# iCTF vs Clio

The clearest difference is price: Clio at Free against iCTF's $3.99. Clio also leads on update cadence (every 3 days vs every 2 months). iCTF's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Clio is free to download; iCTF costs $3.99 up front. Clio sells 3 in-app purchases, starting at $4.99 per month. iCTF asks for nothing beyond the download.

iCTF ships an update every 2 months, Clio every 3 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | iCTF | Clio |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 24 MB | 62 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jeremy Laratro](https://appshunter.io/developer/1864044207) | [Andrii Zakharov](https://appshunter.io/developer/6779217338) |

## What reviewers say

### iCTF

[App page](https://appshunter.io/ios/app/ictf/id6756991047)

**Features:** macOS Compatibility

**In-app purchases:** none


### Clio

[App page](https://appshunter.io/ios/app/clio-learn-ai-understand-ai/id6783638304)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clio Pro | $4.99 | per month |
| Clio Pro Yearly | $29.99 | per year |
| Clio Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is iCTF free?

iCTF costs $3.99, with no in-app purchases.

### Is Clio free?

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

### Do iCTF or Clio have ads?

Clio shows ads; iCTF does not.

### Which is updated more often, iCTF or Clio?

iCTF ships an update every 2 months, and Clio every 3 days. Most recently, iCTF was updated on October 30, 2026 and Clio on November 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.*