# Q vs ACIN VentiFlow

The clearest difference is iOS requirement: Q at 11.0 against ACIN VentiFlow's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Q ships an update every 4 months, ACIN VentiFlow every 2 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Q | ACIN VentiFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 26 MB | 14 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BUVA](https://appshunter.io/developer/1304938879) | [7Lab](https://appshunter.io/developer/868707119) |

## What reviewers say

### Q

[App page](https://appshunter.io/ios/app/q-stream/id1304938880)

**Features:** macOS Compatibility

**In-app purchases:** none


### ACIN VentiFlow

[App page](https://appshunter.io/ios/app/acin-ventiflow/id1577737062)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Q free?

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

### Is ACIN VentiFlow free?

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

### Do Q or ACIN VentiFlow have ads?

Neither Q nor ACIN VentiFlow shows ads.

### Which is updated more often, Q or ACIN VentiFlow?

Q ships an update every 4 months, and ACIN VentiFlow every 2 months. Most recently, Q was updated on October 26, 2026 and ACIN VentiFlow on October 27, 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.*