# Highlights vs ChemTECH 2026

The clearest difference is in-app purchases: ChemTECH 2026 at none against Highlights's 3. ChemTECH 2026 also leads on update cadence (every 4 days vs fortnightly) and iOS requirement (12.0 vs 15.0). Highlights's advantage is device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Highlights sells 3 in-app purchases, starting at $4.99 per month. ChemTECH 2026 asks for nothing beyond the download.

Highlights ships an update fortnightly, ChemTECH 2026 every 4 days. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Highlights | ChemTECH 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.6K ratings)](https://appshunter.io/ios/app/highlights-pdf-reader-and-notes/id1498912833/reviews)** | — |
| Number of ratings | **1.6K** | — |
| Positive reviews | 53.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 37 MB | 70 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Jonas Myren Ribe](https://appshunter.io/developer/794854096) | [Tarun Lalan](https://appshunter.io/developer/931938808) |

## What reviewers say

### Highlights

[App page](https://appshunter.io/ios/app/highlights-pdf-reader-and-notes/id1498912833)

This app is a fast and lightweight PDF reader designed for research. It allows users to read, highlight, and annotate documents, and then extract this information into organized notes. Advanced features include table data extraction, text recognition, and smart copying of annotations into various formats.

**Highlights:** Read and browse PDF documents, Highlight, underline, and strikethrough text, Add comments and sticky notes, Extract annotations into organized notes, Convert table data and recognize text, Smart copy annotations to various formats (CSV, BibTex), Lookup citation metadata and DOI links

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Highlights Pro: Monthly | $4.99 | per month |
| Highlights Pro | $29.99 | per year |
| Highlights Pro: Legacy Upgrade | $29.99 | per year |

**What reviewers like**

- 🚀 Great for highlighting and annotating PDFs
- 🔍 Effective for research and note-taking
- 📚 Useful for academic and professional work
- 👍 Clean and intuitive user interface
- 🔗 Good integration with other apps and cloud storage

**What reviewers complain about**

- 💰 Subscription model is too expensive
- 🐛 Frequent crashes and bugs
- 🔍 Limited search functionality
- 🔒 Lack of customization options
- 🔧 Poor customer support and unresponsive developers

**Reported bugs**

- Highlights and annotations randomly disappearing
- Text selection issues, especially with footnotes
- Compatibility problems with certain PDF files
- Syncing issues across devices
- Export functionality not working as expected

**Requested features**

- Add handwriting and freeform annotation support
- Implement a table of contents or bookmarking feature
- Allow editing of notes directly in the app
- Provide a one-time purchase option instead of subscription
- Improve search capabilities with visual results and navigation


### ChemTECH 2026

[App page](https://appshunter.io/ios/app/chemtech-2026/id6755063166)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Highlights free?

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

### Is ChemTECH 2026 free?

ChemTECH 2026 is free to download, with no in-app purchases.

### Do Highlights or ChemTECH 2026 have ads?

Neither Highlights nor ChemTECH 2026 shows ads.

### Which is updated more often, Highlights or ChemTECH 2026?

Highlights ships an update fortnightly, and ChemTECH 2026 every 4 days. Most recently, Highlights was updated on October 14, 2026 and ChemTECH 2026 on October 12, 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.*