# UtilKB vs QuantumReader

The clearest difference is in-app purchases: UtilKB at none against QuantumReader's 1. UtilKB also leads on update cadence (daily vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. QuantumReader sells 1 one-off in-app purchase. UtilKB asks for nothing beyond the download.

UtilKB ships an update daily, QuantumReader every 2 months. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | UtilKB | QuantumReader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 months |
| Size | 2 MB | 5 MB |
| Requires iOS | 17 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Angda Song](https://appshunter.io/developer/1808330786) | [Masayuki Akamatsu](https://appshunter.io/developer/284722836) |

## What reviewers say

### UtilKB

[App page](https://appshunter.io/ios/app/utilkb/id6745785313)

**In-app purchases:** none


### QuantumReader

[App page](https://appshunter.io/ios/app/quantumreader/id6752207408)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is UtilKB free?

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

### Is QuantumReader free?

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

### Do UtilKB or QuantumReader have ads?

Neither UtilKB nor QuantumReader shows ads.

### Which is updated more often, UtilKB or QuantumReader?

UtilKB ships an update daily, and QuantumReader every 2 months. Most recently, UtilKB was updated on September 23, 2026 and QuantumReader on September 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.*