# Bitdefender Mobile Security vs ChemTracker

The clearest difference is review sentiment: ChemTracker at 100% against Bitdefender Mobile Security's 46%. ChemTracker also leads on in-app purchases (none vs 8) and iOS requirement (10.2 vs 13.0). Bitdefender Mobile Security's advantage is ratings volume (37K vs 7) and rating (4.7 vs 4.4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Bitdefender Mobile Security sells 8 in-app purchases, starting at $3.99 per month. ChemTracker asks for nothing beyond the download.

Bitdefender Mobile Security holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Bitdefender Mobile Security has 37K ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 46% of Bitdefender Mobile Security's written reviews are positive against 100% of ChemTracker'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, ChemTracker every 10 days. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bitdefender Mobile Security | ChemTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (37K ratings)](https://appshunter.io/ios/app/bitdefender-mobile-security/id1255893012/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/chemtracker/id1584781198/reviews) |
| Number of ratings | **37K** | 7 |
| Positive reviews | 46.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#186** | — |
| Size | 184 MB | 54 MB |
| Requires iOS | 13.0 | **10.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bitdefender SRL](https://appshunter.io/developer/384899757) | [Alex Jones](https://appshunter.io/developer/1584781200) |

## What reviewers say

### Bitdefender Mobile Security

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

**Currently charting:** #186 Top Grossing · Utilities (US App Store)

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


### ChemTracker

[App page](https://appshunter.io/ios/app/chemtracker/id1584781198)

This app provides a secure platform for users worldwide to submit evidence of air pollution. It aims to create a global record of environmental concerns.

**Highlights:** Secure evidence submission, Global user base, Pollution tracking, Environmental data collection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bitdefender Mobile Security free?

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

### Is ChemTracker free?

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

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

Bitdefender Mobile Security is rated higher. Bitdefender Mobile Security averages 4.7 out of 5 from 37K ratings, while ChemTracker averages 4.4 from 7 ratings.

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

Neither Bitdefender Mobile Security nor ChemTracker shows ads.

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

Bitdefender Mobile Security ships an update weekly, and ChemTracker every 10 days. Most recently, Bitdefender Mobile Security was updated on October 14, 2026 and ChemTracker on October 7, 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.*