# 单位&汇率换算 vs Electronics & Spy Cam Detector

The clearest difference is review sentiment: Electronics & Spy Cam Detector at 44% against 单位&汇率换算's 0%. Electronics & Spy Cam Detector also leads on update cadence (every 3 weeks vs every 3 months). 单位&汇率换算's advantage is price ($1.99 vs $4.99) and iOS requirement (11.0 vs 17.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

单位&汇率换算 costs $1.99 and Electronics & Spy Cam Detector $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

单位&汇率换算 ships an update every 3 months, Electronics & Spy Cam Detector every 3 weeks. The most recent releases landed on October 18, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 单位&汇率换算 | Electronics & Spy Cam Detector |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/and/id513618181/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **44.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 8 MB | 2 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Xin Zhou](https://appshunter.io/developer/505384440) | [Prismatic Studio Pte. Ltd.](https://appshunter.io/developer/1340269275) |

## What reviewers say

### 单位&汇率换算

[App page](https://appshunter.io/ios/app/and/id513618181)

This app offers comprehensive unit conversion for area, weight, volume, temperature, length, speed, pressure, fuel consumption, power, energy, torque, and angles. It also includes currency exchange for 46 countries and a calculator with tax computation and data transfer between functions.

**Highlights:** Extensive unit conversions (area, weight, volume, etc.), Currency exchange for 46 countries, Integrated calculator with tax function, Data transfer between converter and calculator, Unit search functionality, Supports various mathematical operations

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

**In-app purchases:** none


### Electronics & Spy Cam Detector

[App page](https://appshunter.io/ios/app/electronics-and-spy-cam-detector/id1340269276)

Scan your surroundings for hidden electronic devices and spy camera lenses using your iPhone's sensors and camera. This tool helps enhance your privacy in unfamiliar places by detecting unusual signals and reflective lenses.

**Highlights:** Dual detection modes (electronics & camera lens), Real-time sensor scanning, Camera lens reflection highlighting, Adjustable sensitivity, Optional sound/vibration alerts, Simple, guidance-based interface

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

**In-app purchases:** none


## Frequently asked questions

### Is 单位&汇率换算 free?

单位&汇率换算 costs $1.99, with no in-app purchases.

### Is Electronics & Spy Cam Detector free?

Electronics & Spy Cam Detector costs $4.99, with no in-app purchases.

### Do 单位&汇率换算 or Electronics & Spy Cam Detector have ads?

Neither 单位&汇率换算 nor Electronics & Spy Cam Detector shows ads.

### Which is updated more often, 单位&汇率换算 or Electronics & Spy Cam Detector?

单位&汇率换算 ships an update every 3 months, and Electronics & Spy Cam Detector every 3 weeks. Most recently, 单位&汇率换算 was updated on October 18, 2026 and Electronics & Spy Cam Detector on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*