# READBASE (リードベース) vs Bookstacks

The clearest difference is in-app purchases: Bookstacks at none against READBASE (リードベース)'s 4. Bookstacks also leads on update cadence (daily vs every 3 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. READBASE (リードベース) sells 4 in-app purchases, starting at $3.99 per month. Bookstacks asks for nothing beyond the download.

READBASE (リードベース) ships an update every 3 days, Bookstacks daily. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | READBASE (リードベース) | Bookstacks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | **Daily** |
| Size | 52 MB | 25 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [kaito kotaka](https://appshunter.io/developer/1848780372) | [Kenta Takeuchi](https://appshunter.io/developer/1879746418) |

## What reviewers say

### READBASE (リードベース)

[App page](https://appshunter.io/ios/app/readbase/id6754545629)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| gem3 | $0.99 | one-time |
| gem5 | $2.99 | one-time |
| gem30 | $6.99 | one-time |


### Bookstacks

[App page](https://appshunter.io/ios/app/bookstacks/id6760252143)

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

**In-app purchases:** none


## Frequently asked questions

### Is READBASE (リードベース) free?

READBASE (リードベース) is free to download, with in-app purchases available.

### Is Bookstacks free?

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

### Do READBASE (リードベース) or Bookstacks have ads?

Both READBASE (リードベース) and Bookstacks show ads.

### Which is updated more often, READBASE (リードベース) or Bookstacks?

READBASE (リードベース) ships an update every 3 days, and Bookstacks daily. Most recently, READBASE (リードベース) was updated on October 28, 2026 and Bookstacks on October 25, 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.*