# Know vs DUELO

The clearest difference is ads: Know at none against DUELO's shown. Know also leads on iOS requirement (12.0 vs 17.6). DUELO's advantage is update cadence (every 2 days vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Know sells 12 in-app purchases, starting at $3.99 per month and DUELO sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Know ships an update every 2 months, DUELO every 2 days. The most recent releases landed on October 25, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Know | DUELO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (9 ratings)](https://appshunter.io/ios/app/know-it-all-a-guessing-game/id1522005194/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 15 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Flying Potato Entertainment](https://appshunter.io/developer/1436832344) | [Gianluca Skeledzic](https://appshunter.io/developer/1874557713) |

## What reviewers say

### Know

[App page](https://appshunter.io/ios/app/know-it-all-a-guessing-game/id1522005194)

Engage in a multiplayer guessing game where players estimate facts across various themes. Compete with friends to achieve the highest score and earn bragging rights.

**Highlights:** Multiplayer guessing gameplay, Estimate facts on various themes, Create custom games with chosen sets and rounds, Shared paid content access, Fun mode for bonus points, Competitive scoring system

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $3.99 | per month |
| Premium - Yearly | $22.99 | per year |
| The 2000's II | $1.99 | one-time |
| Medical Curiosities | $1.99 | one-time |
| History lessons I | $1.99 | one-time |
| World records | $1.99 | one-time |
| Crazy stuff | $1.99 | one-time |
| Foodissimo | $1.99 | one-time |
| Let's talk about sex | $1.99 | one-time |
| Hollywood | $1.99 | one-time |
| Crazy world of liquors | $1.99 | one-time |
| All 11 Sets - Save 50% | $10.99 | one-time |


### DUELO

[App page](https://appshunter.io/ios/app/duelo/id6758712986)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Werbefrei | $2.99 | one-time |


## Frequently asked questions

### Is Know free?

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

### Is DUELO free?

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

### Do Know or DUELO have ads?

DUELO shows ads; Know does not.

### Which is updated more often, Know or DUELO?

Know ships an update every 2 months, and DUELO every 2 days. Most recently, Know was updated on October 25, 2026 and DUELO on October 4, 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.*