# Draw2Measure Protractor vs TD CoPilot

The clearest difference is rating: TD CoPilot at 3.7 against Draw2Measure Protractor's 3.0. TD CoPilot also leads on update cadence (every 2 months vs every 20 months). Draw2Measure Protractor's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TD CoPilot holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

Draw2Measure Protractor ships an update every 20 months, TD CoPilot every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Draw2Measure Protractor | TD CoPilot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/draw2measure-protractor/id1097557700/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/td-copilot/id1553068329/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 1 MB | 57 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [American Printing House for the Blind (APH)](https://appshunter.io/developer/704570515) | [Tobii Dynavox LLC](https://appshunter.io/developer/446210474) |

## What reviewers say

### Draw2Measure Protractor

[App page](https://appshunter.io/ios/app/draw2measure-protractor/id1097557700)

This app offers two methods for measuring angles: tracing them on screen or using the device's gyroscope. It provides an accessible alternative to traditional protractors for all students, including those with visual impairments.

**Highlights:** Measure angles by tracing on screen, Measure angles using device gyroscope, Accessible for visually impaired students, Reports measurements in degrees and radians, Includes instructions and demo video

**In-app purchases:** none


### TD CoPilot

[App page](https://appshunter.io/ios/app/td-copilot/id1553068329)

This app calibrates eye tracking devices for optimal performance and user experience. It also provides access to device settings, firmware updates, and battery status information.

**Highlights:** Eye tracker calibration, Device settings customization, Firmware update tracking, Application version display, Battery status verification

**In-app purchases:** none


## Frequently asked questions

### Is Draw2Measure Protractor free?

Draw2Measure Protractor is free to download, with no in-app purchases.

### Is TD CoPilot free?

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

### Which has better reviews, Draw2Measure Protractor or TD CoPilot?

TD CoPilot is rated higher. Draw2Measure Protractor averages 3.0 out of 5 from 4 ratings, while TD CoPilot averages 3.7 from 3 ratings.

### Do Draw2Measure Protractor or TD CoPilot have ads?

Neither Draw2Measure Protractor nor TD CoPilot shows ads.

### Which is updated more often, Draw2Measure Protractor or TD CoPilot?

Draw2Measure Protractor ships an update every 20 months, and TD CoPilot every 2 months. Most recently, Draw2Measure Protractor was updated on November 2, 2026 and TD CoPilot on November 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.*