# BigBrainAi vs Vector Flow

The clearest difference is in-app purchases: Vector Flow at none against BigBrainAi's 3. Vector Flow also leads on update cadence (every 3 days vs every 5 months). BigBrainAi's advantage is ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. BigBrainAi sells 3 in-app purchases, starting at $0.99 per 7 days. Vector Flow asks for nothing beyond the download.

BigBrainAi ships an update every 5 months, Vector Flow every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BigBrainAi | Vector Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 3 days** |
| Size | 56 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Joris Bruchet](https://appshunter.io/developer/1786153650) | [Simple Fun Software LP](https://appshunter.io/developer/1504976627) |

## What reviewers say

### BigBrainAi

[App page](https://appshunter.io/ios/app/bigbrainai/id6739582966)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Super+ Weekly Subscription | $0.99 | per 7 days |
| Super+ Monthly Subscription | $1.99 | per month |
| Super+ yearly Subscription | $19.99 | per year |


### Vector Flow

[App page](https://appshunter.io/ios/app/vector-flow-circuit-logic/id6778104944)

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

**In-app purchases:** none


## Frequently asked questions

### Is BigBrainAi free?

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

### Is Vector Flow free?

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

### Do BigBrainAi or Vector Flow have ads?

Vector Flow shows ads; BigBrainAi does not.

### Which is updated more often, BigBrainAi or Vector Flow?

BigBrainAi ships an update every 5 months, and Vector Flow every 3 days. Most recently, BigBrainAi was updated on October 25, 2026 and Vector Flow on October 24, 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.*