--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "GST Calculator +" developer_entity: "Nirav Patel" bundle_id: "com.arrayinfo.gstcalc" app_store_id: "1436676138" category: "Business" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2018-09-22" report_date: "2026-09-15" last_verified: "2026-09-15T00:00:00.000Z" report_version: "1.0" total_reviews: 1 overall_rating: 5 confidence: "low" confidence_score: 0.05 data_age_days: 16 momentum_velocity: "zombie" intelligence_version: 2 tags: ["business", "free", "mobile app", "app review", "app analysis", "business", "users", "individuals"] canonical_url: "https://marlvel.ai/apps/gst-calculator" license: "CC-BY-NC 4.0" content_version: "v2" --- # GST Calculator + Intelligence Report ## TL;DR {#tldr} - **Category**: Business · Free - **Signal**: Rating 5 > **TL;DR:** GST Calculator + is a business app by Nirav Patel, rated 5/5 by 1 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** GST Calculator + is a business app by Nirav Patel. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (1 review) | | **Category** | Business | | **Developer** | Nirav Patel | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 16d | ## Metadata & Market Performance - **Publisher:** Nirav Patel - **Category:** Business - **Target Audience:** Business users and individuals requiring quick tax or percentage calculations for transactions. - **Platforms:** iOS - **Version Reviewed:** 1.0 - **Report Date:** 2026-09-15 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 1436676138 - **Bundle ID:** com.arrayinfo.gstcalc - **Data Window:** Analysis based on signals collected up to 2026-09-15 ## Executive Snapshot **What it is:** GST Calculator + is a specialized tax-arithmetic utility for iOS users that calculates GST and percentage-based values. **Why users hire it:** It removes the cognitive friction of manual tax-inclusive or tax-exclusive math by providing a dedicated, real-time calculation interface. ## App DNA (Features & Intent) - **[Standard] GST Calculation Engine:** Calculates tax amounts based on user-defined rates or five pre-set tax brackets (3%, 5%, 12%, 18%, 28%). - **[Differentiator] Bi-directional Tax Adjustment:** Adds or removes tax from a base amount using positive or negative rate selection. - **[Standard] Real-time Calculation:** Updates result fields as the user types the initial transaction amount. ## Market Position {#market-position} GST Calculator + maintains a niche utility position with a 5-star rating on the App Store. The lack of updates for 2915 days signals a maintenance-only posture in a category where rivals frequently refresh for OS-level compatibility. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is distributed as a free utility with no observable in-app purchases or subscription tiers. ## SWOT Analysis {#swot} **Core Strengths:** - Bi-directional tax adjustment logic - Real-time calculation engine **Growth Levers:** - Add transaction history log - Implement PDF result export ## App Momentum (Zombie) {#momentum} - Dormant for 95 months. - No updates since 2018. > **Cadence:** 1 total versions · 1 majors in last 6 months · 2914 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} GST Calculator + is a business app that is completely free. It holds a 5/5 rating from 1 review. > **Bottom Line:** GST Calculator + relies on its core bi-directional math engine to provide value, but the 95-month update gap leaves the tool vulnerable to OS-native calculator improvements. Investing in export functionality would shift the tool from a simple calculator to a professional utility. **Best for:** Business users and individuals requiring quick tax or percentage calculations for transactions. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit the current user-interface for modern accessibility standards because the 2018-era design lacks current platform-native support → maintain baseline usability. ### Outlook: Stable The utility market is consolidating around OS-native tools, leaving single-purpose apps like GST Calculator + in a stable but stagnant position. Without feature expansion, the app will continue to serve its existing base but will struggle to grow against rivals that integrate history and export workflows. - ⚪ The 2915-day update gap indicates a maintenance-only posture, which limits the ability to capture new users through platform-native feature integration. - 🟢 The bi-directional tax logic remains a functional differentiator that provides immediate value for users performing tax-exclusive or inclusive calculations. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 1 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **GST Calculator +** (this app) | 5/5 | N/A | Nirav Patel | | [Groupon Merchant](https://marlvel.ai/apps/groupon-merchant) | 3.0/5 | n/a | Groupon, Inc. | | [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. | ## Company Profile - **Developer:** Nirav Patel ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/gst-calculator/id1436676138?uo=4) - **Sources:** App store metadata. ## Related Intel Reports - [*Groupon Merchant*](https://marlvel.ai/apps/groupon-merchant) (Groupon, Inc.) · 3.0/5 Rating - [*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 ## Frequently Asked Questions {#faq} ### Is GST Calculator + suitable for professional business accounting? GST Calculator + is designed for quick tax and percentage arithmetic. While it handles GST rates effectively, it lacks professional features like transaction history, data export, or multi-user support. ### Does GST Calculator + allow me to calculate tax-exclusive amounts? Yes, the app supports bi-directional tax adjustment. By selecting a negative GST rate, you can remove the tax amount from a total to find the original base price. ### What is the main difference between this and a standard calculator? Standard calculators require manual steps to add or remove percentages. GST Calculator + provides pre-set tax brackets (3%, 5%, 12%, 18%, 28%) and a dedicated toggle for adding or removing tax with a single button. ### Are there any free alternatives to GST Calculator +? Most mobile operating systems include a built-in calculator, and there are numerous free tax-specific utilities on the App Store. GST Calculator + is a free, simple alternative for those preferring a dedicated tool for GST math. ## 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:** 16 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/gst-calculator) Data licensed for AI Agent attribution under CC-BY-NC 4.0.