# Lekh vs ThinkSpace

Lekh and ThinkSpace both sit at 4.2 stars, but that hides the real split: 72% of Lekh's written reviews are positive against 54% of ThinkSpace's. Lekh also leads on update cadence (fortnightly vs every 6 weeks) and iOS requirement (13.4 vs 15.6). ThinkSpace's advantage is ratings volume (276 vs 15). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Lekh sells 2 in-app purchases, starting at $3.99 per month and ThinkSpace sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.2 for Lekh against 4.3 for ThinkSpace. That said, the two scores are not equally well evidenced: ThinkSpace has 276 ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 72% of Lekh's written reviews are positive against 54% of ThinkSpace's.

Lekh ships an update fortnightly, ThinkSpace every 6 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Lekh | ThinkSpace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (15 ratings)](https://appshunter.io/ios/app/lekh-diagram-and-flowchart-app/id576124115/reviews) | **[4.3 (276 ratings)](https://appshunter.io/ios/app/thinkspace-mind-map-and-notes/id1335574515/reviews)** |
| Number of ratings | 15 | **276** |
| Positive reviews | **71.9% of reviews** | 53.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 261 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 17+ |
| Developer | [LEKHAPP LLC](https://appshunter.io/developer/1536055784) | [Naoya Enokida](https://appshunter.io/developer/583844490) |

## What reviewers say

### Lekh

[App page](https://appshunter.io/ios/app/lekh-diagram-and-flowchart-app/id576124115)

This app provides an infinite canvas for freehand drawing and creating various diagrams. It intelligently converts sketches into precise shapes and connections, supporting a wide range of diagram types for business, design, and planning.

**Highlights:** Infinite canvas for drawing, Smart diagram and flowchart creation, Layout and inspection report drawing, Swimlane and business process mapping, Rapid UI wireframing, Support for numerous diagram types, Online and offline modes

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lekh Premium for one month | $3.99 | per month |
| Lekh Premium for one year | $34.99 | per year |


### 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


## Frequently asked questions

### Is Lekh free?

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

### Is ThinkSpace free?

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

### Which has better reviews, Lekh or ThinkSpace?

ThinkSpace is rated higher. Lekh averages 4.2 out of 5 from 15 ratings, while ThinkSpace averages 4.3 from 276 ratings.

### Do Lekh or ThinkSpace have ads?

Neither Lekh nor ThinkSpace shows ads.

### Which is updated more often, Lekh or ThinkSpace?

Lekh ships an update fortnightly, and ThinkSpace every 6 weeks. Most recently, Lekh was updated on October 24, 2026 and ThinkSpace on October 24, 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.*