# Measure Angles vs Tri

The clearest difference is review sentiment: Tri at 100% against Measure Angles's 47%. Tri also leads on rating (5.0 vs 4.2) and in-app purchases (none vs 10). Measure Angles's advantage is update cadence (fortnightly vs every 12 months) and ratings volume (2K vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Measure Angles sells 10 in-app purchases, starting at $2.99 per 7 days. Tri asks for nothing beyond the download.

Tri holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Measure Angles has 2K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 47% of Measure Angles's written reviews are positive against 100% of Tri's.

Measure Angles ships an update fortnightly, Tri every 12 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Measure Angles | Tri |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (2K ratings)](https://appshunter.io/ios/app/measure-angles-bubble-level/id458980311/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tri-func/id496807268/reviews)** |
| Number of ratings | **2K** | 1 |
| Positive reviews | 47.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 12 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 46 MB | 4 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WHATSTICKER APPS SRL](https://appshunter.io/developer/1784779333) | [Thirdware.jp](https://appshunter.io/developer/464228680) |

## What reviewers say

### Measure Angles

[App page](https://appshunter.io/ios/app/measure-angles-bubble-level/id458980311)

This app transforms your device into a versatile measuring tool. It offers precise angle readings with a digital protractor and bubble level, along with AR-powered distance and volume measurements. Ideal for professionals, DIY enthusiasts, and everyday tasks requiring accuracy.

**Highlights:** Digital protractor for angle measurement, Bubble level for surface flatness, AR-powered distance and volume estimation, Integrated ruler and tape measure, Compass and altimeter, Timer and audio meter

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Weekly Premium | $2.99 | per 7 days |
| Weekly premium | $4.99 | per 7 days |
| Weekly premium trial | $4.99 | per 7 days |
| Yearly premium trial | $29.99 | per year |
| Yearly premium | $29.99 | per year |
| Unlock all tools | $1.99 | one-time |
| No ads | $2.99 | one-time |
| Premium Discount | $2.99 | one-time |
| Premium Edition | $3.99 | one-time |

**What reviewers like**

- 🚀 Accurate
- 👍 Easy to use
- 👍 Versatile
- 👍 Useful tool
- 👍 Well-designed

**What reviewers complain about**

- 🐛 Connectivity issues
- 💰 Requires payment
- 🔍 Difficult to exit/close
- 📺 Intrusive ads
- 🔒 Tracking concerns

**Reported bugs**

- Angle appears reversed or flipped
- Angle locks too quickly
- App crashes on launch
- Measurements are inaccurate

**Requested features**

- Panoramic measurement tool
- Surround audio setup feature
- Ability to reset protractor to 0 degrees
- Black/white display for better readability
- Support for iPad split-screen


### 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


## Frequently asked questions

### Is Measure Angles free?

Measure Angles is free to download, with in-app purchases available.

### Is Tri free?

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

### Which has better reviews, Measure Angles or Tri?

Tri is rated higher. Measure Angles averages 4.2 out of 5 from 2K ratings, while Tri averages 5.0 from 1 ratings.

### Do Measure Angles or Tri have ads?

Both Measure Angles and Tri show ads.

### Which is updated more often, Measure Angles or Tri?

Measure Angles ships an update fortnightly, and Tri every 12 months. Most recently, Measure Angles was updated on October 13, 2026 and Tri on October 3, 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.*