# ZENITH PULSE vs Stack by Stack!

The clearest difference is in-app purchases: Stack by Stack! at none against ZENITH PULSE's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ZENITH PULSE sells 1 one-off in-app purchase. Stack by Stack! asks for nothing beyond the download.

## The numbers

| Metric | ZENITH PULSE | Stack by Stack! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | — | Every 4 days |
| Size | 23 MB | 94 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Purple Night Inc](https://appshunter.io/developer/1868378073) | [ByeongUk Choi](https://appshunter.io/developer/1872002178) |

## What reviewers say

### ZENITH PULSE

[App page](https://appshunter.io/ios/app/zenith-pulse/id6758048964)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisement | $5.99 | one-time |


### Stack by Stack!

[App page](https://appshunter.io/ios/app/stack-by-stack/id6760553499)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZENITH PULSE free?

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

### Is Stack by Stack! free?

Stack by Stack! is free to download, with no in-app purchases.

### Do ZENITH PULSE or Stack by Stack! have ads?

Both ZENITH PULSE and Stack by Stack! show ads.

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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.*