# Downtime Terminator vs ClampMeter

The clearest difference is update cadence: Downtime Terminator at every 3 weeks against ClampMeter's every 2 months. ClampMeter's advantage is iOS requirement (9.0 vs 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.

Downtime Terminator ships an update every 3 weeks, ClampMeter every 2 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Downtime Terminator | ClampMeter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 39 MB | 26 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Revitalization Autos](https://appshunter.io/developer/1527744183) | [ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD.](https://appshunter.io/developer/1064839954) |

## What reviewers say

### Downtime Terminator

[App page](https://appshunter.io/ios/app/downtime-terminator/id1527858419)

**Features:** Vision Pro support

**In-app purchases:** none


### ClampMeter

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Downtime Terminator free?

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

### Is ClampMeter free?

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

### Do Downtime Terminator or ClampMeter have ads?

Neither Downtime Terminator nor ClampMeter shows ads.

### Which is updated more often, Downtime Terminator or ClampMeter?

Downtime Terminator ships an update every 3 weeks, and ClampMeter every 2 months. Most recently, Downtime Terminator was updated on November 3, 2026 and ClampMeter on October 27, 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.*