# SemanTer vs ChatPDF

The clearest difference is review sentiment: SemanTer at 50% against ChatPDF's 0%. SemanTer also leads on ads (none vs shown) and device support (3 vs 1). ChatPDF's advantage is rating (4.2 vs 3.1). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. SemanTer sells 7 in-app purchases, starting at $1.49 per 7 days and ChatPDF sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ChatPDF holds the better App Store score, 4.2 against 3.1. Both are backed by a comparable volume of ratings — 9 and 5 respectively. Written reviews complicate that: 50% of SemanTer's written reviews are positive against 0% of ChatPDF's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SemanTer | ChatPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (9 ratings)](https://appshunter.io/ios/app/semanter-text-summarizer/id1063365070/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/chatpdf-summarize-and-ask-pdf/id6502504985/reviews)** |
| Number of ratings | **9** | 5 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 113 MB | 24 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Stanislav Iegorov](https://appshunter.io/developer/1063365069) | [Tiny Leo Co., Ltd](https://appshunter.io/developer/1660777736) |

## What reviewers say

### SemanTer

[App page](https://appshunter.io/ios/app/semanter-text-summarizer/id1063365070)

This tool efficiently creates summaries of articles and webpages, reducing hours of work to seconds. It preserves the original meaning and allows users to adjust the summary length. Supports multiple languages and offers features like a dark theme and embedded browser.

**Highlights:** AI-powered text summarization, Adjustable summary length, Summarize links and URLs, Multilingual support (16 languages), Dark theme and refreshed UI, Summarize files (PDF, DOC, etc.) with Pro version, Export summaries to PDF

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $1.49 | per 7 days |
| Monthly subscription | $3.49 | per month |
| 12 summaries | $0.99 | one-time |
| Remove ads | $0.99 | one-time |
| 25 summaries | $1.99 | one-time |
| 39 summaries | $2.99 | one-time |
| 99 summaries | $5.99 | one-time |


### ChatPDF

[App page](https://appshunter.io/ios/app/chatpdf-summarize-and-ask-pdf/id6502504985)

This AI-powered chatbot helps you interact with PDF documents by providing instant summaries, answering detailed questions, and highlighting key information. It streamlines document analysis for students, professionals, and researchers, saving time and enhancing understanding.

**Highlights:** Upload and chat with PDFs, Instant document summaries, Detailed Q&A on content, Keyword search and highlighting, Multi-language support, User-friendly interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Trial Premium | $2.99 | per 7 days |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is SemanTer free?

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

### Is ChatPDF free?

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

### Which has better reviews, SemanTer or ChatPDF?

ChatPDF is rated higher. SemanTer averages 3.1 out of 5 from 9 ratings, while ChatPDF averages 4.2 from 5 ratings.

### Do SemanTer or ChatPDF have ads?

ChatPDF shows ads; SemanTer does not.

### Which is updated more often, SemanTer or ChatPDF?

SemanTer ships an update every 2 months, and ChatPDF every 2 months. Most recently, SemanTer was updated on October 24, 2026 and ChatPDF on October 30, 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.*