Simple vs Structree
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple
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.
- Visual project overview
- Task and deadline management
- Sub-project creation
- Mind-map interface
- Intuitive organization
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Understand your projects and workloads at a glance. Combine the simplicity of a mind-map with the organization of a task manager with Simple: Project Organizer. Create projects with tasks and deadlines. When tasks feel too complex to encapsulate it in a single line, make it into a sub-project instead. The final product will be a simple and easy to understand mind map that functions as a task manager at the same time.
Structree
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Structree is a simple app for organizing your thoughts into clear structures. Instead of keeping ideas as scattered notes, Structree helps you break them down into Worlds, Pyramids, Trees, and Nodes. Use it to organize projects, study topics, product ideas, personal plans, or any subject you want to understand more clearly. Create a World for a broad theme. Build Pyramids to shape your thinking. Use Trees to connect related ideas. Open Nodes to add detailed text and images. Structree is designed to stay simple. It focuses on structure, not complexity, so you can think clearly without being overwhelmed by too many features. Key features: - Organize ideas with Worlds, Pyramids, Trees, and Nodes - Add text blocks and images to Nodes - Search and reorder your structures - Keep your data on your device - Remove ads with an optional upgrade - Unlock larger limits with Pro Lifetime Structree is useful for: - Structured thinking - Idea organization - Study notes - Project planning - Product planning - Brainstorming - Personal knowledge organization If normal notes feel too flat, Structree gives your ideas a shape.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Simple | Structree |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | seth k | Yuichi Sato |
In-app purchases
Simple
No in-app purchases
Structree
- Remove Ads$4.99
- Pro Lifetime$14.99









