# SIMPLE DVR vs 3D Ka

The clearest difference is update cadence: 3D Ka at monthly against SIMPLE DVR's every 4 months. SIMPLE DVR's advantage is iOS requirement (9.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SIMPLE DVR ships an update every 4 months, 3D Ka monthly. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SIMPLE DVR | 3D Ka |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Size | 29 MB | 5 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Xiaozhen Technology Co.,Ltd.](https://appshunter.io/developer/1580274508) | [Shenzhen 3DVSTAR Display Technology Co., Ltd.](https://appshunter.io/developer/1442423873) |

## What reviewers say

### SIMPLE DVR

[App page](https://appshunter.io/ios/app/simple-dvr/id1580358857)

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

**In-app purchases:** none


### 3D Ka

[App page](https://appshunter.io/ios/app/3d-ka/id6469479920)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SIMPLE DVR free?

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

### Is 3D Ka free?

3D Ka is free to download, with no in-app purchases.

### Do SIMPLE DVR or 3D Ka have ads?

Neither SIMPLE DVR nor 3D Ka shows ads.

### Which is updated more often, SIMPLE DVR or 3D Ka?

SIMPLE DVR ships an update every 4 months, and 3D Ka monthly. Most recently, SIMPLE DVR was updated on October 2, 2026 and 3D Ka on October 9, 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.*