# Learn Immune System vs Учи с мен

The clearest difference is price: Learn Immune System at $2.99 against Учи с мен's $9.99. Learn Immune System also leads on iOS requirement (11.0 vs 15.1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Learn Immune System costs $2.99 and Учи с мен $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn Immune System ships an update every 36 months, Учи с мен every 21 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Learn Immune System | Учи с мен |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 21 months** |
| Monetization | — | Paid |
| Size | 16 MB | 65 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Nurten PIRLI](https://appshunter.io/developer/1495958705) | [Kaloyan Koravski](https://appshunter.io/developer/1576063017) |

## What reviewers say

### Learn Immune System

[App page](https://appshunter.io/ios/app/learn-immune-system/id1502997625)

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

**In-app purchases:** none


### Учи с мен

[App page](https://appshunter.io/ios/app/id1576063015)

This educational game helps children aged 2-7 learn Bulgarian letters, numbers, colors, and more through interactive activities and games. Designed with child psychology principles, it offers visual and auditory learning experiences to make education fun and effective.

**Highlights:** Learn Bulgarian letters (handwritten and printed), Learn numbers, Learn colors and shapes, Learn animals and emotions, Interactive writing practice, Reinforcement games

**In-app purchases:** none


## Frequently asked questions

### Is Learn Immune System free?

Learn Immune System costs $2.99, with no in-app purchases.

### Is Учи с мен free?

Учи с мен costs $9.99, with no in-app purchases.

### Do Learn Immune System or Учи с мен have ads?

Neither Learn Immune System nor Учи с мен shows ads.

### Which is updated more often, Learn Immune System or Учи с мен?

Learn Immune System ships an update every 36 months, and Учи с мен every 21 months. Most recently, Learn Immune System was updated on October 15, 2026 and Учи с мен on October 7, 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.*