# Rapidly vs Glyphi

The clearest difference is update cadence: Glyphi at every 4 days against Rapidly's fortnightly. Rapidly's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Rapidly sells 4 in-app purchases, starting at $2.99 per 7 days and Glyphi sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Rapidly ships an update fortnightly, Glyphi every 4 days. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Rapidly | Glyphi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rapidly-speed-reading/id6758515012/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 43 MB | 11 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BAGL LIMITED](https://appshunter.io/developer/1833752222) | [Vahdet Caliskan](https://appshunter.io/developer/6777045244) |

## What reviewers say

### Rapidly

[App page](https://appshunter.io/ios/app/rapidly-speed-reading/id6758515012)

Enhance your reading speed and focus with this app's RSVP technique. It displays words sequentially, reducing eye movement to help you process articles, PDFs, and EPUBs faster. Track your progress and adjust your reading pace from 100 to over 1200 WPM.

**Highlights:** RSVP reading technique, Import from URL, clipboard, files, Adjustable reading speed (100-1200+ WPM), Automatic chapter detection, Progress tracking, Dark mode, Resume reading

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rapidly Pro | $2.99 | per 7 days |
| Rapidly Pro | $3.99 | per month |
| Rapidly Pro | $14.99 | per year |
| Rapidly Pro | $24.99 | one-time |


### Glyphi

[App page](https://appshunter.io/ios/app/glyphi-speed-reader/id6790872173)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Glyphi Monthly | $4.99 | per month |
| Glyphi Yearly | $39.99 | per year |


## Frequently asked questions

### Is Rapidly free?

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

### Is Glyphi free?

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

### Do Rapidly or Glyphi have ads?

Neither Rapidly nor Glyphi shows ads.

### Which is updated more often, Rapidly or Glyphi?

Rapidly ships an update fortnightly, and Glyphi every 4 days. Most recently, Rapidly was updated on October 9, 2026 and Glyphi 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.*