# Stack 'n' Fit vs Voltline

The clearest difference is ads: Voltline at none against Stack 'n' Fit's shown. Stack 'n' Fit's advantage is iOS requirement (12.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Stack 'n' Fit sells 5 one-off in-app purchases and Voltline sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Stack 'n' Fit | Voltline |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | — |
| Size | 102 MB | 4 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roman Bogdziievych](https://appshunter.io/developer/1448873348) | [Anguished LLC](https://appshunter.io/developer/6783188455) |

## What reviewers say

### Stack 'n' Fit

[App page](https://appshunter.io/ios/app/stack-n-fit/id6477820126)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |
| Small pack of gems | $0.99 | one-time |
| Medium pack of gems | $1.99 | one-time |
| Large pack of gems | $3.99 | one-time |
| Huge pack of gems | $8.99 | one-time |


### Voltline

[App page](https://appshunter.io/ios/app/voltline-color-block-surge/id6785609271)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nice Tip | $0.99 | one-time |
| Big Tip | $2.99 | one-time |
| Huge Tip | $4.99 | one-time |


## Frequently asked questions

### Is Stack 'n' Fit free?

Stack 'n' Fit is free to download, with in-app purchases available.

### Is Voltline free?

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

### Do Stack 'n' Fit or Voltline have ads?

Stack 'n' Fit shows ads; Voltline does not.

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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.*