# Montessori Visual Cards vs Inverse Proportion

The clearest difference is in-app purchases: Inverse Proportion at none against Montessori Visual Cards's 2. Inverse Proportion also leads on iOS requirement (12.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Montessori Visual Cards sells 2 in-app purchases, starting at $2.99 per month. Inverse Proportion asks for nothing beyond the download.

## The numbers

| Metric | Montessori Visual Cards | Inverse Proportion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/montessori-visual-cards/id6475199552/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 101 MB | 32 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lanse](https://appshunter.io/developer/1663359867) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Montessori Visual Cards

[App page](https://appshunter.io/ios/app/montessori-visual-cards/id6475199552)

This app provides a collection of visual cards designed to support early childhood development through the Montessori approach. It aims to enhance visual acuity, cognitive skills, concentration, language acquisition, and sensory development in babies and young children.

**Highlights:** Stimulates visual development with high-contrast cards, Enhances cognitive skills for shape and object recognition, Promotes concentration and focus, Aids language development through word-image association, Fosters sensory development with varied patterns, Interactive caregiver-baby learning experience, Adaptable to baby's developmental stages

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $17.99 | per year |


### Inverse Proportion

[App page](https://appshunter.io/ios/app/inverse-proportion/id6736589300)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Montessori Visual Cards free?

Montessori Visual Cards is free to download, with in-app purchases available.

### Is Inverse Proportion free?

Inverse Proportion is free to download, with no in-app purchases.

### Do Montessori Visual Cards or Inverse Proportion have ads?

Neither Montessori Visual Cards nor Inverse Proportion 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.*