# Cool Cleaner vs Security Master

The clearest difference is ratings volume: Security Master at 4K against Cool Cleaner's 139. Cool Cleaner's advantage is review sentiment (67% vs 55%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Cool Cleaner sells 4 in-app purchases, starting at $9.99 per 7 days and Security Master sells 2 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for Cool Cleaner against 4.4 for Security Master. That said, the two scores are not equally well evidenced: Security Master has 4K ratings behind it against 139, so its average is the more settled of the two. Written reviews are what separate them: 67% of Cool Cleaner's written reviews are positive against 55% of Security Master's.

Cool Cleaner ships an update weekly, Security Master every 11 days. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Cool Cleaner | Security Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (139 ratings)](https://appshunter.io/ios/app/cool-cleaner/id6450886310/reviews) | **[4.4 (4K ratings)](https://appshunter.io/ios/app/security-master-data-privacy/id6504529234/reviews)** |
| Number of ratings | 139 | **4K** |
| Positive reviews | **66.7% of reviews** | 55.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 11 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 66 MB | 20 MB |
| Requires iOS | 16 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [淑滢 张](https://appshunter.io/developer/1675789809) | [Mobiwave Limited](https://appshunter.io/developer/1752684803) |

## What reviewers say

### Cool Cleaner

[App page](https://appshunter.io/ios/app/cool-cleaner/id6450886310)

This utility app helps free up phone storage by identifying and removing duplicate photos, large files, and unused calendar entries. It also offers tools for managing contacts and testing network speed.

**Highlights:** Duplicate photo cleaner, Large file removal, Video file resizing, Contact management, Calendar cleanup, System information, Network speed test

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Prime | $9.99 | per 7 days |
| Monthly Prime | $24.99 | per month |
| Yearly Prime | $79.99 | per year |
| Lifespan Prime | $89.99 | one-time |


### Security Master

[App page](https://appshunter.io/ios/app/security-master-data-privacy/id6504529234)

Protect your personal information and enhance your online activity. This app offers privacy checks, data leak alerts, secure storage for sensitive files, and a protected browsing experience. Keep your digital life safe and your browsing uninterrupted.

**Highlights:** Privacy Checkup, Data Leaks Check, Safe Storage for Files, Secure Browser, Malicious Sites Blocking, Tracker and Ad Blocking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trial Premium Weekly | $8.99 | per 7 days |
| Premium Yearly | $49.99 | per year |

**What reviewers like**

- 🚀 Fast app
- 🔒 Provides security
- 👍 Helpful app

**What reviewers complain about**

- 🐛 Bugs and glitches
- 💰 Paid subscription
- 🤔 Confusing for some users

**Reported bugs**

- Login issues
- Compatibility problems

**Requested features**

- More help and guidance for users
- Free trial period


## Frequently asked questions

### Is Cool Cleaner free?

Cool Cleaner is free to download, with in-app purchases available.

### Is Security Master free?

Security Master is free to download, with in-app purchases available.

### Which has better reviews, Cool Cleaner or Security Master?

Security Master is rated higher. Cool Cleaner averages 4.3 out of 5 from 139 ratings, while Security Master averages 4.4 from 4K ratings.

### Do Cool Cleaner or Security Master have ads?

Both Cool Cleaner and Security Master show ads.

### Which is updated more often, Cool Cleaner or Security Master?

Cool Cleaner ships an update weekly, and Security Master every 11 days. Most recently, Cool Cleaner was updated on October 2, 2026 and Security Master on October 14, 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.*