# Simple vs Structree

The clearest difference is in-app purchases: Simple at none against Structree's 2. Simple also leads on ads (none vs shown). Structree's advantage is update cadence (every 5 days vs every 6 weeks) and iOS requirement (13.0 vs 18.6). On price and device support there is nothing between them.

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

Simple ships an update every 6 weeks, Structree every 5 days. The most recent releases landed on September 5, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Simple | Structree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/simple-project-organizer/id6754777255/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 8 MB | 28 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [seth k](https://appshunter.io/developer/1849987153) | [Yuichi Sato](https://appshunter.io/developer/1894470170) |

## What reviewers say

### Simple

[App page](https://appshunter.io/ios/app/simple-project-organizer/id6754777255)

Organize projects and tasks with a visual mind-map interface. Break down complex tasks into sub-projects for a clear overview. This app combines mind-mapping with task management for intuitive project planning.

**Highlights:** Visual project overview, Task and deadline management, Sub-project creation, Mind-map interface, Intuitive organization

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

**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 Simple free?

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

### Is Structree free?

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

### Do Simple or Structree have ads?

Structree shows ads; Simple does not.

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

Simple ships an update every 6 weeks, and Structree every 5 days. Most recently, Simple was updated on September 5, 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.*