# Complex Map vs Lambda calculus

The clearest difference is rating: Complex Map at 5.0 against Lambda calculus's 2.5. Complex Map also leads on iOS requirement (7.1 vs 16.0). Lambda calculus's advantage is in-app purchases (none vs 1). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Complex Map sells 1 one-off in-app purchase. Lambda calculus asks for nothing beyond the download.

Complex Map holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | Complex Map | Lambda calculus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/complex-map/id827104452/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/lambda-calculus/id6737766234/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 5 MB |
| Requires iOS | **7.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TinkaTinka](https://appshunter.io/developer/505803809) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### Complex Map

[App page](https://appshunter.io/ios/app/complex-map/id827104452)

This app visualizes complex variable functions by transforming images mapped to the complex plane. It allows users to import their own images or use predefined ones, and export the results.

**Highlights:** Complex function parser, Predefined and custom image import, Image export and sharing, Supports standard functions and constants

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Lambda calculus

[App page](https://appshunter.io/ios/app/lambda-calculus/id6737766234)

Learn the fundamentals of lambda calculus with this educational application. Gain a basic understanding of this important mathematical concept through an introductory experience.

**Highlights:** Introduction to lambda calculus, Basic understanding of concepts, Educational content

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Complex Map free?

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

### Is Lambda calculus free?

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

### Which has better reviews, Complex Map or Lambda calculus?

Complex Map is rated higher. Complex Map averages 5.0 out of 5 from 3 ratings, while Lambda calculus averages 2.5 from 2 ratings.

### Do Complex Map or Lambda calculus have ads?

Neither Complex Map nor Lambda calculus shows ads.

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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.*