# AI Notes vs opchat

The clearest difference is ads: opchat at none against AI Notes's shown. opchat also leads on update cadence (every 2 days vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. AI Notes sells 9 in-app purchases, starting at $1.99 per 7 days and opchat sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

AI Notes ships an update every 4 months, opchat every 2 days. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | AI Notes | opchat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/opchat-private-on-device-ai/id6761932211/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 53 MB | 63 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Pursharth Zutshi](https://appshunter.io/developer/1856952308) | [Przemyslaw Klosek](https://appshunter.io/developer/1536276533) |

## What reviewers say

### AI Notes

[App page](https://appshunter.io/ios/app/ai-notes-write-and-reply/id6757496314)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ai Notes Pro (Weekly) | $1.99 | per 7 days |
| Ai Notes Pro (Monthly) | $5.99 | per month |
| Ai Notes Lite Package | $0.99 | one-time |
| Ai Notes Power Package | $1.99 | one-time |
| Pro Pack | $2.99 | one-time |
| Ai Notes Elite Package | $3.99 | one-time |
| Ai Notes Ultimate Package | $5.99 | one-time |
| Ai Notes Mega Package | $9.99 | one-time |
| Ai Notes Supreme Package | $24.99 | one-time |


### opchat

[App page](https://appshunter.io/ios/app/opchat-private-on-device-ai/id6761932211)

Chat with various AI models using your own API keys or run them locally on your device. Your data and keys remain private, never passing through the app's servers. Create custom AI assistants and utilize built-in tools like web search and image generation.

**Highlights:** BYOK (Bring Your Own Keys) for major AI models, On-device model execution for offline use, Customizable AI personas, Integrated web search and image generation, Conversation organization and export, Fully customizable interface themes and fonts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock Promo | $1.99 | one-time |
| Pro Unlock | $4.99 | one-time |


## Frequently asked questions

### Is AI Notes free?

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

### Is opchat free?

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

### Do AI Notes or opchat have ads?

AI Notes shows ads; opchat does not.

### Which is updated more often, AI Notes or opchat?

AI Notes ships an update every 4 months, and opchat every 2 days. Most recently, AI Notes was updated on September 9, 2026 and opchat on September 10, 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.*