# MLDB System vs ZAP E

The clearest difference is update cadence: MLDB System at every 9 days against ZAP E's monthly. MLDB System also leads on iOS requirement (12.4 vs 15.1). 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.

MLDB System ships an update every 9 days, ZAP E monthly. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | MLDB System | ZAP E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Size | 29 MB | 39 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ashish Sonkusare](https://appshunter.io/developer/1669068273) | [ZAPGroup Inc.](https://appshunter.io/developer/907381121) |

## What reviewers say

### MLDB System

[App page](https://appshunter.io/ios/app/mldb-system/id6451116800)

**Features:** macOS Compatibility

**In-app purchases:** none


### ZAP E

[App page](https://appshunter.io/ios/app/zap-e-store-merchant/id6739552971)

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

**In-app purchases:** none


## Frequently asked questions

### Is MLDB System free?

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

### Is ZAP E free?

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

### Do MLDB System or ZAP E have ads?

Neither MLDB System nor ZAP E shows ads.

### Which is updated more often, MLDB System or ZAP E?

MLDB System ships an update every 9 days, and ZAP E monthly. Most recently, MLDB System was updated on October 13, 2026 and ZAP E on October 2, 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.*