# Exponential Growth Decay PRO vs Multilingue

The clearest difference is price: Multilingue at Free against Exponential Growth Decay PRO's $1.99. Multilingue also leads on update cadence (every 4 days vs monthly) and iOS requirement (13.0 vs 15.0). Exponential Growth Decay PRO's advantage is in-app purchases (none vs 1). On review sentiment, ads and device support there is nothing between them.

Multilingue is free to download; Exponential Growth Decay PRO costs $1.99 up front. Multilingue sells 1 one-off in-app purchase. Exponential Growth Decay PRO asks for nothing beyond the download.

Exponential Growth Decay PRO ships an update monthly, Multilingue every 4 days. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Exponential Growth Decay PRO | Multilingue |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.9 (15 ratings)](https://appshunter.io/ios/app/multilingue-learn-languages/id6474153926/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 180 MB | 20 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Devpool](https://appshunter.io/developer/945885126) |

## What reviewers say

### Exponential Growth Decay PRO

[App page](https://appshunter.io/ios/app/exponential-growth-decay-pro/id1662901853)

Calculate future values using exponential growth and decay functions. Input starting and resulting values, growth factor, rate, or percentage to find missing variables. Visualize results with graphs and infographics, with step-by-step solutions.

**Highlights:** Calculate growth factor, rate, or percentage, Step-by-step solution display, Graph visualization of functions, Infographic parameter explanation, History of calculations, Support for decimals, fractions, and negative values

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

**In-app purchases:** none


### Multilingue

[App page](https://appshunter.io/ios/app/multilingue-learn-languages/id6474153926)

This app offers an interactive way to learn vocabulary across 30 thematic categories, from basic words to specialized conversations. It includes pronunciation guides and personalized progress tracking to help users speak confidently in new languages.

**Highlights:** 30 thematic learning categories, Interactive exercises and quizzes, Authentic pronunciation guides, Personalized progress tracking, Basic vocabulary acquisition

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multilingue+ | $3.99 | one-time |


## Frequently asked questions

### Is Exponential Growth Decay PRO free?

Exponential Growth Decay PRO costs $1.99, with no in-app purchases.

### Is Multilingue free?

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

### Do Exponential Growth Decay PRO or Multilingue have ads?

Neither Exponential Growth Decay PRO nor Multilingue shows ads.

### Which is updated more often, Exponential Growth Decay PRO or Multilingue?

Exponential Growth Decay PRO ships an update monthly, and Multilingue every 4 days. Most recently, Exponential Growth Decay PRO was updated on October 2, 2026 and Multilingue on October 11, 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.*