# Pocket Seismograph vs ChipSense CNC

The clearest difference is iOS requirement: Pocket Seismograph at 13.0 against ChipSense CNC's 17.0. 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.

## The numbers

| Metric | Pocket Seismograph | ChipSense CNC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 23 MB | 1 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [lapnito.cz s.r.o.](https://appshunter.io/developer/1577358577) | [The Giving Stump, llc](https://appshunter.io/developer/1895382317) |

## What reviewers say

### Pocket Seismograph

[App page](https://appshunter.io/ios/app/pocket-seismograph-vibration/id6766446046)

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

**In-app purchases:** none


### ChipSense CNC

[App page](https://appshunter.io/ios/app/chipsense-cnc/id6795931265)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pocket Seismograph free?

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

### Is ChipSense CNC free?

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

### Do Pocket Seismograph or ChipSense CNC have ads?

Neither Pocket Seismograph nor ChipSense CNC 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.*