# JEMiSys eTools vs D

The clearest difference is update cadence: JEMiSys eTools at fortnightly against D's every 4 months. JEMiSys eTools also leads on iOS requirement (13.0 vs 15.6). 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.

JEMiSys eTools ships an update fortnightly, D every 4 months. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | JEMiSys eTools | D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 54 MB | 40 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Jemisys Software](https://appshunter.io/developer/1454361869) | [SHENZHEN KAYAN ELECTRONICS.,LTD.](https://appshunter.io/developer/1761111650) |

## What reviewers say

### JEMiSys eTools

[App page](https://appshunter.io/ios/app/jemisys-etools/id1521267010)

**In-app purchases:** none


### D

[App page](https://appshunter.io/ios/app/d-link-wi-fi-assist/id6739521309)

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

**In-app purchases:** none


## Frequently asked questions

### Is JEMiSys eTools free?

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

### Is D free?

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

### Do JEMiSys eTools or D have ads?

Neither JEMiSys eTools nor D shows ads.

### Which is updated more often, JEMiSys eTools or D?

JEMiSys eTools ships an update fortnightly, and D every 4 months. Most recently, JEMiSys eTools was updated on November 7, 2026 and D 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.*