# Trig Instruments Toolbox vs Bubble Level & Compass

The clearest difference is review sentiment: Bubble Level & Compass at 100% against Trig Instruments Toolbox's 50%. Bubble Level & Compass also leads on rating (4.9 vs 2.6) and update cadence (every 11 months vs every 27 months). Trig Instruments Toolbox's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Bubble Level & Compass sells 1 one-off in-app purchase. Trig Instruments Toolbox asks for nothing beyond the download.

Bubble Level & Compass holds the better App Store score, 4.9 against 2.6. Both are backed by a comparable volume of ratings — 5 and 15 respectively. Written reviews point the same way: 50% of Trig Instruments Toolbox's written reviews are positive against 100% of Bubble Level & Compass's.

Trig Instruments Toolbox ships an update every 27 months, Bubble Level & Compass every 11 months. The most recent releases landed on September 28, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | Trig Instruments Toolbox | Bubble Level & Compass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (5 ratings)](https://appshunter.io/ios/app/trig-instruments-toolbox/id1467103926/reviews) | **[4.9 (15 ratings)](https://appshunter.io/ios/app/bubble-level-and-compass/id1665482229/reviews)** |
| Number of ratings | 5 | **15** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 27 months | **Every 11 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 54 MB | 7 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stevens Marketing Limited](https://appshunter.io/developer/1467103925) | [Tevfik Yucek](https://appshunter.io/developer/566982862) |

## What reviewers say

### Trig Instruments Toolbox

[App page](https://appshunter.io/ios/app/trig-instruments-toolbox/id1467103926)

This utility app provides a collection of essential field tools, including a ratio to angle converter, inclinometer, tally counter, and protractor. It leverages your device's sensors for accurate estimations and calculations, reducing the need to carry multiple physical instruments.

**Highlights:** Ratio to Angle converter, Inclinometer, Tally counter, Protractor, Uses device sensors for accuracy, New free tools added regularly

**Features:** macOS Compatibility

**In-app purchases:** none


### Bubble Level & Compass

[App page](https://appshunter.io/ios/app/bubble-level-and-compass/id1665482229)

This utility app helps you measure angles, tilt, and slope using your device's sensors. It features a compass, surface level, and camera level for various measurement needs. Large buttons and a flashlight enhance usability in different lighting conditions.

**Highlights:** Angle measurement, Tilt detection, Slope calculation, Accurate compass, Surface level, Camera level, Flashlight functionality

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisements | $3.99 | one-time |


## Frequently asked questions

### Is Trig Instruments Toolbox free?

Trig Instruments Toolbox is free to download, with no in-app purchases.

### Is Bubble Level & Compass free?

Bubble Level & Compass is free to download, with in-app purchases available.

### Which has better reviews, Trig Instruments Toolbox or Bubble Level & Compass?

Bubble Level & Compass is rated higher. Trig Instruments Toolbox averages 2.6 out of 5 from 5 ratings, while Bubble Level & Compass averages 4.9 from 15 ratings.

### Do Trig Instruments Toolbox or Bubble Level & Compass have ads?

Bubble Level & Compass shows ads; Trig Instruments Toolbox does not.

### Which is updated more often, Trig Instruments Toolbox or Bubble Level & Compass?

Trig Instruments Toolbox ships an update every 27 months, and Bubble Level & Compass every 11 months. Most recently, Trig Instruments Toolbox was updated on September 28, 2026 and Bubble Level & Compass on August 27, 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.*