# Stackbox vs Only One Thing

The clearest difference is ads: Stackbox at none against Only One Thing's shown. Stackbox also leads on update cadence (every 4 days vs every 9 days). Only One Thing's advantage is iOS requirement (15.1 vs 18.0). 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 Only One Thing sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Stackbox ships an update every 4 days, Only One Thing every 9 days. The most recent releases landed on October 10, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Stackbox | Only One Thing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 9 days |
| Size | 33 MB | 101 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YunJae Jeong](https://appshunter.io/developer/1568287924) | [Gyuseop Park](https://appshunter.io/developer/1884791422) |

## 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 |


### Only One Thing

[App page](https://appshunter.io/ios/app/only-one-thing-focus-daily/id6763843169)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Ownership of Pro Version | $4.99 | one-time |


## Frequently asked questions

### Is Stackbox free?

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

### Is Only One Thing free?

Only One Thing is free to download, with in-app purchases available.

### Do Stackbox or Only One Thing have ads?

Only One Thing shows ads; Stackbox does not.

### Which is updated more often, Stackbox or Only One Thing?

Stackbox ships an update every 4 days, and Only One Thing every 9 days. Most recently, Stackbox was updated on October 10, 2026 and Only One Thing on September 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*