--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Quick Formula Calculator" developer_entity: "庆鸿 林" bundle_id: "me.fapp.formula" app_store_id: "6754241699" category: "Education" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-09-24" report_date: "2026-09-26" last_verified: "2026-09-26T00:00:00.000Z" report_version: "1.0.8" total_reviews: 1 overall_rating: 2 sentiment: "Mixed" sentiment_score: 45 confidence: "medium" confidence_score: 0.45 top_praise_theme: "The ability to pre-program custom calculation formulas provides utility for users needing specialized math tools" top_complaint_theme: "The application lacks a background state, causing users to lose unsaved progress when switching between apps" review_sample_size: 4 total_review_count: 4 analyzed_review_count: 4 data_age_days: 4 momentum_velocity: "maintenance" intelligence_version: 2 tags: ["education", "freemium", "mixed sentiment", "mobile app", "app review", "app analysis", "students,", "engineers,", "finance"] canonical_url: "https://marlvel.ai/apps/quick-formula-calculator" license: "CC-BY-NC 4.0" content_version: "v2" --- ## ⚠ Content Warning This report covers topics classified as sensitive (finance). Information is aggregated from public sources for informational purposes only. This is not financial or investment advice. Always do your own research. --- # Quick Formula Calculator Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Freemium - **Signal**: Rating 2 · Sentiment Mixed - **Recent focus**: The application lacks a background state, causing users to lose unsaved progress when switching between apps (top complaint) · The ability to pre-program custom calculation formulas provides utility for users needing specialized math tools (top praise) > **TL;DR:** Quick Formula Calculator is a education app by 庆鸿 林, rated 2/5 by 1 users, with Mixed user sentiment (45/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Quick Formula Calculator shows Mixed sentiment (2/5 from 1 review) - users praise the ability to pre-program custom calculation formulas provides utility for users needing specialized math tools but report issues with the application lacks a background state, causing users to lose unsaved progress when switching between apps. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 2/5 (1 review) | | **User Mood** | Mixed | | **Category** | Education | | **Developer** | 庆鸿 林 | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | Medium (0.45/1.0) | | **Data Age** | 4d | ## Metadata & Market Performance - **Publisher:** 庆鸿 林 - **Category:** Education - **Target Audience:** Students, engineers, and finance professionals requiring custom, reusable mathematical formulas for daily tasks. - **Platforms:** iOS & Android - **Version Reviewed:** 1.0.8 - **Report Date:** 2026-09-26 - **Signal Count:** 4 reviews analyzed - **Confidence:** Medium (0.45/1.0) - **App Store ID (iOS):** 6754241699 - **Bundle ID:** me.fapp.formula - **Google Play ID:** me.fapp.formula - **Data Window:** Analysis based on signals collected up to 2026-09-26 ## Executive Snapshot **What it is:** Quick Formula Calculator is a custom math tool for students and engineers that allows users to build and save personalized formulas on iOS and Android. **Why users hire it:** The app replaces static calculators by removing the cognitive cost of re-entering complex formulas, though the current lack of background state persistence forces users to restart calculations after switching apps. ## App DNA (Features & Intent) - **[Differentiator] Custom Formula Builder:** Define variables, functions, and units to create personalized calculation tools. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Calculation History:** Automatic logging of past calculations for one-tap reuse. - **[Standard] Date Calculator:** Tool for determining time intervals or specific dates. ## Market Position {#market-position} Quick Formula Calculator operates in the Education category, maintaining a 2.0-star rating on iOS across a limited initial review sample. The current lack of user-driven growth signals suggests the app is still in the early discovery phase. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with ad support - **Analysis:** The freemium model relies on ad-supported engagement, with IAP availability noted in Android metadata. ## 🟡 User Sentiment (Medium Confidence: 4 of 4 reviews analyzed) {#user-sentiment} - **Overall Rating:** 2/5 - **Platform Split:** iOS 2.0/5 (1 ratings) - **Overall Sentiment:** Mixed ### Top Praises - **The ability to pre-program custom calculation formulas provides utility for users needing specialized math tools** ### Top Complaints (Impact Areas) - **The application lacks a background state, causing users to lose unsaved progress when switching between apps** ## SWOT Analysis {#swot} **Core Strengths:** - Custom variable-based formula builder enables personalized workflows. - Automatic calculation history reduces friction for recurring tasks. **Growth Levers:** - Home screen widget integration would improve access speed. - Backup and restore functionality would increase data portability. ## What's New - **Latest (v1.0.8, 3 days ago):** Improved trigonometric accuracy, enhanced calculation history management, and refined formula text readability. ## App Momentum (Maintenance) {#momentum} - Shipped trigonometric accuracy improvements. - Refined formula editing interface. - Ships ~2 releases per year. > **Cadence:** 2 total versions · 1 majors in last 6 months · 3 days since last update · 109 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Quick Formula Calculator is an education app that is free with in-app purchases. It holds a 2/5 rating from 1 review. > **Bottom Line:** Implementing background state persistence is the critical path to stabilizing the user base, as the current data-loss issue directly erodes the daily active habit. **Best for:** Students, engineers, and finance professionals requiring custom, reusable mathematical formulas for daily tasks. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship background state persistence because users report losing work during multitasking → reduce churn ### Outlook: Mixed The market for specialized calculation tools is consolidating around apps that offer seamless cross-device syncing and high reliability. Quick Formula Calculator remains exposed due to its current technical instability, which risks alienating the power users who value its customization features. - 🔴 Lack of background state persistence causes data loss during multitasking, which directly erodes the daily active habit. - 🟢 The core formula customization utility provides a clear value proposition that users appreciate for specialized math tasks. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 2/5 | | Total Reviews | 1 | | Sentiment | Mixed (45/100) | | Confidence | Medium | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Outlook | Mixed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Quick Formula Calculator** (this app) | 2/5 | Mixed | 庆鸿 林 | | [ALPA: Lernspiele für Kinder](https://marlvel.ai/apps/alpa-lernspiele-fur-kinder) | N/A/5 | N/A | ALPA Kids OU | | [ATPdigital (Legacy)](https://marlvel.ai/apps/atpdigital-legacy) | 2.0/5 | n/a | Bristol Groundschool International Ltd | | [Catbus Student](https://marlvel.ai/apps/catbus-student) | 4.3/5 | N/A | Cohota Join Stock Company | | [Chinese Tibetan Dictionary](https://marlvel.ai/apps/chinese-tibetan-dictionary) | 5.0/5 | Thrilled | Lobsang Monlam16922404891 | | [Legasthenie & LRS Trainer](https://marlvel.ai/apps/legasthenie-lrs-trainer) | N/A/5 | N/A | Matthias Aigner | ## Company Profile - **Developer:** 庆鸿 林 - **Website:** [https://iosgettingsupport.web.app](https://iosgettingsupport.web.app) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/quick-formula-calculator/id6754241699?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=me.fapp.formula&hl=en&gl=us) - **Dev Site:** [Official Website](https://iosgettingsupport.web.app) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*ALPA: Lernspiele für Kinder*](https://marlvel.ai/apps/alpa-lernspiele-fur-kinder) (ALPA Kids OU) · N/A Rating - [*ATPdigital (Legacy)*](https://marlvel.ai/apps/atpdigital-legacy) (Bristol Groundschool International Ltd) · 2.0/5 Rating - [*Catbus Student*](https://marlvel.ai/apps/catbus-student) (Cohota Join Stock Company) · 4.3/5 Rating - [*Chinese Tibetan Dictionary*](https://marlvel.ai/apps/chinese-tibetan-dictionary) (Lobsang Monlam16922404891) · 5.0/5 Rating | Excellent Sentiment - [*Legasthenie & LRS Trainer*](https://marlvel.ai/apps/legasthenie-lrs-trainer) (Matthias Aigner) · N/A Rating - [*Lyceum Leaf Parent*](https://marlvel.ai/apps/lyceum-leaf-parent) (Techcess Business Solutions (Pvt) Ltd) · N/A Rating - [*Money Matrix (CAD)*](https://marlvel.ai/apps/money-matrix-cad) (Blooming Kids Software LLC) · 5.0/5 Rating - [*myTibetan*](https://marlvel.ai/apps/mytibetan) (Yury Nevalenny) · 4.8/5 Rating | Excellent Sentiment - [*Quran Treasure Island for Kids*](https://marlvel.ai/apps/quran-treasure-island-for-kids) (Akeela Manekia) · 4.9/5 Rating - [*Sudoku - Number Puzzle Pro*](https://marlvel.ai/apps/sudoku-number-puzzle-pro) (阳理 江) · N/A Rating ## 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:** 0.45/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 4 - **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:** 4 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/quick-formula-calculator) Data licensed for AI Agent attribution under CC-BY-NC 4.0.