--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Angle Finder - Trig Calculator" developer_entity: "Shital Gorasiya" bundle_id: "angle.trig.calculator" app_store_id: "6751524691" category: "Utilities" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-12-24" report_date: "2026-09-20" last_verified: "2026-09-20T00:00:00.000Z" report_version: "1.2" total_reviews: 4 overall_rating: 3.8 sentiment: "Upset" sentiment_score: 10 confidence: "medium" confidence_score: 0.45 top_complaint_theme: "Users report the app repeatedly prompts for premium license purchases despite successful one-time payment restoration" review_sample_size: 1 total_review_count: 1 analyzed_review_count: 1 data_age_days: 18 momentum_velocity: "zombie" intelligence_version: 2 tags: ["utilities", "freemium", "upset sentiment", "mobile app", "app review", "app analysis", "students,", "engineers,", "architects,"] canonical_url: "https://marlvel.ai/apps/angle-finder-trig-calculator" license: "CC-BY-NC 4.0" content_version: "v2" --- # Angle Finder - Trig Calculator Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Freemium - **Signal**: Rating 3.75 · Sentiment Upset - **Recent focus**: Users report the app repeatedly prompts for premium license purchases despite successful one-time payment restoration (top complaint) > **TL;DR:** Angle Finder - Trig Calculator is a utilities app by Shital Gorasiya, rated 3.75/5 by 4 users, with Upset user sentiment (10/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Angle Finder - Trig Calculator faces Upset user sentiment (3.75/5 from 4 reviews), with users reporting users report the app repeatedly prompts for premium license purchases despite successful one-time payment restoration as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.75/5 (4 reviews) | | **User Mood** | Upset | | **Category** | Utilities | | **Developer** | Shital Gorasiya | | **Pricing** | Freemium | | **Platforms** | iOS | | **Confidence** | Medium (0.45/1.0) | | **Data Age** | 18d | ## Metadata & Market Performance - **Publisher:** Shital Gorasiya - **Category:** Utilities - **Target Audience:** Students, engineers, architects, and DIY enthusiasts requiring quick geometric and trigonometric calculations. - **Platforms:** iOS - **Version Reviewed:** 1.2 - **Report Date:** 2026-09-20 - **Signal Count:** 1 review analyzed - **Confidence:** Medium (0.45/1.0) - **App Store ID (iOS):** 6751524691 - **Bundle ID:** angle.trig.calculator - **Data Window:** Analysis based on signals collected up to 2026-09-20 ## Executive Snapshot **What it is:** Angle Finder - Trig Calculator is a geometry and trigonometry utility for iOS that provides automated solvers for triangles, circles, and engineering-specific PCD measurements. **Why users hire it:** The app removes the cognitive and time cost of manual geometric formula calculation for engineering and fabrication tasks, serving users who require field-ready math solutions. ## App DNA (Features & Intent) - **[Standard] Triangle Solver:** Calculates area, perimeter, and side lengths for right, isosceles, and scalene triangles. Core utility function that drives daily active usage — expands ad-impression inventory. * *User Intent:* Users are motivated by consistent progression and daily incentives. - **[Differentiator] PCD & Chord Calculator:** Computes Pitch Circle Diameter and chord dimensions for engineering and fabrication tasks. Specialized tool for professional users — potential anchor for Lifetime Premium conversion. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Multi-Shape Geometry Solver:** Provides solutions for circles, squares, rectangles, pentagons, hexagons, and octagons. Broadens utility for students and DIY users — increases session frequency. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Lifetime Premium:** In-app purchase option for full access to all calculation tools. Paid-gate — direct conversion lever for users seeking ad-free or full-feature access. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Angle Finder - Trig Calculator occupies a niche within the Utilities category, maintaining a 3.75-star rating across 4 total ratings. The lack of recent updates over the last nine months suggests a stagnant market position relative to active competitors. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with core calculation tools, Lifetime Premium IAP - **Analysis:** The freemium model utilizes a single Lifetime Premium purchase to gate advanced features and remove friction. ## 🔴 User Sentiment (Medium Confidence: 1 of 1 review analyzed) {#user-sentiment} - **Overall Rating:** 3.75/5 - **Platform Split:** iOS 3.8/5 (4 ratings) - **Overall Sentiment:** Upset ### Top Complaints (Impact Areas) - **Users report the app repeatedly prompts for premium license purchases despite successful one-time payment restoration** ## SWOT Analysis {#swot} **Core Strengths:** - PCD and chord calculation tools provide a specific utility barrier for engineering and fabrication segments **Growth Levers:** - Implementing a transparent subscription tier could stabilize revenue compared to the current single-purchase gate ## What's New - **Latest (v1.2, 9 months ago):** Fixed in-app purchase errors and improved angle measurement precision. ## App Momentum (Zombie) {#momentum} - Quiet 9 months, no major releases. - Last update fixed purchase errors. > **Cadence:** 1 total versions · 0 majors in last 6 months · 270 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Angle Finder - Trig Calculator is an utilities app that is free with in-app purchases. It holds a 3.75/5 rating from 4 reviews. > **Bottom Line:** The persistent payment restoration failure invalidates the current monetization gate, and resolving this is the only way to unlock the Lifetime Premium conversion potential. Addressing this technical debt would stabilize the user base and prevent further churn. **Best for:** Students, engineers, architects, and DIY enthusiasts requiring quick geometric and trigonometric calculations. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Audit purchase restoration logic because users report persistent premium prompts after payment → reduce refund surge ### Outlook: Declining The engineering utility market is consolidating around apps with frequent, verified update cadences. Angle Finder - Trig Calculator's current trajectory is declining, as the lack of development velocity and broken monetization logic prevent it from competing with active rivals. - 🔴 The nine-month release gap suggests the app is in maintenance mode, which erodes professional user trust in calculation accuracy. - 🔴 Persistent payment restoration failures drive negative sentiment, which compounds the risk of refund requests and store-level visibility penalties. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.75/5 | | Total Reviews | 4 | | Sentiment | Upset (10/100) | | Confidence | Medium | | Pricing Model | Freemium | | Platforms | iOS | | Key Features | 4 analyzed | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Angle Finder - Trig Calculator** (this app) | 3.75/5 | Upset | Shital Gorasiya | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.8/5 | 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 | | [Fusvob VPN : Super VPN 2026](https://marlvel.ai/apps/com-toplinkc-foxexcellent) | 4.5/5 | Mixed | Fuxin Technology | | [Gear Ratio Calculator & RPM](https://marlvel.ai/apps/cog-gear-ratio-calculator) | N/A/5 | N/A | Linh Phan Nhat Khanh | ## Company Profile - **Developer:** Shital Gorasiya - **Website:** [https://vidsaverr.in](https://vidsaverr.in) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/angle-finder-trig-calculator/id6751524691?uo=4) - **Dev Site:** [Official Website](https://vidsaverr.in) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.8/5 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 - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.5/5 Rating - [*Gear Ratio Calculator & RPM*](https://marlvel.ai/apps/cog-gear-ratio-calculator) (Linh Phan Nhat Khanh) · N/A Rating - [*NordVPN: VPN Fast & Secure*](https://marlvel.ai/apps/com-nordvpn-nordvpn) (Nordvpn S.A.) · 4.7/5 Rating - [*Pulley Calculator Easy*](https://marlvel.ai/apps/pulley-calculator-easy) (YAVUZ BULAMADIK) · N/A Rating - [*VPN 365-Master WIFI Security*](https://marlvel.ai/apps/vpn-365-master-wifi-security) (vpn fast) · 4.6/5 Rating - [*VPN - Seal VPN Secure Proxy*](https://marlvel.ai/apps/vpn-seal-vpn-secure-proxy) (Starpass VPN Free) · 4.6/5 Rating | Positive Sentiment - [*카톡 분석 - 오픈채팅, 카톡 채팅 분석, 통계, 검색*](https://marlvel.ai/apps/com-liger-katalkanalysispaid) (Park Sung Cheol) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Angle Finder - Trig Calculator suitable for professional engineering work? The app provides specialized PCD and chord calculators for fabrication, but the lack of recent updates over the last nine months may raise concerns regarding the ongoing maintenance of calculation accuracy. ### Does the Lifetime Premium purchase unlock all features? Yes, the Lifetime Premium purchase is intended to grant full access to all calculation tools, though some users report issues with the app failing to recognize their purchase after restoration. ### What is the difference between the free and premium versions? The free tier provides access to core calculation tools, while the Lifetime Premium purchase gates advanced features and removes friction. ## 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:** 1 - **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:** 18 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/angle-finder-trig-calculator) Data licensed for AI Agent attribution under CC-BY-NC 4.0.