# calcDS vs NTP Inspector

The clearest difference is price: NTP Inspector at Free against calcDS's $1.99. calcDS's advantage is iOS requirement (14.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

NTP Inspector is free to download; calcDS costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | calcDS | NTP Inspector |
| --- | --- | --- |
| Price | $1.99 | **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 | — | Monthly |
| Monetization | — | Free |
| Size | 3 MB | 3 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [R.David Sisemore](https://appshunter.io/developer/990115240) | [Antonios Chariton](https://appshunter.io/developer/1867948901) |

## What reviewers say

### calcDS

[App page](https://appshunter.io/ios/app/calcds/id6470944516)

**Features:** macOS Compatibility

**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 calcDS free?

calcDS costs $1.99, with no in-app purchases.

### Is NTP Inspector free?

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

### Do calcDS or NTP Inspector have ads?

Neither calcDS nor NTP Inspector shows ads.

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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.*