# ChemTracker vs Startpage

The clearest difference is review sentiment: ChemTracker at 100% against Startpage's 71%. ChemTracker also leads on update cadence (every 10 days vs monthly) and iOS requirement (10.2 vs 15.0). Startpage's advantage is rating (4.8 vs 4.4) and ratings volume (7.3K vs 7). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Startpage holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Startpage has 7.3K ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 100% of ChemTracker's written reviews are positive against 71% of Startpage's, so the app with the better star average is not the one people write more warmly about.

ChemTracker ships an update every 10 days, Startpage monthly. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | ChemTracker | Startpage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/chemtracker/id1584781198/reviews) | **[4.8 (7.3K ratings)](https://appshunter.io/ios/app/startpage-private-browser/id6478921430/reviews)** |
| Number of ratings | 7 | **7.3K** |
| Positive reviews | **100.0% of reviews** | 70.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Free | Free |
| Size | 54 MB | 239 MB |
| Requires iOS | **10.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Alex Jones](https://appshunter.io/developer/1584781200) | [Startpage BV](https://appshunter.io/developer/632832985) |

## What reviewers say

### 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


### Startpage

[App page](https://appshunter.io/ios/app/startpage-private-browser/id6478921430)

Browse the web and search privately with a built-in search engine that protects your data. It clears your history and tabs with one tap, masks your location and IP address, and provides unprofiled search results. Enjoy a secure and private online experience.

**Highlights:** Private search engine, Clear tabs and history, Anonymous website visits, Private tabs and maps, Unprofiled search results, Avoid targeted ads

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 🚀 Lightning-fast and responsive
- 🔒 Robust privacy and security features
- 👍 Clean and user-friendly interface
- 🔍 Accurate and relevant search results
- 🕊️ Preserves user privacy and anonymity

**What reviewers complain about**

- 🐛 Occasional crashes and stability issues
- 🔍 Limited search customization options
- 🔌 Lack of built-in ad blocker
- 🔍 Inconsistent search engine behavior across platforms

**Reported bugs**

- Pages not loading properly
- Inconsistent behavior when searching from iOS home screen
- Anonymous view failing to load images/thumbnails

**Requested features**

- Dark mode option
- Ability to export bookmarks and reading lists
- One-tap history/data clearing
- Option to set default private browsing mode
- StartMail app integration


## Frequently asked questions

### Is ChemTracker free?

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

### Is Startpage free?

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

### Which has better reviews, ChemTracker or Startpage?

Startpage is rated higher. ChemTracker averages 4.4 out of 5 from 7 ratings, while Startpage averages 4.8 from 7.3K ratings.

### Do ChemTracker or Startpage have ads?

Neither ChemTracker nor Startpage shows ads.

### Which is updated more often, ChemTracker or Startpage?

ChemTracker ships an update every 10 days, and Startpage monthly. Most recently, ChemTracker was updated on October 7, 2026 and Startpage 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.*