# Proof Plus vs Krystallo

The clearest difference is device support: Proof Plus at 2 against Krystallo's —. Krystallo's advantage is iOS requirement (11.0 vs 13.4). On price 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.

## The numbers

| Metric | Proof Plus | Krystallo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (6 ratings)](https://appshunter.io/ios/app/proof-plus/id1473130667/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 61 MB | 39 MB |
| Requires iOS | 13.4 | **11.0** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [L.D Israel Auto Equipment LTD](https://appshunter.io/developer/1084438401) | [Zaher Andraus](https://appshunter.io/developer/1633461946) |

## What reviewers say

### Proof Plus

[App page](https://appshunter.io/ios/app/proof-plus/id1473130667)

This app provides advanced vehicle security with a full HD car camera system. It offers features like night vision, incident detection, and remote viewing via a smartphone app, ensuring peace of mind while driving or parked.

**Highlights:** Full HD 1080P recording, Night vision, Incident detection, Remote viewing via app, GPS tracking, Vibration and over-speed alarms

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

**In-app purchases:** none


### Krystallo

[App page](https://appshunter.io/ios/app/krystallo/id6453758550)

**In-app purchases:** none


## Frequently asked questions

### Is Proof Plus free?

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

### Is Krystallo free?

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

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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.*