# Secret KB vs Deck

The clearest difference is price: Deck at Free against Secret KB's $0.99. Secret KB's advantage is in-app purchases (none vs 2) and iOS requirement (14.0 vs 17.0). On update cadence, ads and device support there is nothing between them.

Deck is free to download; Secret KB costs $0.99 up front. Deck sells 2 in-app purchases, starting at $1.99 per month. Secret KB asks for nothing beyond the download.

Secret KB ships an update every 10 days, Deck every 2 weeks. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Secret KB | Deck |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Size | 6 MB | 21 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Asadullah Jamadar](https://appshunter.io/developer/1655125846) | [Naqeeb Ahmed](https://appshunter.io/developer/1790045081) |

## What reviewers say

### Secret KB

[App page](https://appshunter.io/ios/app/secret-kb/id1605391634)

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

**In-app purchases:** none


### Deck

[App page](https://appshunter.io/ios/app/deck-timer-and-countdown-clock/id6741170044)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Yearly Premium | $14.99 | per year |


## Frequently asked questions

### Is Secret KB free?

Secret KB costs $0.99, with no in-app purchases.

### Is Deck free?

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

### Do Secret KB or Deck have ads?

Neither Secret KB nor Deck shows ads.

### Which is updated more often, Secret KB or Deck?

Secret KB ships an update every 10 days, and Deck every 2 weeks. Most recently, Secret KB was updated on October 18, 2026 and Deck on October 5, 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.*