# 1 vs Structree

The clearest difference is in-app purchases: 1 at none against Structree's 2. 1 also leads on ads (none vs shown) and update cadence (daily vs every 5 days). Structree's advantage is iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Structree sells 2 one-off in-app purchases. 1 asks for nothing beyond the download.

1 ships an update daily, Structree every 5 days. The most recent releases landed on September 11, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 1 | Structree |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 5 days |
| Size | 66 MB | 28 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SB Leaderboard](https://appshunter.io/developer/1716992069) | [Yuichi Sato](https://appshunter.io/developer/1894470170) |

## What reviewers say

### 1

[App page](https://appshunter.io/ios/app/1-day-todo/id6746479405)

**Features:** macOS Compatibility

**In-app purchases:** none


### Structree

[App page](https://appshunter.io/ios/app/structree/id6769936533)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |
| Pro Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is 1 free?

1 is free to download, with no in-app purchases.

### Is Structree free?

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

### Do 1 or Structree have ads?

Structree shows ads; 1 does not.

### Which is updated more often, 1 or Structree?

1 ships an update daily, and Structree every 5 days. Most recently, 1 was updated on September 11, 2026 and Structree on September 21, 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.*