# Pollen Shield vs 地震マップ30

The clearest difference is ads: Pollen Shield at none against 地震マップ30's shown. Pollen Shield also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, 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.

Pollen Shield ships an update every 8 days, 地震マップ30 weekly. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Pollen Shield | 地震マップ30 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 days | **Weekly** |
| Size | 2 MB | 10 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [playpark](https://appshunter.io/developer/1679691371) | [KAZUYUKI TAJIMA](https://appshunter.io/developer/876885221) |

## What reviewers say

### Pollen Shield

[App page](https://appshunter.io/ios/app/pollen-shield/id6762162698)

**In-app purchases:** none


### 地震マップ30

[App page](https://appshunter.io/ios/app/30/id6799633870)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pollen Shield free?

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

### Is 地震マップ30 free?

地震マップ30 is free to download, with no in-app purchases.

### Do Pollen Shield or 地震マップ30 have ads?

地震マップ30 shows ads; Pollen Shield does not.

### Which is updated more often, Pollen Shield or 地震マップ30?

Pollen Shield ships an update every 8 days, and 地震マップ30 weekly. Most recently, Pollen Shield was updated on October 31, 2026 and 地震マップ30 on November 10, 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.*