# インフルエンザ警戒計 vs BaroNote

The clearest difference is ads: BaroNote at none against インフルエンザ警戒計's shown. BaroNote also leads on update cadence (every 2 months vs every 5 months). インフルエンザ警戒計's advantage is iOS requirement (15.6 vs 17.0). On price, 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.

インフルエンザ警戒計 ships an update every 5 months, BaroNote every 2 months. The most recent releases landed on September 18, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | インフルエンザ警戒計 | BaroNote |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 7 MB | 1 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Takahiro Izaki](https://appshunter.io/developer/511591595) | [ZEC Inc.](https://appshunter.io/developer/1889726396) |

## What reviewers say

### インフルエンザ警戒計

[App page](https://appshunter.io/ios/app/id567745994)

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

**In-app purchases:** none


### BaroNote

[App page](https://appshunter.io/ios/app/baronote/id6767775689)

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

**In-app purchases:** none


## Frequently asked questions

### Is インフルエンザ警戒計 free?

インフルエンザ警戒計 is free to download, with no in-app purchases.

### Is BaroNote free?

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

### Do インフルエンザ警戒計 or BaroNote have ads?

インフルエンザ警戒計 shows ads; BaroNote does not.

### Which is updated more often, インフルエンザ警戒計 or BaroNote?

インフルエンザ警戒計 ships an update every 5 months, and BaroNote every 2 months. Most recently, インフルエンザ警戒計 was updated on September 18, 2026 and BaroNote on September 13, 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.*