# Lekh vs BasicATTCalc

The clearest difference is price: Lekh at Free against BasicATTCalc's $1.99. Lekh also leads on update cadence (fortnightly vs every 29 months). BasicATTCalc's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Lekh is free to download; BasicATTCalc costs $1.99 up front. Lekh sells 2 in-app purchases, starting at $3.99 per month. BasicATTCalc asks for nothing beyond the download.

Lekh ships an update fortnightly, BasicATTCalc every 29 months. The most recent releases landed on September 30, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Lekh | BasicATTCalc |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.2 (15 ratings)](https://appshunter.io/ios/app/lekh-whiteboard-and-diagramming/id576124115/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 71.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 29 months |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 7 MB |
| Requires iOS | **13.4** | 14.5 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LEKHAPP LLC](https://appshunter.io/developer/1536055784) | [TAKAHIKO FUKUYAMA](https://appshunter.io/developer/857468511) |

## What reviewers say

### Lekh

[App page](https://appshunter.io/ios/app/lekh-whiteboard-and-diagramming/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 |


### BasicATTCalc

[App page](https://appshunter.io/ios/app/basicattcalc/id947238679)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lekh free?

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

### Is BasicATTCalc free?

BasicATTCalc costs $1.99, with no in-app purchases.

### Do Lekh or BasicATTCalc have ads?

Neither Lekh nor BasicATTCalc shows ads.

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

Lekh ships an update fortnightly, and BasicATTCalc every 29 months. Most recently, Lekh was updated on September 30, 2026 and BasicATTCalc on September 20, 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.*