# Symposium AI vs SmartStack

The clearest difference is in-app purchases: SmartStack at none against Symposium AI's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Symposium AI sells 3 in-app purchases, starting at $5.99 per month. SmartStack asks for nothing beyond the download.

Symposium AI ships an update every 8 days, SmartStack every 4 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Symposium AI | SmartStack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Size | 67 MB | 62 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Braveheart Innovations LLC](https://appshunter.io/developer/1833679535) | [Nathan Mills](https://appshunter.io/developer/1836538032) |

## What reviewers say

### Symposium AI

[App page](https://appshunter.io/ios/app/symposium-ai/id6751146458)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $5.99 | per month |
| Symposium AI Premium Annual | $49.99 | per year |
| Symposium AI Premium (Lifetime) | $129.99 | one-time |


### SmartStack

[App page](https://appshunter.io/ios/app/smartstack/id6753078612)

**In-app purchases:** none


## Frequently asked questions

### Is Symposium AI free?

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

### Is SmartStack free?

SmartStack is free to download, with no in-app purchases.

### Do Symposium AI or SmartStack have ads?

Neither Symposium AI nor SmartStack shows ads.

### Which is updated more often, Symposium AI or SmartStack?

Symposium AI ships an update every 8 days, and SmartStack every 4 days. Most recently, Symposium AI was updated on October 7, 2026 and SmartStack on October 12, 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.*