# Tri vs Color Scheme Designer

The clearest difference is price: Tri at Free against Color Scheme Designer's $1.99. Color Scheme Designer's advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

Tri is free to download; Color Scheme Designer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tri ships an update every 12 months, Color Scheme Designer every 23 months. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Tri | Color Scheme Designer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tri-func/id496807268/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 12 months** | Every 23 months |
| Monetization | Ad-supported | — |
| Size | 4 MB | 1 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Thirdware.jp](https://appshunter.io/developer/464228680) | [Kei Suefuji](https://appshunter.io/developer/1388335881) |

## What reviewers say

### Tri

[App page](https://appshunter.io/ios/app/tri-func/id496807268)

This utility app provides the formula and value for calculating triangle properties. It's designed for quick access to mathematical formulas related to triangles.

**Highlights:** Triangle formula display, Value calculation, Quick access utility, Mathematical formulas

**Features:** Vision Pro support

**In-app purchases:** none


### Color Scheme Designer

[App page](https://appshunter.io/ios/app/color-scheme-designer/id1435485163)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tri free?

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

### Is Color Scheme Designer free?

Color Scheme Designer costs $1.99, with no in-app purchases.

### Do Tri or Color Scheme Designer have ads?

Tri shows ads; Color Scheme Designer does not.

### Which is updated more often, Tri or Color Scheme Designer?

Tri ships an update every 12 months, and Color Scheme Designer every 23 months. Most recently, Tri was updated on October 20, 2026 and Color Scheme Designer on October 12, 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.*