---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "Angle Master"
developer_entity: "Chelsea Farley"
bundle_id: "com.tripwiretech.anglemaster"
app_store_id: "1532625767"
category: "Education"
primary_platform: "ios"
primary_monetization: "Free"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2020-09-30"
report_date: "2026-08-29"
last_verified: "2026-08-29T00:00:00.000Z"
report_version: "1.0"
total_reviews: 0
confidence: "low"
confidence_score: 0.2
data_age_days: 33
momentum_velocity: "zombie"
intelligence_version: 3
tags: ["education", "free", "mobile app", "app review", "app analysis", "students", "individuals", "looking"]
canonical_url: "https://marlvel.ai/apps/angle-master"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# Angle Master Intelligence Report

## TL;DR {#tldr}

- **Category**: Education · Free

> **TL;DR:** Angle Master is a education app by Chelsea Farley, available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** Angle Master is a education app by Chelsea Farley.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Category** | Education |
| **Developer** | Chelsea Farley |
| **Pricing** | Free |
| **Platforms** | iOS |
| **Confidence** | Low (0.2/1.0) |
| **Data Age** | 33d |

## Metadata & Market Performance
- **Publisher:** Chelsea Farley
- **Category:** Education
- **Target Audience:** Students and individuals looking to practice geometry and protractor skills through gamified exercises.
- **Platforms:** iOS
- **Version Reviewed:** 1.0
- **Report Date:** 2026-08-29
- **Signal Count:** 0 reviews analyzed
- **Confidence:** Low (0.2/1.0)
- **App Store ID (iOS):** 1532625767
- **Bundle ID:** com.tripwiretech.anglemaster
- **Performance Trend:** Stable
- **Data Window:** Analysis based on signals collected up to 2026-08-29

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** Angle Master is a geometry-focused educational game for students, featuring angle estimation and reading exercises on iOS.
**Why users hire it:** The app removes the cognitive friction of manual protractor practice by providing instant feedback on angle estimation accuracy.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Standard] Angle Creator:** Interactive game requiring users to stop a rotating line at a specific goal angle.
- **[Standard] Angle Reader:** Guessing game for identifying the angle between two static lines to practice protractor skills.
  * *User Intent:* Users seek enhanced value through premium features.
- **[Standard] Difficulty Scaling:** Four difficulty tiers ranging from 30-degree to 0-degree margin of error.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

Angle Master occupies a niche position in the Education category as a static, free-to-use geometry utility. The absence of updates for over 2150 days suggests a maintenance-only or abandoned status, limiting its competitive standing against active educational platforms.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Free
- **Tiers:** Free
- **Analysis:** Angle Master is distributed as a free utility with no observable in-app purchases or subscription tiers.

<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- Gamified difficulty tiers provide a clear progression path for geometry students.

**Growth Levers:**
- Adding a progress-tracking dashboard could convert the utility into a long-term learning aid.


<!-- /section:swot -->
## Recent Changes (v2 → v3) {#recent-changes}

The product remains in a static, unmaintained state, with the analytical focus shifting from a recommendation to sunset the app toward a requirement for technical auditing to ensure OS compatibility.

**Overall trend**: Stable
**Compared at**: 2026-08-29

### High-impact changes
- **[Shifted] Strategic Outlook Pivot** (positioning)

### Medium-impact changes
- **[Shifted] Threat Profile Update** (swot)

<!-- section:momentum -->
## App Momentum (Zombie) {#momentum}

- No updates since September 2020.
- Maintains static feature set.

> **Cadence:** 1 total versions · 1 majors in last 6 months · 2158 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

Angle Master is an education app that is completely free.

<!-- speakable-start -->
> **Bottom Line:** Angle Master functions as a static educational utility, but its lack of updates since 2020 leaves it vulnerable to modern, cloud-synced competitors. A technical audit is required to ensure the app remains functional on current hardware, which would prevent complete abandonment by the user base.
<!-- speakable-end -->

**Best for:** Students and individuals looking to practice geometry and protractor skills through gamified exercises.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [MAINTAIN] Audit the codebase for compatibility with current OS standards because the app has not been updated in over 2150 days → maintain basic functionality.
<!-- /section:pm-actions -->

<!-- section:outlook -->
### Outlook: Declining

The educational utility market is shifting toward active, cloud-synced platforms that offer personalized progress tracking. Angle Master remains in a static state, which will likely lead to a decline in relevance as users migrate to apps that support modern OS features and cross-device syncing.

- 🔴 The 2150-day update gap indicates a lack of active development, which increases the risk of the app breaking on newer iOS versions.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Total Reviews | 0 |
| Confidence | Low |
| Pricing Model | Free |
| Platforms | iOS |
| Key Features | 3 analyzed |
| Trend | Stable |
| Outlook | Declining |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **Angle Master** (this app) | N/A/5 | N/A | Chelsea Farley |
| [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:** Chelsea Farley
- **Website:** [https://tripwiretech.com/products/AngleMaster](https://tripwiretech.com/products/AngleMaster)
- **Social:** [X/Twitter](https://twitter.com/githubstatus)

## Data Sources & Links
- **App Store:** [View on Apple Store](https://apps.apple.com/us/app/angle-master/id1532625767?uo=4)
- **Dev Site:** [Official Website](https://tripwiretech.com/products/AngleMaster)
- **Sources:** Developer website content, App store metadata.

## 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 Angle Master suitable for beginners?

Yes, Angle Master includes an "Easy" difficulty level with a 30-degree margin of error, making it accessible for those just starting to learn protractor skills.

### Does Angle Master require an internet connection?

Angle Master is a standalone game and does not require an active internet connection to function, as it does not rely on cloud-based features.

### What is the difference between Angle Creator and Angle Reader?

Angle Creator requires you to stop a rotating line at a specific angle, while Angle Reader asks you to estimate the angle between two static lines.

## 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:** 0.2/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 0
- **Data Sources:** 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:** 33 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/angle-master)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.