# DEM vs JSDE

The clearest difference is iOS requirement: DEM at 14.0 against JSDE's 17.0. On price, update cadence, ads 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.

DEM ships an update every 3 months, JSDE every 2 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | DEM | JSDE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 1 MB | 14 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Data JAR Ltd](https://appshunter.io/developer/1363593132) | [JAMF Software](https://appshunter.io/developer/290965542) |

## What reviewers say

### DEM

[App page](https://appshunter.io/ios/app/dem/id1458983220)

**Features:** Vision Pro support

**In-app purchases:** none


### JSDE

[App page](https://appshunter.io/ios/app/jsde/id6499516026)

**In-app purchases:** none


## Frequently asked questions

### Is DEM free?

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

### Is JSDE free?

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

### Do DEM or JSDE have ads?

Neither DEM nor JSDE shows ads.

### Which is updated more often, DEM or JSDE?

DEM ships an update every 3 months, and JSDE every 2 months. Most recently, DEM was updated on November 6, 2026 and JSDE on November 4, 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.*