# calcISO10675 vs NDTScope

The clearest difference is iOS requirement: NDTScope at 10.0 against calcISO10675's 17.0. 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.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | calcISO10675 | NDTScope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Size | 1 MB | 58 MB |
| Requires iOS | 17.0 | **10.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Georg Rose](https://appshunter.io/developer/521567472) | [Praveen Kumar](https://appshunter.io/developer/1569548640) |

## What reviewers say

### calcISO10675

[App page](https://appshunter.io/ios/app/calciso10675/id1472518401)

**Features:** macOS Compatibility

**In-app purchases:** none


### NDTScope

[App page](https://appshunter.io/ios/app/ndtscope/id1569548638)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is calcISO10675 free?

calcISO10675 is free to download, with no in-app purchases.

### Is NDTScope free?

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

### Do calcISO10675 or NDTScope have ads?

Neither calcISO10675 nor NDTScope shows ads.

### Which is updated more often, calcISO10675 or NDTScope?

calcISO10675 ships an update every 5 months, and NDTScope every 5 months. Most recently, calcISO10675 was updated on October 31, 2026 and NDTScope on October 30, 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.*