# Truthly | iKnow vs Summary AI

The clearest difference is update cadence: Truthly | iKnow at daily against Summary AI's every 3 weeks. Truthly | iKnow also leads on iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Truthly | iKnow sells 2 in-app purchases, starting at $2.99 per 7 days and Summary AI sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Truthly | iKnow ships an update daily, Summary AI every 3 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Truthly | iKnow | Summary AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Size | 50 MB | 43 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Francisco Andrade](https://appshunter.io/developer/1857780356) | [Manthan Prajapati](https://appshunter.io/developer/1851010143) |

## What reviewers say

### Truthly | iKnow

[App page](https://appshunter.io/ios/app/truthly-iknow/id6751716617)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Auto Renewable Subscription | $2.99 | per 7 days |
| Auto Renewable Subscription | $4.99 | per month |


### Summary AI

[App page](https://appshunter.io/ios/app/summary-ai-notes-and-summarize/id6759404214)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro monthly | $5.99 | per month |
| pro yearly | $12.99 | per year |


## Frequently asked questions

### Is Truthly | iKnow free?

Truthly | iKnow is free to download, with in-app purchases available.

### Is Summary AI free?

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

### Do Truthly | iKnow or Summary AI have ads?

Neither Truthly | iKnow nor Summary AI shows ads.

### Which is updated more often, Truthly | iKnow or Summary AI?

Truthly | iKnow ships an update daily, and Summary AI every 3 weeks. Most recently, Truthly | iKnow was updated on October 28, 2026 and Summary AI on October 25, 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.*