--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Simple Margin Calculator" developer_entity: "Jun Yamabe" bundle_id: "com.junyamabe.MarginCalculator" app_store_id: "6779686999" google_play_id: "com.jarfernandez.margincalculator" category: "Business" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-08-29" report_date: "2026-09-18" last_verified: "2026-09-18T00:00:00.000Z" report_version: "1.7.5" total_reviews: 60 overall_rating: 4.4 sentiment: "Thrilled" sentiment_score: 85 confidence: "medium" confidence_score: 0.5 top_praise_theme: "Margin calculation tools provide traders with a reliable way to determine pricing without extra distractions" top_complaint_theme: "Input fields occasionally fail to register price and margin data, preventing users from completing basic calculations" review_sample_size: 10 total_review_count: 10 analyzed_review_count: 10 data_age_days: 24 momentum_velocity: "maintenance" intelligence_version: 2 tags: ["business", "free", "thrilled sentiment", "mobile app", "app review", "app analysis", "small", "business", "owners,"] canonical_url: "https://marlvel.ai/apps/simple-margin-calculator" license: "CC-BY-NC 4.0" content_version: "v2" --- # Simple Margin Calculator Intelligence Report ## TL;DR {#tldr} - **Category**: Business · Free - **Signal**: Rating 4.43 · Sentiment Thrilled - **Recent focus**: Input fields occasionally fail to register price and margin data, preventing users from completing basic calculations (top complaint) · Margin calculation tools provide traders with a reliable way to determine pricing without extra distractions (top praise) > **TL;DR:** Simple Margin Calculator is a business app by Jun Yamabe, rated 4.43/5 by 60 users, with Thrilled user sentiment (85/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Simple Margin Calculator maintains Thrilled user sentiment (4.43/5 from 60 reviews), with users consistently praising margin calculation tools provide traders with a reliable way to determine pricing without extra distractions. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.43/5 (60 reviews) | | **User Mood** | Thrilled | | **Category** | Business | | **Developer** | Jun Yamabe | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Medium (0.5/1.0) | | **Data Age** | 24d | ## Metadata & Market Performance - **Publisher:** Jun Yamabe - **Category:** Business - **Target Audience:** Small business owners, resellers, and entrepreneurs who need to calculate product profitability and pricing. - **Platforms:** iOS & Android - **Version Reviewed:** 1.0.0 - **Report Date:** 2026-09-18 - **Signal Count:** 10 reviews analyzed - **Confidence:** Medium (0.5/1.0) - **App Store ID (iOS):** 6779686999 - **Bundle ID:** com.junyamabe.MarginCalculator - **Google Play ID:** com.jarfernandez.margincalculator - **Data Window:** Analysis based on signals collected up to 2026-09-18 ## Executive Snapshot **What it is:** Simple Margin Calculator is a pricing utility for small business owners and resellers to compute profit, margin, and markup percentages on iOS and Android. **Why users hire it:** The tool removes the cognitive friction of manual pricing math, allowing users to calculate required selling prices based on specific tax and fee variables. ## App DNA (Features & Intent) - **[Standard] Margin and Markup Calculation:** Computes profit, margin percentage, and markup percentage based on cost and selling price inputs. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Target Margin Solver:** Calculates required selling price based on cost, fees, tax, and desired margin percentage. - **[Standard] Fee and Tax Adjustments:** Includes optional fields for selling fees and tax percentages to refine profit accuracy. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Simple Margin Calculator operates in the Business utility space, maintaining a 4.4 rating across 60 total ratings. The lack of a paid tier suggests a focus on broad reach rather than high-ARPU monetization. ## Monetization Strategy - **Model:** Free - **Tiers:** Free with ad support - **Analysis:** Simple Margin Calculator is free to use and monetizes through ad-inventory, with no subscription or paid-tier gates identified. ## 🟢 User Sentiment (Medium Confidence: 10 of 10 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.43/5 - **Platform Split:** Android 4.4/5 (60 ratings) - **Overall Sentiment:** Thrilled ### Top Praises - **Margin calculation tools provide traders with a reliable way to determine pricing without extra distractions** - **Minimalist interface design ensures that users can perform quick calculations without navigating through unnecessary clutter** ### Top Complaints (Impact Areas) - **Input fields occasionally fail to register price and margin data, preventing users from completing basic calculations** ## SWOT Analysis {#swot} **Core Strengths:** - Target Margin Solver provides a specific workflow for resellers - Minimalist interface design ensures quick task completion **Growth Levers:** - Premium ad-free tier could capture value from professional users ## What's New - **Latest (v1.7.5, 2 weeks ago):** Technical maintenance focused on library updates. ## App Momentum (Maintenance) {#momentum} - Ships bug fixes at ~9-week cadence. - Maintains stable, maintenance-only release velocity. > **Cadence:** 2 total versions · 0 majors in last 6 months · 19 days since last update · 73 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Simple Margin Calculator is a market-leading business app that is completely free. With a 4.43/5 rating from 60 reviews, it delivers strong user satisfaction. > **Bottom Line:** Simple Margin Calculator provides a reliable, focused tool for pricing decisions, but intermittent input failures and ad-friction erode the user experience. Addressing field stability and testing an ad-free tier would unlock higher retention among professional users. **Best for:** Small business owners, resellers, and entrepreneurs who need to calculate product profitability and pricing. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Audit input field stability because users report intermittent failures during calculation → improve task completion rate ### Outlook: Stable The pricing utility market is consolidating around tools that offer higher accuracy for complex tax and fee structures. Simple Margin Calculator remains stable but exposed, as its current maintenance-only cadence prevents it from answering the feature-rich updates of emerging competitors. - 🔴 Input field failures in the latest release erode the daily habit, which compounds the frustration already visible in user reviews. - ⚪ The current maintenance-only release cadence suggests a lack of active feature investment, leaving the app vulnerable to rivals with faster update cycles. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.43/5 | | Total Reviews | 60 | | Sentiment | Thrilled (85/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Simple Margin Calculator** (this app) | 4.43/5 | Thrilled | Jun Yamabe | | [긱톡 - 재택부업, 프리랜서, 단기알바 정보 플랫폼](https://marlvel.ai/apps/com-gigtalk-gigtalk) | 4.5/5 | N/A | Nextstep Inc. | | [두란노](https://marlvel.ai/apps/app--971) | N/A/5 | N/A | Duranno | | [쿠펀치](https://marlvel.ai/apps/coupang-app-coupunch) | 1.0/5 | N/A | Coupang Corp. | | [아지트 - 함께 소통하는 업무용 커뮤니티](https://marlvel.ai/apps/app--797) | 3.0/5 | N/A | Kakao Corp. | | [シフオプ](https://marlvel.ai/apps/shift-management-service-to-support-optimal-placem) | N/A/5 | N/A | Recruit Co.,Ltd. | ## Company Profile - **Developer:** Jun Yamabe - **Website:** [https://t5kit.github.io/junapps-support/index.html](https://t5kit.github.io/junapps-support/index.html) ## Data Sources & Links - **App Store ID:** 6779686999 - **Google Play ID:** com.jarfernandez.margincalculator - **Dev Site:** [Official Website](https://t5kit.github.io/junapps-support/index.html) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*긱톡 - 재택부업, 프리랜서, 단기알바 정보 플랫폼*](https://marlvel.ai/apps/com-gigtalk-gigtalk) (Nextstep Inc.) · 4.5/5 Rating - [*두란노*](https://marlvel.ai/apps/app--971) (Duranno) · N/A Rating - [*쿠펀치*](https://marlvel.ai/apps/coupang-app-coupunch) (Coupang Corp.) · 1.0/5 Rating - [*아지트 - 함께 소통하는 업무용 커뮤니티*](https://marlvel.ai/apps/app--797) (Kakao Corp.) · 3.0/5 Rating - [*シフオプ*](https://marlvel.ai/apps/shift-management-service-to-support-optimal-placem) (Recruit Co.,Ltd.) · N/A Rating - [*아임히어 - 모바일 출결 관리 앱*](https://marlvel.ai/apps/com-imhere-client-student) (LFin) · 2.9/5 Rating - [*카매니저 - 중고차 딜러전용 전국 매물공유 플랫폼*](https://marlvel.ai/apps/kr-co-autocafe-carmanager) (atonmobility appmaster) · 3.0/5 Rating - [*금호고속 셔틀*](https://marlvel.ai/apps/kr-co-kumhobuslines-shuttle-route-passengernew) (kumhoexpress) · 2.1/5 Rating - [*쿠팡이츠 배달 파트너*](https://marlvel.ai/apps/coupang-eats-delivery) (Coupang Corp.) · 2.6/5 Rating - [*쿠팡이츠 스토어*](https://marlvel.ai/apps/coupang-eats-merchant) (Coupang Corp.) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Simple Margin Calculator suitable for professional resellers? Yes, the app includes this app Margin Solver and tax/fee adjustments specifically designed for resellers and small business owners to calculate profitability. ### Does Simple Margin Calculator have intrusive advertisements? Users report that advertisements can be disruptive during use, which detracts from the app's minimalist design. ### What is a free alternative to Simple Margin Calculator? While many general-purpose calculator apps exist, Simple Margin Calculator is unique for its specific focus on margin and markup math for business owners. ## 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:** 0.5/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 10 - **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:** 24 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/simple-margin-calculator) Data licensed for AI Agent attribution under CC-BY-NC 4.0.