Triangle Help vs my59
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Triangle Help
This utility app calculates missing sides and angles of a triangle given at least three known measures. It displays the formulas used for learning and supports angle input in degrees or radians, with adjustable decimal precision.
- Solves for missing triangle sides and angles
- Displays formulas used for learning
- Accepts angles in degrees or radians
- Adjustable decimal precision
- Large text display
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Triangle Solver! FEATURES INCLUDE - Presents the formulae it uses - Accepts angles in degrees OR radians - Reports answers to many decimal places - BIG TEXT To toggle between degrees and radians simply tap the blue angle unit symbol. Given three measures of sides or angles of a triangle (including at least one side) this app can find and report the rest. This app "solves" triangles. This app's most special feature is that it reports the formulae it uses so you can learn how to solve triangles yourself. The number of decimal places is determined by the width of your screen. If it's too few, turn your device horizontal! Each side is across from the angle of the same letter. Sides are lowercase, angles are uppercase and denoted with the angle symbol (∠). This app may be good for engineers or Trigonometry students.
my59
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Experience the power and authenticity of a classic programmable calculator from the late 1970s directly on your iPhone, iPad, and Mac. my59 is not just a calculator app; it is a faithful, highly accurate emulator that brings a piece of computing history into the modern era. Whether you are an engineer, a student, a retro-computing enthusiast, or simply someone who appreciates the raw power of vintage programmable calculators, my59 delivers an authentic, uncompromised experience enhanced with the latest Apple ecosystem features. KEY FEATURES: Authentic Design & Feel: A meticulously crafted interface inspired by classic programmable calculators of the era, complete with a faithful keypad layout and display. Full Emulation: Supports the complete original instruction set, memory registers, and programming logic. Write and execute programs just as you would on the original hardware. Modern Workspace: Fully optimized for all screen sizes, including seamless portrait and landscape modes on iPad, and native support for Apple Silicon Macs. Built-in Documentation: Never get stuck. Full documentation, manuals, and quick references are integrated directly into the app for easy access. UNLOCK FULL POWER (Premium): my59 is free to download and try. Upgrading to Premium (available as a flexible subscription or a lifetime one-time purchase) unlocks the ultimate workstation: Complete Module Library: Get unrestricted access to all expansion packs and library modules. iCloud Sync: Keep your programs, memory state, and modules seamlessly synchronized across your iPhone, iPad, and Mac. Advanced Saving & Sharing: Save an unlimited number of custom programs and easily share them with other users. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ This app is an independent project and is not affiliated with, endorsed by, or connected to Texas Instruments Inc. or any of its subsidiaries.
Screenshots
Verdict
The clearest difference is in-app purchases: Triangle Help at none against my59's 3. Triangle Help also leads on iOS requirement (9.3 vs 26.0). On price, ads and device support 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
Both are free to download. my59 sells 3 in-app purchases, starting at $0.99 per month. Triangle Help asks for nothing beyond the download.
| Parameter | Triangle Help | my59 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 9.3 — better | 26.0 |
| Further details — not scored | ||
| Size | 10 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Robert Winkelman | Miroslav Perovic |
In-app purchases
Triangle Help
No in-app purchases
my59
- Monthly$0.991 Month
- Yearly$9.991 Year
- Unlock Full App$19.99









