# DDM Explorer vs NTP Inspector

The clearest difference is update cadence: NTP Inspector at monthly against DDM Explorer's every 2 months. 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.

DDM Explorer ships an update every 2 months, NTP Inspector monthly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DDM Explorer | NTP Inspector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ntp-inspector/id6757625801/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free |
| Size | 7 MB | 3 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPad, Mac | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JAMF Software](https://appshunter.io/developer/290965542) | [Antonios Chariton](https://appshunter.io/developer/1867948901) |

## What reviewers say

### DDM Explorer

[App page](https://appshunter.io/ios/app/ddm-explorer/id6754861743)

**Features:** Vision Pro support

**In-app purchases:** none


### NTP Inspector

[App page](https://appshunter.io/ios/app/ntp-inspector/id6757625801)

This utility app allows you to query NTP servers on the internet and view detailed information from their responses. It helps troubleshoot server issues by providing protocol version, stratum, reference time, and leap second status directly from your device.

**Highlights:** Query NTP servers, View protocol version, Check server stratum, Report reference time, Detect leap seconds, Troubleshoot network issues

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DDM Explorer free?

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

### Is NTP Inspector free?

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

### Do DDM Explorer or NTP Inspector have ads?

Neither DDM Explorer nor NTP Inspector shows ads.

### Which is updated more often, DDM Explorer or NTP Inspector?

DDM Explorer ships an update every 2 months, and NTP Inspector monthly. Most recently, DDM Explorer was updated on October 25, 2026 and NTP Inspector on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*