# DOWO Flow vs Ventsys

DOWO Flow and Ventsys are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

DOWO Flow ships an update every 5 weeks, Ventsys every 2 months. The most recent releases landed on May 20, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | DOWO Flow | Ventsys |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 94 MB | 37 MB |
| Requires iOS | 16.1 | 16.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DOWO Digital](https://appshunter.io/developer/1447623342) | [Ventsys Ltd](https://appshunter.io/developer/1531488719) |

## What reviewers say

### DOWO Flow

[App page](https://appshunter.io/ios/app/dowo-flow/id1447623343)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ventsys

[App page](https://appshunter.io/ios/app/ventsys/id1531488717)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DOWO Flow free?

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

### Is Ventsys free?

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

### Do DOWO Flow or Ventsys have ads?

Neither DOWO Flow nor Ventsys shows ads.

### Which is updated more often, DOWO Flow or Ventsys?

DOWO Flow ships an update every 5 weeks, and Ventsys every 2 months. Most recently, DOWO Flow was updated on May 20, 2026 and Ventsys on September 19, 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.*