# Zip Flow vs HydroValve

The clearest difference is ads: Zip Flow at none against HydroValve's shown. HydroValve's advantage is update cadence (daily vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Zip Flow sells 4 one-off in-app purchases and HydroValve sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Zip Flow ships an update monthly, HydroValve daily. The most recent releases landed on October 28, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Zip Flow | HydroValve |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Daily** |
| Size | 47 MB | 63 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hartvig Solutions](https://appshunter.io/developer/1648526463) | [AbsoluteNoobStudio](https://appshunter.io/developer/1896690388) |

## What reviewers say

### Zip Flow

[App page](https://appshunter.io/ios/app/zip-flow-puzzle-game/id6759493683)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Hints | $0.99 | one-time |
| 50 Hints | $2.99 | one-time |
| Unlock Full Game | $4.99 | one-time |
| 100 Hints | $4.99 | one-time |


### HydroValve

[App page](https://appshunter.io/ios/app/hydrovalve/id6808785143)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Zip Flow free?

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

### Is HydroValve free?

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

### Do Zip Flow or HydroValve have ads?

HydroValve shows ads; Zip Flow does not.

### Which is updated more often, Zip Flow or HydroValve?

Zip Flow ships an update monthly, and HydroValve daily. Most recently, Zip Flow was updated on October 28, 2026 and HydroValve on October 9, 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.*