# t(a)ck vs Arcvellum

The clearest difference is in-app purchases: t(a)ck at none against Arcvellum's 1. t(a)ck also leads on update cadence (every 10 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Arcvellum sells 1 in-app purchase, starting at $6.99 per year. t(a)ck asks for nothing beyond the download.

t(a)ck ships an update every 10 days, Arcvellum monthly. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | t(a)ck | Arcvellum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tack/id6759079984/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Free | — |
| Size | 2 MB | 12 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [AMEYA ZAIRA SHELBY](https://appshunter.io/developer/1876735506) | [迪刚 冯](https://appshunter.io/developer/6773074094) |

## What reviewers say

### t(a)ck

[App page](https://appshunter.io/ios/app/tack/id6759079984)

This app offers a distraction-free reading experience by displaying text word-by-word using Rapid Serial Visual Presentation (RSVP). It allows users to share web articles and read them at adjustable speeds, enhancing focus and comprehension on mobile devices.

**Highlights:** Word-by-word RSVP reading, Adjustable reading speed (200-700 WPM), Smart pacing for punctuation, Distraction-free interface, Resume reading from last position, On-device content extraction

**Features:** macOS Compatibility

**In-app purchases:** none


### Arcvellum

[App page](https://appshunter.io/ios/app/arcvellum/id6777457691)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arcvellum Pro Annual | $6.99 | per year |


## Frequently asked questions

### Is t(a)ck free?

t(a)ck is free to download, with no in-app purchases.

### Is Arcvellum free?

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

### Do t(a)ck or Arcvellum have ads?

Neither t(a)ck nor Arcvellum shows ads.

### Which is updated more often, t(a)ck or Arcvellum?

t(a)ck ships an update every 10 days, and Arcvellum monthly. Most recently, t(a)ck was updated on October 21, 2026 and Arcvellum on October 16, 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.*