# Amp Calculator vs Shinchuo Client

The clearest difference is update cadence: Shinchuo Client at fortnightly against Amp Calculator's every 11 months. Amp Calculator's advantage is iOS requirement (11.0 vs 15.1). 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.

Amp Calculator ships an update every 11 months, Shinchuo Client fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | Amp Calculator | Shinchuo Client |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Size | 12 MB | 20 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [iLeaseWorks, LLC](https://appshunter.io/developer/719765837) | [Shinchuo Jp](https://appshunter.io/developer/1863789520) |

## What reviewers say

### Amp Calculator

[App page](https://appshunter.io/ios/app/amp-calculator/id1500809162)

**Features:** macOS Compatibility

**In-app purchases:** none


### Shinchuo Client

[App page](https://appshunter.io/ios/app/shinchuo-client/id6756940188)

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

**In-app purchases:** none


## Frequently asked questions

### Is Amp Calculator free?

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

### Is Shinchuo Client free?

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

### Do Amp Calculator or Shinchuo Client have ads?

Neither Amp Calculator nor Shinchuo Client shows ads.

### Which is updated more often, Amp Calculator or Shinchuo Client?

Amp Calculator ships an update every 11 months, and Shinchuo Client fortnightly. Most recently, Amp Calculator was updated on October 25, 2026 and Shinchuo Client on October 25, 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.*