# DryEyeRhythm vs 保護ブラウザ

The clearest difference is ads: DryEyeRhythm at none against 保護ブラウザ's shown. DryEyeRhythm also leads on monetization model (free vs ad-supported). 保護ブラウザ's advantage is review sentiment (33% vs 6%) and iOS requirement (14.0 vs 16.0). 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.

DryEyeRhythm ships an update every 3 months, 保護ブラウザ every 2 months. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | DryEyeRhythm | 保護ブラウザ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 5.6% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 24 MB | 57 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [順天堂大学](https://appshunter.io/developer/1080910962) | [hidehiko aihara](https://appshunter.io/developer/1178520609) |

## What reviewers say

### DryEyeRhythm

[App page](https://appshunter.io/ios/app/dryeyerhythm/id1164781008)

Assess your dry eye condition with a quick smartphone check. Track daily changes, lifestyle factors, and contribute to university research. Understand potential links between dry eye, headaches, and stiff shoulders.

**Highlights:** 5-minute dry eye measurement, Lifestyle correlation tracking, Dry eye status map, Contribution to university research, Visual results on graphs and calendars, Privacy-protected data

**Features:** Vision Pro support

**In-app purchases:** none


### 保護ブラウザ

[App page](https://appshunter.io/ios/app/id1551906269)

Reduce eye strain with this app that offers adjustable screen filters to block blue light. Customize the blue light reduction percentage and choose from four filter colors. It's designed to be lightweight and easy to use for prolonged periods.

**Highlights:** Adjustable blue light cut rate (0-80%), Four color filter options, Transparency adjustment, Lightweight performance, Privacy screen enhancement, Favorite and history functions

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

**In-app purchases:** none


## Frequently asked questions

### Is DryEyeRhythm free?

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

### Is 保護ブラウザ free?

保護ブラウザ is free to download, with no in-app purchases.

### Do DryEyeRhythm or 保護ブラウザ have ads?

保護ブラウザ shows ads; DryEyeRhythm does not.

### Which is updated more often, DryEyeRhythm or 保護ブラウザ?

DryEyeRhythm ships an update every 3 months, and 保護ブラウザ every 2 months. Most recently, DryEyeRhythm was updated on October 16, 2026 and 保護ブラウザ on October 17, 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.*