Comparison

Trgnmtry vs Python Dimensions

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Interactive unit circle
  • Visualize trigonometric measures
  • Customizable angle intervals
  • Supports light and dark mode
  • Geometric relation display
Features
Read full description

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!

About

Python Dimensions

Features
Read full description

"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

Python Dimensions4 screens

Verdict

The call

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

UpkeepUpdate frequency

Trgnmtry ships an update every 21 months, Python Dimensions monthly. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 9 level
Trgnmtry versus Python Dimensions: the parameters behind the verdict, then further details
ParameterTrgnmtryPython Dimensions
Price—Free — better
Rating3.4 (5 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 21 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size5 MB111 MB
Age rating4+4+
DeveloperAndrew McKnightchengche lee

In-app purchases

None

Trgnmtry

No in-app purchases

None

Python Dimensions

No in-app purchases

Questions

Is Trgnmtry free?
Pricing for Trgnmtry is not currently listed on the App Store.
Is Python Dimensions free?
Python Dimensions is free to download, with no in-app purchases.
Do Trgnmtry or Python Dimensions have ads?
Neither Trgnmtry nor Python Dimensions shows ads.
Which is updated more often, Trgnmtry or Python Dimensions?
Trgnmtry ships an update every 21 months, and Python Dimensions monthly. Most recently, Trgnmtry was updated on October 24, 2026 and Python Dimensions on October 10, 2026.

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