# HT SMART vs ClampMeter

The clearest difference is update cadence: HT SMART at every 3 weeks against ClampMeter's every 2 months. HT SMART also leads on iOS requirement (7.0 vs 9.0). 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.

HT SMART ships an update every 3 weeks, ClampMeter every 2 months. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | HT SMART | ClampMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ht-smart/id1253282268/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 44 MB | 26 MB |
| Requires iOS | **7.0** | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ShanTou City Vison Electronictechnology Co., Ltd.](https://appshunter.io/developer/1388222999) | [ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD.](https://appshunter.io/developer/1064839954) |

## What reviewers say

### HT SMART

[App page](https://appshunter.io/ios/app/ht-smart/id1253282268)

Control a toy quadrocopter in real-time using your device. Stream live video directly from the drone to your screen. Compatible with a range of iOS devices.

**Highlights:** Quadrocopter control via WiFi, Real-time video transfer, Live video streaming, iOS device compatibility

**Features:** macOS Compatibility

**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 HT SMART free?

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

### Is ClampMeter free?

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

### Do HT SMART or ClampMeter have ads?

Neither HT SMART nor ClampMeter shows ads.

### Which is updated more often, HT SMART or ClampMeter?

HT SMART ships an update every 3 weeks, and ClampMeter every 2 months. Most recently, HT SMART was updated on September 28, 2026 and ClampMeter on October 7, 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.*