# Bitdefender Mobile Security vs AI Security

The clearest difference is monetization model: Bitdefender Mobile Security at free with in-app purchases against AI Security's subscription. Bitdefender Mobile Security also leads on update cadence (weekly vs every 3 weeks) and rating (4.7 vs 4.5). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Bitdefender Mobile Security sells 8 in-app purchases, starting at $3.99 per month and AI Security sells 12 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Bitdefender Mobile Security holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 37K and 9.5K respectively. Written reviews complicate that: 46% of Bitdefender Mobile Security's written reviews are positive against 49% of AI Security's, so the app with the better star average is not the one people write more warmly about.

Bitdefender Mobile Security ships an update weekly, AI Security every 3 weeks. Both last shipped on September 28, 2026.

## The numbers

| Metric | Bitdefender Mobile Security | AI Security |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (37K ratings)](https://appshunter.io/ios/app/bitdefender-mobile-security/id1255893012/reviews)** | [4.5 (9.5K ratings)](https://appshunter.io/ios/app/ai-security-storage-privacy/id6479976058/reviews) |
| Number of ratings | **37K** | 9.5K |
| Positive reviews | 46.3% of reviews | **49.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 184 MB | 151 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bitdefender SRL](https://appshunter.io/developer/384899757) | [Magic Snail](https://appshunter.io/developer/1758662275) |

## What reviewers say

### Bitdefender Mobile Security

[App page](https://appshunter.io/ios/app/bitdefender-mobile-security/id1255893012)

Safeguard your iPhone from phishing, malicious websites, and data breaches. This app offers real-time threat monitoring, security scans, and account privacy checks to protect your personal information and online identity.

**Highlights:** Scam Alert for phishing, Web Protection against dangerous sites, Security Scan for vulnerabilities, Account Privacy breach checks, Essential VPN Protection, Real-time threat monitoring

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mobile Security Monthly | $3.99 | per month |
| Monthly Premium VPN | $6.99 | per month |
| Total Security Monthly | $9.99 | per month |
| Mobile Security Yearly | $29.99 | per year |
| Mobile Security Yearly | $29.99 | per year |
| Yearly Premium VPN | $69.99 | per year |
| Total Security Yearly | $109.99 | per year |
| Ultimate Security Individual Yearly | $159.99 | per year |

**What reviewers like**

- 🚀 Great security
- 🔒 Protects against scams and malware
- 👍 Easy to use
- 🚀 Reliable VPN connection
- 🔒 Keeps devices safe

**What reviewers complain about**

- 🐛 Frequent disconnections of VPN and web protection
- 🔋 Drains battery quickly
- 🐛 Interferes with other apps and services
- 🐛 Buggy and unreliable
- 💰 Expensive for limited features

**Reported bugs**

- Web protection randomly turning off
- VPN connection issues and errors
- Compatibility problems with iOS devices
- Subscription and billing problems

**Requested features**

- Automatic web protection and VPN connection
- Better integration with other apps
- More transparent pricing and subscription model
- Improved customer support


### AI Security

[App page](https://appshunter.io/ios/app/ai-security-storage-privacy/id6479976058)

This app offers a suite of tools to protect your phone and privacy. It includes a secure browser, device security checks, Wi-Fi safety evaluation, ad blocker, private vault, and phone cleaner to free up storage space.

**Highlights:** Secure Browser, Device Security Check, Wi-Fi Safety Evaluation, Duplicate Photo & Video Cleaner, Private Vault, Ad Blocker

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Security Pro 1 Week | $5.99 | per 7 days |
| AI Security Pro 1 Week | $5.99 | per 7 days |
| AI Security Pro 1 Week | $6.99 | per 7 days |
| AI Security Pro 1 Week | $9.99 | per 7 days |
| AI Security Pro 1 Month | $9.99 | per month |
| AI Security Pro 1 Week | $9.99 | per 7 days |
| AI Security Pro 1 Week | $12.99 | per 7 days |
| AI Security Pro 1 Week | $12.99 | per 7 days |
| AI Security Pro 1 Year | $29.99 | per year |
| AI Security Pro 1 Year | $34.99 | per year |
| AI Security Pro 1 Year | $39.99 | per year |
| AI Security Pro Permanent | $19.99 | one-time |

**What reviewers like**

- 🚀 Quick and easy to use
- 👍 Helpful for cleaning up photos and storage
- 🔒 Provides security and privacy features

**What reviewers complain about**

- 🚫 Not actually free, has hidden subscription fees
- 🤥 Misleading advertising about being free
- 💰 Expensive subscription costs
- 🤔 Unclear about what the app actually does

**Reported bugs**

- Accidentally deleting important photos and files
- App reverting user settings and choices
- Compatibility issues with older devices

**Requested features**

- More transparency about pricing and features
- Better explanation of how the app works
- Option to selectively clean files instead of bulk deletion


## Frequently asked questions

### Is Bitdefender Mobile Security free?

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

### Is AI Security free?

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

### Which has better reviews, Bitdefender Mobile Security or AI Security?

Bitdefender Mobile Security is rated higher. Bitdefender Mobile Security averages 4.7 out of 5 from 37K ratings, while AI Security averages 4.5 from 9.5K ratings.

### Do Bitdefender Mobile Security or AI Security have ads?

Neither Bitdefender Mobile Security nor AI Security shows ads.

### Which is updated more often, Bitdefender Mobile Security or AI Security?

Bitdefender Mobile Security ships an update weekly, and AI Security every 3 weeks. Most recently, Bitdefender Mobile Security was updated on September 28, 2026 and AI Security on September 28, 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.*