# Smart Russian Dictionary vs OCTAR

The clearest difference is in-app purchases: OCTAR at none against Smart Russian Dictionary's 5. OCTAR also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 7 months). On price and device support there is nothing between them.

Both are free to download. Smart Russian Dictionary sells 5 in-app purchases, starting at $0.99 per month. OCTAR asks for nothing beyond the download.

Smart Russian Dictionary ships an update every 7 months, OCTAR every 2 weeks. The most recent releases landed on October 14, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Smart Russian Dictionary | OCTAR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Size | 62 MB | 179 MB |
| Requires iOS | 17 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Md Shihab Uddin](https://appshunter.io/developer/1602142430) | [Fitouh Khalifa](https://appshunter.io/developer/1767222725) |

## What reviewers say

### Smart Russian Dictionary

[App page](https://appshunter.io/ios/app/smart-russian-dictionary/id1606885014)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads for a month | $0.99 | per month |
| Remove ads for 2 months | $1.99 | per 2 months |
| Remove ads for 3 months | $2.99 | per 3 months |
| Remove ads for 6 months | $3.99 | per 6 months |
| Remove ads for a year | $5.99 | per year |


### OCTAR

[App page](https://appshunter.io/ios/app/octar-3d-ar-coloring/id6670721486)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Russian Dictionary free?

Smart Russian Dictionary is free to download, with in-app purchases available.

### Is OCTAR free?

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

### Do Smart Russian Dictionary or OCTAR have ads?

Smart Russian Dictionary shows ads; OCTAR does not.

### Which is updated more often, Smart Russian Dictionary or OCTAR?

Smart Russian Dictionary ships an update every 7 months, and OCTAR every 2 weeks. Most recently, Smart Russian Dictionary was updated on October 14, 2026 and OCTAR on October 27, 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.*