# RefCentralHub vs SDPE Quiz 2026/27

The clearest difference is update cadence: SDPE Quiz 2026/27 at weekly against RefCentralHub's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RefCentralHub ships an update every 3 weeks, SDPE Quiz 2026/27 weekly. The most recent releases landed on October 28, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | RefCentralHub | SDPE Quiz 2026/27 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 61 MB | 36 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dimitar Josheski](https://appshunter.io/developer/1627549593) | [CHRISTOS SIAPLAOURAS](https://appshunter.io/developer/6791492231) |

## What reviewers say

### RefCentralHub

[App page](https://appshunter.io/ios/app/refcentralhub/id6744536608)

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

**In-app purchases:** none


### SDPE Quiz 2026/27

[App page](https://appshunter.io/ios/app/sdpe-quiz-202627/id6791492079)

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

**In-app purchases:** none


## Frequently asked questions

### Is RefCentralHub free?

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

### Is SDPE Quiz 2026/27 free?

SDPE Quiz 2026/27 is free to download, with no in-app purchases.

### Do RefCentralHub or SDPE Quiz 2026/27 have ads?

Neither RefCentralHub nor SDPE Quiz 2026/27 shows ads.

### Which is updated more often, RefCentralHub or SDPE Quiz 2026/27?

RefCentralHub ships an update every 3 weeks, and SDPE Quiz 2026/27 weekly. Most recently, RefCentralHub was updated on October 28, 2026 and SDPE Quiz 2026/27 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.*