# Real vs Triangle Simulator

The clearest difference is in-app purchases: Real at none against Triangle Simulator's 1. Real also leads on iOS requirement (12.0 vs 15.0). Triangle Simulator's advantage is update cadence (every 2 months vs every 11 months) and review sentiment (100% vs 75%). On price, ads and device support there is nothing between them.

Both are free to download. Triangle Simulator sells 1 in-app purchase, starting at $1.99 per month. Real asks for nothing beyond the download.

Real ships an update every 11 months, Triangle Simulator every 2 months. The most recent releases landed on September 11, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Real | Triangle Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 69 MB | 65 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takeru Yui](https://appshunter.io/developer/955414485) | [Toshiya Hondo](https://appshunter.io/developer/1571875732) |

## What reviewers say

### Real

[App page](https://appshunter.io/ios/app/real-time-heron-calculator/id955414486)

Calculate the area of a triangle using Heron's formula with real-time graphical updates. Easily adjust side lengths and view results instantly, making it ideal for on-site construction work. Customize decimal places and rounding methods for precise calculations.

**Highlights:** Heron's formula for triangle area, Real-time graphical updates, Intuitive side length adjustment, Customizable decimal places, Multiple rounding options, Ideal for construction sites

**Features:** macOS Compatibility

**In-app purchases:** none


### Triangle Simulator

[App page](https://appshunter.io/ios/app/triangle-simulator/id1583116107)

Calculate triangle properties like sides, angles, and area instantly. Save and review past calculations with added memos. Supports various input formats and angle units for precise results.

**Highlights:** Calculate triangle sides, angles, and area, View triangle image, Save calculation history, Add memos to calculations, Input sides in square rooted values, Adjust result digit count, Choose angle units

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads (Monthly) | $1.99 | per month |


## Frequently asked questions

### Is Real free?

Real is free to download, with no in-app purchases.

### Is Triangle Simulator free?

Triangle Simulator is free to download, with in-app purchases available.

### Do Real or Triangle Simulator have ads?

Both Real and Triangle Simulator show ads.

### Which is updated more often, Real or Triangle Simulator?

Real ships an update every 11 months, and Triangle Simulator every 2 months. Most recently, Real was updated on September 11, 2026 and Triangle Simulator 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.*