# ClampMeter vs Roulette Pay

The clearest difference is update cadence: Roulette Pay at every 3 days against ClampMeter's every 2 months. ClampMeter's advantage is iOS requirement (9.0 vs 13.6). 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.

ClampMeter ships an update every 2 months, Roulette Pay every 3 days. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | ClampMeter | Roulette Pay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 26 MB | 22 MB |
| Requires iOS | **9.0** | 13.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD.](https://appshunter.io/developer/1064839954) | [Brian James Levis](https://appshunter.io/developer/1735154681) |

## What reviewers say

### ClampMeter

[App page](https://appshunter.io/ios/app/clampmeter/id6448405311)

**Features:** macOS Compatibility

**In-app purchases:** none


### Roulette Pay

[App page](https://appshunter.io/ios/app/roulette-pay/id6479205490)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ClampMeter free?

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

### Is Roulette Pay free?

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

### Do ClampMeter or Roulette Pay have ads?

Neither ClampMeter nor Roulette Pay shows ads.

### Which is updated more often, ClampMeter or Roulette Pay?

ClampMeter ships an update every 2 months, and Roulette Pay every 3 days. Most recently, ClampMeter was updated on September 20, 2026 and Roulette Pay on September 22, 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.*