# Know My IP vs Digital Protractor & Level

The clearest difference is price: Digital Protractor & Level at Free against Know My IP's $1.99. Digital Protractor & Level also leads on update cadence (every 9 days vs every 6 months). Know My IP's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On ads and iOS requirement there is nothing between them.

Digital Protractor & Level is free to download; Know My IP costs $1.99 up front. Digital Protractor & Level sells 1 one-off in-app purchase. Know My IP asks for nothing beyond the download.

Know My IP ships an update every 6 months, Digital Protractor & Level every 9 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Know My IP | Digital Protractor & Level |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Size | 18 MB | 3 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | **iPhone, iPad, Apple TV** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Reignsol](https://appshunter.io/developer/1631240754) | [Robert Carpenter](https://appshunter.io/developer/6792301217) |

## What reviewers say

### Know My IP

[App page](https://appshunter.io/ios/app/know-my-ip/id6645736200)

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

**In-app purchases:** none


### Digital Protractor & Level

[App page](https://appshunter.io/ios/app/digital-protractor-and-level/id6795648874)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $1.99 | one-time |


## Frequently asked questions

### Is Know My IP free?

Know My IP costs $1.99, with no in-app purchases.

### Is Digital Protractor & Level free?

Digital Protractor & Level is free to download, with in-app purchases available.

### Do Know My IP or Digital Protractor & Level have ads?

Neither Know My IP nor Digital Protractor & Level shows ads.

### Which is updated more often, Know My IP or Digital Protractor & Level?

Know My IP ships an update every 6 months, and Digital Protractor & Level every 9 days. Most recently, Know My IP was updated on October 22, 2026 and Digital Protractor & Level on October 24, 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.*