# ワイヤレスCO2モニター vs A&D WeiV

The clearest difference is update cadence: A&D WeiV at every 5 months against ワイヤレスCO2モニター's every 11 months. ワイヤレスCO2モニター's advantage is iOS requirement (8.0 vs 14.0). 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.

ワイヤレスCO2モニター ships an update every 11 months, A&D WeiV every 5 months. The most recent releases landed on September 10, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | ワイヤレスCO2モニター | A&D WeiV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/a-and-d-weiv/id6443930190/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 months** |
| Monetization | — | Free |
| Size | 4 MB | 1 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Step One Limited](https://appshunter.io/developer/646296997) | [A&D Company, Limited](https://appshunter.io/developer/894522769) |

## What reviewers say

### ワイヤレスCO2モニター

[App page](https://appshunter.io/ios/app/co2/id1162038614)

**Features:** macOS Compatibility

**In-app purchases:** none


### A&D WeiV

[App page](https://appshunter.io/ios/app/a-and-d-weiv/id6443930190)

Connects electronic scales to your smartphone or tablet via Bluetooth. Control your weighing instrument and store measurement data wirelessly. Add details like date and number to your readings.

**Highlights:** Wireless Bluetooth connection, Control weighing instruments, Receive and store weighing data, Add date/time/number to data, Send commands to scale, Repeat command function

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ワイヤレスCO2モニター free?

ワイヤレスCO2モニター is free to download, with no in-app purchases.

### Is A&D WeiV free?

A&D WeiV is free to download, with no in-app purchases.

### Do ワイヤレスCO2モニター or A&D WeiV have ads?

Neither ワイヤレスCO2モニター nor A&D WeiV shows ads.

### Which is updated more often, ワイヤレスCO2モニター or A&D WeiV?

ワイヤレスCO2モニター ships an update every 11 months, and A&D WeiV every 5 months. Most recently, ワイヤレスCO2モニター was updated on September 10, 2026 and A&D WeiV on June 1, 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.*