# Smartest iq vs Curio

The clearest difference is update cadence: Curio at every 5 days against Smartest iq's every 12 months. Smartest iq's advantage is device support (3 vs 1) and iOS requirement (15.5 vs 17.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Smartest iq sells 10 one-off in-app purchases and Curio sells 8 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Smartest iq ships an update every 12 months, Curio every 5 days. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Smartest iq | Curio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 146 MB | 129 MB |
| Requires iOS | **15.5** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Online Learning](https://appshunter.io/developer/1790866777) | [Kilian Cermin](https://appshunter.io/developer/6773889116) |

## What reviewers say

### Smartest iq

[App page](https://appshunter.io/ios/app/smartest-iq/id6476566649)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - AX | $39.99 | one-time |
| Package - AZ | $39.99 | one-time |
| Package - BA | $39.99 | one-time |
| Package - BD | $39.99 | one-time |
| Package - BB | $39.99 | one-time |
| Package - BC | $39.99 | one-time |
| Package - BE | $44.99 | one-time |
| Package - BG | $49.99 | one-time |
| Package - BH | $49.99 | one-time |
| Package - BF | $49.99 | one-time |


### Curio

[App page](https://appshunter.io/ios/app/curio-general-knowledge/id6773889114)

Expand your general knowledge with bite-sized facts delivered through a swipeable interface. Engage with quizzes to reinforce learning and discover new interests across various categories. Become a more informed individual with daily doses of fascinating information.

**Highlights:** Swipeable fact cards, Experience points and leagues, Daily knowledge in snack format, Quizzes to solidify learning, Curated feed from 20+ categories, Conversation starters

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Curio Pro (1 Month) | $2.99 | per month |
| Curio Pro (1 Month) | $3.99 | per month |
| Curio Pro (1 Month) | $6.99 | per month |
| Curio Pro (1 Month) | $8.99 | per month |
| Curio Pro (1 Year) | $17.99 | per year |
| Curio Pro (1 Year) | $29.99 | per year |
| Curio Pro (1 Year) | $44.99 | per year |
| Curio Pro (1 Year) | $59.99 | per year |


## Frequently asked questions

### Is Smartest iq free?

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

### Is Curio free?

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

### Do Smartest iq or Curio have ads?

Neither Smartest iq nor Curio shows ads.

### Which is updated more often, Smartest iq or Curio?

Smartest iq ships an update every 12 months, and Curio every 5 days. Most recently, Smartest iq was updated on October 3, 2026 and Curio on October 11, 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.*