# Subtraction with regrouping vs Russian Reading Steps Lite

The clearest difference is price: Russian Reading Steps Lite at Free against Subtraction with regrouping's $0.99. Russian Reading Steps Lite also leads on device support (3 vs 1). Subtraction with regrouping's advantage is in-app purchases (none vs 1). On update cadence, ads and iOS requirement there is nothing between them.

Russian Reading Steps Lite is free to download; Subtraction with regrouping costs $0.99 up front. Russian Reading Steps Lite sells 1 one-off in-app purchase. Subtraction with regrouping asks for nothing beyond the download.

Subtraction with regrouping ships an update every 41 months, Russian Reading Steps Lite every 38 months. The most recent releases landed on October 26, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Subtraction with regrouping | Russian Reading Steps Lite |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 38 months** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 91 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Red Hong](https://appshunter.io/developer/542314714) | [Sergey Rozovik](https://appshunter.io/developer/587833213) |

## What reviewers say

### Subtraction with regrouping

[App page](https://appshunter.io/ios/app/subtraction-with-regrouping/id838762880)

**Features:** macOS Compatibility

**In-app purchases:** none


### Russian Reading Steps Lite

[App page](https://appshunter.io/ios/app/russian-reading-steps-lite/id845128848)

This educational app helps children learn to read Russian through interactive exercises focusing on letter sounds, word recognition, and phonics. It covers the alphabet, consonants, vowels, and blends with engaging activities and pronunciation guides.

**Highlights:** Alphabet learning with interactive exercises, Phonics and word recognition activities, Consonant and vowel blend practice, Audio pronunciation for words, Personalize cards and record voice, Engaging practice activities

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Exercises Pack | $2.99 | one-time |


## Frequently asked questions

### Is Subtraction with regrouping free?

Subtraction with regrouping costs $0.99, with no in-app purchases.

### Is Russian Reading Steps Lite free?

Russian Reading Steps Lite is free to download, with in-app purchases available.

### Do Subtraction with regrouping or Russian Reading Steps Lite have ads?

Neither Subtraction with regrouping nor Russian Reading Steps Lite shows ads.

### Which is updated more often, Subtraction with regrouping or Russian Reading Steps Lite?

Subtraction with regrouping ships an update every 41 months, and Russian Reading Steps Lite every 38 months. Most recently, Subtraction with regrouping was updated on October 26, 2026 and Russian Reading Steps Lite on November 1, 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.*