# Triangle3 vs Equal Spacing Calculator

The clearest difference is review sentiment: Equal Spacing Calculator at 100% against Triangle3's 40%. Equal Spacing Calculator also leads on update cadence (every 2 weeks vs every 5 weeks). Triangle3's advantage is price ($3.99 vs $4.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Triangle3 costs $3.99 and Equal Spacing Calculator $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Triangle3 ships an update every 5 weeks, Equal Spacing Calculator every 2 weeks. The most recent releases landed on October 12, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Triangle3 | Equal Spacing Calculator |
| --- | --- | --- |
| Price | **$3.99** | $4.99 |
| Positive reviews | 40.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Size | 7 MB | 3 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ryo sasaki](https://appshunter.io/developer/318552526) | [saito daiki](https://appshunter.io/developer/1858472980) |

## What reviewers say

### Triangle3

[App page](https://appshunter.io/ios/app/triangle3/id1643788233)

This app provides advanced calculation tools for field work, specializing in right and unequal triangles. It supports complex shapes like cones, pipes, and screw wings, with AR visualization for floor plans. It also includes standard calculator functions and memory features.

**Highlights:** Right and unequal triangle calculations, Complex shape development (cones, pipes, etc.), Augmented Reality (AR) floor plan visualization, Standard calculator functions with memory, Trigonometric and cosine theorem calculations, PCD and screw wing calculations

**Features:** Vision Pro support

**In-app purchases:** none


### Equal Spacing Calculator

[App page](https://appshunter.io/ios/app/equal-spacing-calculator/id6756093115)

This tool helps you quickly and accurately calculate the spacing and positions for marks at equal intervals. Input total length, divisions, and margins to get precise measurements, ideal for planning and on-site work.

**Highlights:** Auto-calculate pitch and positions, Calculate using effective length, Choose reference side (Left/Center/Right), Minimal input for accuracy, Instant value tweaking, List of measured positions

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

**In-app purchases:** none


## Frequently asked questions

### Is Triangle3 free?

Triangle3 costs $3.99, with no in-app purchases.

### Is Equal Spacing Calculator free?

Equal Spacing Calculator costs $4.99, with no in-app purchases.

### Do Triangle3 or Equal Spacing Calculator have ads?

Neither Triangle3 nor Equal Spacing Calculator shows ads.

### Which is updated more often, Triangle3 or Equal Spacing Calculator?

Triangle3 ships an update every 5 weeks, and Equal Spacing Calculator every 2 weeks. Most recently, Triangle3 was updated on October 12, 2026 and Equal Spacing Calculator on September 21, 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.*