# KeyPlus3 vs MotionSeer

The clearest difference is in-app purchases: KeyPlus3 at none against MotionSeer's 2. MotionSeer's advantage is update cadence (every 10 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MotionSeer sells 2 in-app purchases, starting at $5.99 per month. KeyPlus3 asks for nothing beyond the download.

KeyPlus3 ships an update every 3 weeks, MotionSeer every 10 days. The most recent releases landed on September 8, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | KeyPlus3 | MotionSeer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/motionseer-security-camera/id6759616027/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 17 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Special One Co., Ltd.](https://appshunter.io/developer/1521605263) | [HARDI SOSNITSKI](https://appshunter.io/developer/1879826721) |

## What reviewers say

### KeyPlus3

[App page](https://appshunter.io/ios/app/keyplus3-digital-key/id6747149011)

**Features:** macOS Compatibility

**In-app purchases:** none


### MotionSeer

[App page](https://appshunter.io/ios/app/motionseer-security-camera/id6759616027)

Transform your iPhone into a private security camera with advanced motion and sound detection. Receive instant alerts and access live video streams securely from anywhere. Local and cloud recording options ensure your footage is always safe.

**Highlights:** Advanced motion and sound detection, Instant alerts and recording, 14 days free local recording, Automatic cloud backup, Secure live streaming, Privacy-focused local storage

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $5.99 | per month |
| Pro | $34.99 | per year |


## Frequently asked questions

### Is KeyPlus3 free?

KeyPlus3 is free to download, with no in-app purchases.

### Is MotionSeer free?

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

### Do KeyPlus3 or MotionSeer have ads?

Neither KeyPlus3 nor MotionSeer shows ads.

### Which is updated more often, KeyPlus3 or MotionSeer?

KeyPlus3 ships an update every 3 weeks, and MotionSeer every 10 days. Most recently, KeyPlus3 was updated on September 8, 2026 and MotionSeer on September 16, 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.*