# Lambda calculus vs DELE Spanish Exam Prep

The clearest difference is rating: DELE Spanish Exam Prep at 4.5 against Lambda calculus's 2.5. Lambda calculus's advantage is in-app purchases (none vs 3). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. DELE Spanish Exam Prep sells 3 in-app purchases, starting at $2.49 per 7 days. Lambda calculus asks for nothing beyond the download.

DELE Spanish Exam Prep holds the better App Store score, 4.5 against 2.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

## The numbers

| Metric | Lambda calculus | DELE Spanish Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/lambda-calculus/id6737766234/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/dele-spanish-exam-prep/id6739956171/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 41 MB |
| Requires iOS | **16.0** | 17 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Ea Hang Khov](https://appshunter.io/developer/1703171105) |

## What reviewers say

### 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


### DELE Spanish Exam Prep

[App page](https://appshunter.io/ios/app/dele-spanish-exam-prep/id6739956171)

Prepare for the official Spanish proficiency exam with structured practice for all six levels. Improve reading, listening, vocabulary, and grammar with interactive exercises and detailed explanations. Designed to build confidence for exam day.

**Highlights:** Reading practice (A1-C2), Listening practice (A1-C2), Vocabulary lists by level, Interactive quizzes, Translation support, Grammar focus, Study Reminder Tool

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $2.49 | per 7 days |
| Monthly Plan | $4.99 | per month |
| Yearly Plan | $29.99 | per year |


## Frequently asked questions

### Is Lambda calculus free?

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

### Is DELE Spanish Exam Prep free?

DELE Spanish Exam Prep is free to download, with in-app purchases available.

### Which has better reviews, Lambda calculus or DELE Spanish Exam Prep?

DELE Spanish Exam Prep is rated higher. Lambda calculus averages 2.5 out of 5 from 2 ratings, while DELE Spanish Exam Prep averages 4.5 from 2 ratings.

### Do Lambda calculus or DELE Spanish Exam Prep have ads?

Neither Lambda calculus nor DELE Spanish Exam Prep 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.*