# PP+ Newton's 2nd Law vs Triangle Calculator Plus

The clearest difference is price: PP+ Newton's 2nd Law at Free against Triangle Calculator Plus's $3.99. PP+ Newton's 2nd Law also leads on update cadence (every 3 months vs every 23 months). Triangle Calculator Plus's advantage is rating (5.0 vs 2.5). On ratings volume, ads, in-app purchases and device support there is nothing between them.

PP+ Newton's 2nd Law is free to download; Triangle Calculator Plus costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Triangle Calculator Plus holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

PP+ Newton's 2nd Law ships an update every 3 months, Triangle Calculator Plus every 23 months. The most recent releases landed on June 8, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | PP+ Newton's 2nd Law | Triangle Calculator Plus |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/pp-plus-newtons-2nd-law/id599162351/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/triangle-calculator-plus/id1623980558/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 23 months |
| Monetization | **Free** | Paid |
| Size | 116 MB | 1 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Polyhedron Learning Media, Inc.](https://appshunter.io/developer/458882328) | [Heng Jia Liang](https://appshunter.io/developer/1532000635) |

## What reviewers say

### PP+ Newton's 2nd Law

[App page](https://appshunter.io/ios/app/pp-plus-newtons-2nd-law/id599162351)

This app simulates a physics lab to explore Newton's Second Law, allowing students to collect and analyze realistic experimental data. It includes introductory videos, background theory, and reporting tools for a comprehensive learning experience.

**Highlights:** 3D physics simulation, Realistic data with errors, Introductory videos, Background theory, Experimental procedure, Analysis and reporting tools, Pre-lab and post-lab quizzes

**Features:** macOS Compatibility

**In-app purchases:** none


### Triangle Calculator Plus

[App page](https://appshunter.io/ios/app/triangle-calculator-plus/id1623980558)

This app instantly solves any triangle problem with multiple solver modes and live visualization. It provides complete triangle properties, step-by-step solutions, and supports various units. Ideal for students, engineers, and professionals needing quick, accurate triangle calculations.

**Highlights:** Multiple solver modes (SSS, SAS, ASA, AAS, SSA, Right Triangle), Live triangle visualization with real-time updates, Complete triangle properties (area, perimeter, circumradius, inradius), Step-by-step solution breakdown, Unit support for various measurements, Tap to copy results

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PP+ Newton's 2nd Law free?

PP+ Newton's 2nd Law is free to download, with no in-app purchases.

### Is Triangle Calculator Plus free?

Triangle Calculator Plus costs $3.99, with no in-app purchases.

### Which has better reviews, PP+ Newton's 2nd Law or Triangle Calculator Plus?

Triangle Calculator Plus is rated higher. PP+ Newton's 2nd Law averages 2.5 out of 5 from 2 ratings, while Triangle Calculator Plus averages 5.0 from 1 ratings.

### Do PP+ Newton's 2nd Law or Triangle Calculator Plus have ads?

Neither PP+ Newton's 2nd Law nor Triangle Calculator Plus shows ads.

### Which is updated more often, PP+ Newton's 2nd Law or Triangle Calculator Plus?

PP+ Newton's 2nd Law ships an update every 3 months, and Triangle Calculator Plus every 23 months. Most recently, PP+ Newton's 2nd Law was updated on June 8, 2026 and Triangle Calculator Plus on September 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*