# Perimeter vs Done Plus

The clearest difference is ads: Perimeter at none against Done Plus's shown. Perimeter also leads on monetization model (free vs ad-supported) and iOS requirement (11.0 vs 15.0). Done Plus's advantage is update cadence (every 3 days vs every 3 weeks) and device support (4 vs 2). On price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 5.0 for Perimeter against 5.0 for Done Plus. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Perimeter ships an update every 3 weeks, Done Plus every 3 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Perimeter | Done Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/perimeter-theft-deterrence/id1572482501/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/done-plus/id1628838124/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | **Free** | Ad-supported |
| Size | 54 MB | 75 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [PERIMETER AI INC.](https://appshunter.io/developer/1572482503) | [Done Developer](https://appshunter.io/developer/1628838336) |

## What reviewers say

### Perimeter

[App page](https://appshunter.io/ios/app/perimeter-theft-deterrence/id1572482501)

This AI-powered security app detects potential threats before they occur. It uses unique lights and sounds to warn individuals and deter crime before it happens.

**Highlights:** AI threat detection, Proactive crime deterrence, Neighbor Safe™ lights, Audible warnings, Driveway monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### Done Plus

[App page](https://appshunter.io/ios/app/done-plus/id1628838124)

A powerful yet lightweight calculator with customizable themes and a relaxing wave effect. Enjoy a visually appealing and fun calculation experience, with full Dark Mode support. An ad-free Pro version is available.

**Highlights:** Full Dark Mode support, Light and colorful themes, Relaxing wave effect, Customizable graphics, Regular updates

**In-app purchases:** none


## Frequently asked questions

### Is Perimeter free?

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

### Is Done Plus free?

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

### Which has better reviews, Perimeter or Done Plus?

Perimeter and Done Plus are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do Perimeter or Done Plus have ads?

Done Plus shows ads; Perimeter does not.

### Which is updated more often, Perimeter or Done Plus?

Perimeter ships an update every 3 weeks, and Done Plus every 3 days. Most recently, Perimeter was updated on November 3, 2026 and Done Plus on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*