# ThinkSpace vs Touch Annotator

The clearest difference is price: ThinkSpace at Free against Touch Annotator's $5.99. ThinkSpace also leads on rating (4.3 vs 1.0) and ratings volume (273 vs 1). Touch Annotator's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.6). On review sentiment, update cadence, ads and device support there is nothing between them.

ThinkSpace is free to download; Touch Annotator costs $5.99 up front. ThinkSpace sells 2 in-app purchases, starting at $2.99 per month. Touch Annotator asks for nothing beyond the download.

ThinkSpace holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: ThinkSpace has 273 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 54% of ThinkSpace's written reviews are positive against 60% of Touch Annotator's, so the app with the better star average is not the one people write more warmly about.

ThinkSpace ships an update monthly, Touch Annotator every 3 weeks. The most recent releases landed on September 19, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | ThinkSpace | Touch Annotator |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[4.3 (273 ratings)](https://appshunter.io/ios/app/thinkspace-mind-map-and-notes/id1335574515/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/touch-annotator/id1478864595/reviews) |
| Number of ratings | **273** | 1 |
| Positive reviews | 53.6% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 238 MB | 8 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Naoya Enokida](https://appshunter.io/developer/583844490) | [Intersection Bioscientific Software Inc.](https://appshunter.io/developer/1421897682) |

## What reviewers say

### ThinkSpace

[App page](https://appshunter.io/ios/app/thinkspace-mind-map-and-notes/id1335574515)

This app is a powerful thinking tool that supports creative workflows with an intuitive interface and various thinking methods. It offers features like handwritten notes, unlimited canvases, idea generation frameworks, and real-time collaboration to aid brainstorming and idea structuring.

**Highlights:** Handwritten sticky notes, Unlimited canvas sizes, Idea generation frameworks, Real-time sharing, Mind mapping, Diagram creation, AI brainstorming

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThinkSpace Pro Access | $2.99 | per month |
| ThinkSpace Pro Access | $29.99 | per year |

**What reviewers like**

- 💡 Innovative freeform mind-mapping with infinite canvas
- ✏️ Excellent Apple Pencil integration and handwriting support
- 🎨 Flexible and creative brainstorming capabilities
- 📋 Multiple thinking frameworks and templates included
- 👍 Intuitive sticky note-like interface

**What reviewers complain about**

- 🐛 Frequent crashes and app freezing
- ⚠️ Data loss issues after subscription or app updates
- 💸 Aggressive paywall with limited free tier
- 🔒 Privacy concerns with data collection policies
- 😕 Steep learning curve and unintuitive UI

**Reported bugs**

- App crashes on launch or during use
- Data disappears after upgrading to paid version
- Canvas fails to load with many items
- Text boxes become uneditable
- Grouped items move unexpectedly when resizing

**Requested features**

- One-time purchase option instead of subscription
- Dark mode theme
- Better palm rejection for Apple Pencil
- Folder/project organization system
- Ability to delete canvases easily


### Touch Annotator

[App page](https://appshunter.io/ios/app/touch-annotator/id1478864595)

This tool simplifies image annotation for object detection tasks. It automatically handles annotation formatting and offers intuitive controls for managing bounding boxes and labels. Choose from multiple export formats to seamlessly integrate with various machine learning frameworks.

**Highlights:** Automatic annotation formatting, Delete bounding boxes by holding, Rename labels and update all boxes, Select label by tapping a bounding box, Multiple export formats (Create ML, Turi Create, CSV), Request new format options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ThinkSpace free?

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

### Is Touch Annotator free?

Touch Annotator costs $5.99, with no in-app purchases.

### Which has better reviews, ThinkSpace or Touch Annotator?

ThinkSpace is rated higher. ThinkSpace averages 4.3 out of 5 from 273 ratings, while Touch Annotator averages 1.0 from 1 ratings.

### Do ThinkSpace or Touch Annotator have ads?

Neither ThinkSpace nor Touch Annotator shows ads.

### Which is updated more often, ThinkSpace or Touch Annotator?

ThinkSpace ships an update monthly, and Touch Annotator every 3 weeks. Most recently, ThinkSpace was updated on September 19, 2026 and Touch Annotator on June 10, 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.*