Trgnmtry vs Python Dimensions
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trgnmtry
Explore trigonometric relationships visually by interacting with a unit circle. Customize displayed measures and angle intervals for a dynamic learning experience. Adapts beautifully to both light and dark modes.
- Interactive unit circle
- Visualize trigonometric measures
- Customizable angle intervals
- Supports light and dark mode
- Geometric relation display
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Watch as all of the trigonometric measures are drawn in their geometric relations as you drag your finger around the unit circle. You can choose which measures to see, and set specific angle intervals that can be shown. Looks beautiful in iOS Light or Dark mode!
Python Dimensions
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"Points are vocabulary. Lines are syntax. Planes are logic. Construct your coding literacy in three dimensions." Whether you are a liberal arts student starting from scratch, a university student preparing for TQC+, or a CS major aiming for CPE, Python Dimensions helps you build a solid programming foundation through systematic practice and strong privacy protection. Designed with a unique "Japanese Stationery" aesthetic, this app combines the warmth of traditional paper-and-ink design with cutting-edge On-Device AI and a built-in Python Compiler, allowing you to immerse yourself in coding anytime, anywhere; your code stays on the device. 【1.3 Update — Bigger Question Bank & More】 • Expanded question bank — 120+ new questions, totaling 400+ curated items across PCEP, TQC+, and CPE. • Onboarding flow — A welcome flow and learning-preference picker. Beginners can get started in seconds. • Accessibility sweep — Full 44pt tap targets, aligned with Apple HIG accessibility guidelines. • Python coder keyboard — A handy standalone keyboard for typing Python symbols (indent, quotes, operators) in any app. 【1.2 New — iPad Three-Column Playground】 • Three-Column Playground — Sidebar instantly switches between Templates / Cheatsheet / History; editor top-right, output bottom-right. Built for large screens. • Full Keyboard Shortcuts — ⌘N new, ⌘R run, ⌘S save to history, ⌘E export .py, ⌘L clear output, ⌘K open snippets. Pair with a physical keyboard for max productivity. • Smart History — Every successful run auto-saves to a 20-entry LRU history; no more Cmd+Z hunting. • Native iPad Support — Optimised for portrait and landscape, also great on Apple Silicon Mac. 【Key Features】 3-Dimensional Training: Master Python Step-by-Step Point (MCQ): Master fundamentals and vocabulary through multiple-choice questions. Line (Cloze): Strengthen syntax structure by filling in key code segments. Plane (Parsons): Train algorithmic logic by rearranging code blocks. Your Personal On-Device AI Tutor Powered by advanced Local LLMs and RAG technology. The AI analyzes your mistakes to provide personalized hints and detailed explanations, guiding you to the solution without privacy risks. Private by Default: Your AI chats, code, and learning data stay on your device. None of your content is ever sent to the cloud. Portable Python Playground Write and run code instantly with the built-in Python 3.13 runtime. Includes 10 practical code templates and AI-powered code generation to bridge the gap between theory and practice. Smart Review & Analytics Dashboard Automatically tracks incorrect answers and visualizes weaknesses using Radar Charts and Knowledge Heatmaps across 8 dimensions. Tailored for Certification Exams Over 400 curated questions covering PCEP, TQC+, and CPE certifications. Boost exam prep with "Concept Cards" and a "Keyword Dictionary". 【Support & Customization】 Adaptive Difficulty: Switch between "Easy Mode" and "Normal Mode" to match your learning pace. AI Model Manager: Choose from a range of on-device AI models, including Vision-Language Models for image analysis, optimized for your device. ----- cross-promo (auto-generated; do not edit) ----- More from the developer: English N+1 · Kana Juku · Auditory Companion · Gantt Planet — Search «ChengChe Lee» on the App Store.
Screenshots
Verdict
The clearest difference is update cadence: Python Dimensions at monthly against Trgnmtry's every 21 months. On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Trgnmtry ships an update every 21 months, Python Dimensions monthly. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.
| Parameter | Trgnmtry | Python Dimensions |
|---|---|---|
| Price | — | Free — better |
| Rating | 3.4 (5 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 21 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 111 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew McKnight | chengche lee |
In-app purchases
Trgnmtry
No in-app purchases
Python Dimensions
No in-app purchases
Questions
Is Trgnmtry free?
Is Python Dimensions free?
Do Trgnmtry or Python Dimensions have ads?
Which is updated more often, Trgnmtry or Python Dimensions?
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