?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*AlgoApp - Flashcards*](https://marlvel.ai/apps/algoapp-flashcards) (AlgoApp Inc) · 4.5/5 Rating - [*Elevate - Brain Training Games*](https://marlvel.ai/apps/elevate-brain-training-games) (The Mind Company) · 4.7/5 Rating - [*Flashcards Deluxe*](https://marlvel.ai/apps/flashcards-deluxe) (OrangeOrApple.com) · 4.5/5 Rating - [*Flash Cards Flashcards Maker*](https://marlvel.ai/apps/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) · 4.0/5 Rating - [*Flashcards maker - AI generate*](https://marlvel.ai/apps/flashcards-maker-ai-generate) (Teleprompter LLC) · 4.1/5 Rating - [*Impulse - Brain Training*](https://marlvel.ai/apps/impulse-brain-training) (GMRD Apps Limited) · 4.6/5 Rating - [*Peak - Brain Training*](https://marlvel.ai/apps/peak-brain-training) (Synaptic Labs) · 4.7/5 Rating - [*자주 틀리는 우리말*](https://marlvel.ai/apps/app--424) (DaolSoft, Co., Ltd.) · N/A Rating - [*달공부 - 한 달 공부 다이어리 + 루틴/공부 타이머*](https://marlvel.ai/apps/azlabs-dalstudy) (SuWon Choi) · N/A Rating - [*타요콘 - 타요 아바타 놀이동화*](https://marlvel.ai/apps/com-kigle-project-tayocon) (KIGLE) · 3.1/5 Rating ## Frequently Asked Questions {#faq} ### Is Math Keeper+ free to use? Yes, Math Keeper+ is currently distributed as a free utility with no visible monetization gates or subscription tiers. ### Does Math Keeper+ work without an internet connection? Yes, Math Keeper+ is designed as an offline-first reference app, allowing access to formulas and the calculator without requiring a network connection. ### What is a free alternative to Math Keeper+? Users seeking more active development might consider modern educational apps that offer interactive learning, though many of these may include subscription-based monetization. ## 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:** 1 - **Data Sources:** user reviews, 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:** 16 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/math-keeper) Data licensed for AI Agent attribution under CC-BY-NC 4.0.