# Piggy Knowledge vs ContextorAI

The clearest difference is iOS requirement: Piggy Knowledge at 11.0 against ContextorAI's 16.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Piggy Knowledge sells 1 one-off in-app purchase and ContextorAI sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Piggy Knowledge | ContextorAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/contextorai-ai-for-notes/id6759231826/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 50 MB | 98 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Rolling Pig Studio](https://appshunter.io/developer/1039625108) | [Coiner.Cab Corp](https://appshunter.io/developer/1674968391) |

## What reviewers say

### Piggy Knowledge

[App page](https://appshunter.io/ios/app/piggy-knowledge/id6466038846)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |


### ContextorAI

[App page](https://appshunter.io/ios/app/contextorai-ai-for-notes/id6759231826)

This app transforms your notes into a personalized knowledge base powered by AI. Chat with an AI that understands your context and previous research, ensuring nothing gets lost. Capture anything, organize smartly with auto-generated tags, and access your knowledge across devices.

**Highlights:** Personalized AI knowledge base, Capture notes, photos, and text from images, AI chat with your notes as context, End-to-end encrypted private notes, Instant sync between iPhone and Mac, Automatic tag and title generation, Search text within images

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ContextorAI | $9.99 | per month |
| ContextorAI | $19.99 | per month |
| ContextorAI | $79.99 | per year |
| ContextorAI Pro | $149.99 | per year |


## Frequently asked questions

### Is Piggy Knowledge free?

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

### Is ContextorAI free?

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

### Do Piggy Knowledge or ContextorAI have ads?

Neither Piggy Knowledge nor ContextorAI shows ads.

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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.*