# Throughline Speed Reader vs Vesper

The clearest difference is iOS requirement: Vesper at 17.5 against Throughline Speed Reader's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Throughline Speed Reader sells 3 in-app purchases, starting at $1.99 per month and Vesper sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Throughline Speed Reader | Vesper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/throughline-speed-reader/id6758305019/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free | — |
| Size | 18 MB | 9 MB |
| Requires iOS | 26.0 | **17.5** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Steven Townsend](https://appshunter.io/developer/1133772209) | [S Tan](https://appshunter.io/developer/1385627600) |

## What reviewers say

### Throughline Speed Reader

[App page](https://appshunter.io/ios/app/throughline-speed-reader/id6758305019)

Enhance your reading speed and comprehension with intelligent pacing that adapts to natural language rhythms. This app presents text one word at a time, optimizing focus and reducing eye movement for a more efficient reading experience. It also offers AI-powered summaries and seamless integration across Apple devices.

**Highlights:** Adaptive word-by-word pacing, Optimal Recognition Point (ORP) alignment, AI-generated summaries with key takeaways, Safari extension for saving articles, Apple Watch app for reading on the go, Detailed reading analytics dashboard, Customizable fonts and interface

**Features:** macOS Compatibility, Safari Extension, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Throughline Pro - Monthly | $1.99 | per month |
| Throughline Pro - Annual | $12.99 | per year |
| Throughline Pro - Lifetime | $29.99 | one-time |


### Vesper

[App page](https://appshunter.io/ios/app/vesper-epub-pdf-and-ai-reader/id6768717115)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vesper Premium Monthly | $2.99 | per month |
| Vesper Premium Yearly | $24.99 | per year |
| Book Library Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Throughline Speed Reader free?

Throughline Speed Reader is free to download, with in-app purchases available.

### Is Vesper free?

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

### Do Throughline Speed Reader or Vesper have ads?

Neither Throughline Speed Reader nor Vesper shows ads.

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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.*