# What? Ask AI vs DeckPrompt

The clearest difference is update cadence: DeckPrompt at every 10 days against What? Ask AI's every 2 months. What? Ask AI's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. What? Ask AI sells 4 in-app purchases, starting at $2.99 per month and DeckPrompt sells 1 in-app purchase, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

What? Ask AI ships an update every 2 months, DeckPrompt every 10 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | What? Ask AI | DeckPrompt |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 47 MB | 6 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Robert Gaffaney](https://appshunter.io/developer/1829595704) | [X8IQ Ltd](https://appshunter.io/developer/1879752259) |

## What reviewers say

### What? Ask AI

[App page](https://appshunter.io/ios/app/what-ask-ai/id6754859858)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Standard Subscription | $2.99 | per month |
| Monthly Premium Subscription | $9.99 | per month |
| Yearly Standard Subscription | $29.99 | per year |
| Yearly Premium Subscription | $99.99 | per year |


### DeckPrompt

[App page](https://appshunter.io/ios/app/deckprompt/id6760260042)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DeckPrompt AI Subscription. | $9.99 | per year |


## Frequently asked questions

### Is What? Ask AI free?

What? Ask AI is free to download, with in-app purchases available.

### Is DeckPrompt free?

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

### Do What? Ask AI or DeckPrompt have ads?

Neither What? Ask AI nor DeckPrompt shows ads.

### Which is updated more often, What? Ask AI or DeckPrompt?

What? Ask AI ships an update every 2 months, and DeckPrompt every 10 days. Most recently, What? Ask AI was updated on October 21, 2026 and DeckPrompt on October 10, 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.*