# SecondBrain AI Assistant vs Loop Engineering Ai

The clearest difference is ads: SecondBrain AI Assistant at none against Loop Engineering Ai's shown. SecondBrain AI Assistant also leads on update cadence (daily vs weekly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. SecondBrain AI Assistant sells 2 in-app purchases, starting at $9.99 per month and Loop Engineering Ai sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

SecondBrain AI Assistant ships an update daily, Loop Engineering Ai weekly. The most recent releases landed on September 13, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | SecondBrain AI Assistant | Loop Engineering Ai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Weekly |
| Size | 22 MB | 63 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BUILD TO CONNECT LTD](https://appshunter.io/developer/6778076361) | [Hamza khan](https://appshunter.io/developer/6783310834) |

## What reviewers say

### SecondBrain AI Assistant

[App page](https://appshunter.io/ios/app/secondbrain-ai-assistant/id6778076359)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Second Brain Pro Monthly | $9.99 | per month |
| Second Brain Pro Annual | $69.99 | per year |


### Loop Engineering Ai

[App page](https://appshunter.io/ios/app/loop-engineering-ai-workflow/id6785467171)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Loop Engineering Pro Monthly | $3.99 | per month |
| Loop Engineering Pro Yearly | $24.99 | per year |
| Loop Engineering Lifetime Pro | $44.99 | one-time |


## Frequently asked questions

### Is SecondBrain AI Assistant free?

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

### Is Loop Engineering Ai free?

Loop Engineering Ai is free to download, with in-app purchases available.

### Do SecondBrain AI Assistant or Loop Engineering Ai have ads?

Loop Engineering Ai shows ads; SecondBrain AI Assistant does not.

### Which is updated more often, SecondBrain AI Assistant or Loop Engineering Ai?

SecondBrain AI Assistant ships an update daily, and Loop Engineering Ai weekly. Most recently, SecondBrain AI Assistant was updated on September 13, 2026 and Loop Engineering Ai on September 8, 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.*