# MLDB System vs HerdLogic

The clearest difference is iOS requirement: MLDB System at 12.4 against HerdLogic's 15.1. 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.

MLDB System ships an update every 9 days, HerdLogic every 2 weeks. The most recent releases landed on September 11, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | MLDB System | HerdLogic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Size | 29 MB | 51 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) | [PRN Digital Ventures LLC](https://appshunter.io/developer/1879965083) |

## What reviewers say

### MLDB System

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

**Features:** macOS Compatibility

**In-app purchases:** none


### HerdLogic

[App page](https://appshunter.io/ios/app/herdlogic/id6779952904)

**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 HerdLogic free?

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

### Do MLDB System or HerdLogic have ads?

Neither MLDB System nor HerdLogic shows ads.

### Which is updated more often, MLDB System or HerdLogic?

MLDB System ships an update every 9 days, and HerdLogic every 2 weeks. Most recently, MLDB System was updated on September 11, 2026 and HerdLogic on September 12, 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.*