# Stackbox vs CarPin

The clearest difference is ads: Stackbox at none against CarPin's shown. Stackbox also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (18.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Stackbox sells 2 in-app purchases, starting at $1.99 per month and CarPin sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Stackbox ships an update every 4 days, CarPin every 2 months. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Stackbox | CarPin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 2 months |
| Size | 33 MB | 11 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [YunJae Jeong](https://appshunter.io/developer/1568287924) | [VyxWorks](https://appshunter.io/developer/1180399771) |

## What reviewers say

### Stackbox

[App page](https://appshunter.io/ios/app/stackbox-rss-reader/id6758572761)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $1.99 | per month |
| Yearly Plan | $19.99 | per year |


### CarPin

[App page](https://appshunter.io/ios/app/carpin/id6761619520)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sunset Drive Theme | $1.99 | one-time |
| Candy Pastel Theme | $1.99 | one-time |
| Forest Camp Theme | $1.99 | one-time |
| Ocean Blue Theme | $1.99 | one-time |
| Gold Luxury Theme | $1.99 | one-time |
| Cyberpunk theme | $1.99 | one-time |
| Mono Clean Theme | $1.99 | one-time |
| Imperial Red Theme | $1.99 | one-time |
| Theme All Access | $8.99 | one-time |


## Frequently asked questions

### Is Stackbox free?

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

### Is CarPin free?

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

### Do Stackbox or CarPin have ads?

CarPin shows ads; Stackbox does not.

### Which is updated more often, Stackbox or CarPin?

Stackbox ships an update every 4 days, and CarPin every 2 months. Most recently, Stackbox was updated on September 24, 2026 and CarPin on September 23, 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.*