# CIRSS vs EarthWatch

The clearest difference is rating: EarthWatch at 5.0 against CIRSS's 1.8. EarthWatch also leads on update cadence (every 2 weeks vs every 4 months). CIRSS's advantage is ratings volume (5 vs 1) and iOS requirement (12.0 vs 26.2). 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.

EarthWatch holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: CIRSS has 5 ratings behind it against 1, so its average is the more settled of the two.

CIRSS ships an update every 4 months, EarthWatch every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | CIRSS | EarthWatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (5 ratings)](https://appshunter.io/ios/app/cirss/id6743087990/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/earthwatch/id6757124855/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 21 MB | 13 MB |
| Requires iOS | **12.0** | 26.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen Wllink Technology Co., Ltd.](https://appshunter.io/developer/1065212219) | [Michael Galliers](https://appshunter.io/developer/1539851749) |

## What reviewers say

### CIRSS

[App page](https://appshunter.io/ios/app/cirss/id6743087990)

Enhance your audio experience with personalized sound settings. This utility supports pure sound audiometry for tailored hearing and offers multi-mode environmental volume adjustment for optimal comfort.

**Highlights:** Unique sound experience, Pure sound audiometry, Customizable hearing settings, Multi-mode environmental volume adjustment, Comfortable external sound

**Features:** macOS Compatibility

**In-app purchases:** none


### EarthWatch

[App page](https://appshunter.io/ios/app/earthwatch/id6757124855)

**In-app purchases:** none


## Frequently asked questions

### Is CIRSS free?

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

### Is EarthWatch free?

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

### Which has better reviews, CIRSS or EarthWatch?

EarthWatch is rated higher. CIRSS averages 1.8 out of 5 from 5 ratings, while EarthWatch averages 5.0 from 1 ratings.

### Do CIRSS or EarthWatch have ads?

Neither CIRSS nor EarthWatch shows ads.

### Which is updated more often, CIRSS or EarthWatch?

CIRSS ships an update every 4 months, and EarthWatch every 2 weeks. Most recently, CIRSS was updated on October 24, 2026 and EarthWatch on October 24, 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.*