# RuGrammar vs Ruspectra

The clearest difference is in-app purchases: Ruspectra at none against RuGrammar's 2. RuGrammar's advantage is iOS requirement (12.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. RuGrammar sells 2 in-app purchases, starting at $4.99 per 7 days. Ruspectra asks for nothing beyond the download.

RuGrammar ships an update every 4 days, Ruspectra every 6 days. Both last shipped on September 10, 2026.

## The numbers

| Metric | RuGrammar | Ruspectra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 6 days |
| Size | 55 MB | 45 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TIMOTHEE JEAN LEGER ESPERANDIEU](https://appshunter.io/developer/1826412521) | [Hidenori Ishiii](https://appshunter.io/developer/1440959870) |

## What reviewers say

### RuGrammar

[App page](https://appshunter.io/ios/app/rugrammar/id6748586217)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per 7 days |
| Premium Yearly | $39.99 | per year |


### Ruspectra

[App page](https://appshunter.io/ios/app/ruspectra/id6749314898)

**In-app purchases:** none


## Frequently asked questions

### Is RuGrammar free?

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

### Is Ruspectra free?

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

### Do RuGrammar or Ruspectra have ads?

Neither RuGrammar nor Ruspectra shows ads.

### Which is updated more often, RuGrammar or Ruspectra?

RuGrammar ships an update every 4 days, and Ruspectra every 6 days. Most recently, RuGrammar was updated on September 10, 2026 and Ruspectra on September 10, 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.*