# Grammobolica vs Oki

The clearest difference is rating: Grammobolica at 5.0 against Oki's 4.4. Grammobolica also leads on review sentiment (100% vs 64%) and iOS requirement (15.5 vs 17.0). Oki's advantage is ratings volume (392 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Grammobolica sells 5 in-app purchases, starting at $1.99 per 7 days and Oki sells 11 in-app purchases, starting at $1.00 per month. Whichever you choose, the download price is not the number that matters.

Grammobolica holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Oki has 392 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Grammobolica's written reviews are positive against 64% of Oki's.

Grammobolica ships an update weekly, Oki every 4 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Grammobolica | Oki |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grammobolica-grammar-drills/id6745759890/reviews)** | [4.4 (392 ratings)](https://appshunter.io/ios/app/oki-language-learning/id6748310130/reviews) |
| Number of ratings | 1 | **392** |
| Positive reviews | **100.0% of reviews** | 63.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 155 MB | 98 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Evgenii Dadonov](https://appshunter.io/developer/1813730365) | [Alidar Kuchukov](https://appshunter.io/developer/1892225290) |

## What reviewers say

### Grammobolica

[App page](https://appshunter.io/ios/app/grammobolica-grammar-drills/id6745759890)

This app offers daily language practice for adults who want to improve their speaking skills. It focuses on translating sentences aloud, building vocabulary, and using grammar in context. Track your progress with a built-in study planner and access full grammar courses from A1 to B2.

**Highlights:** Daily speaking drills, Voice translation and pronunciation check, Vocabulary building with SRS, Grammar theory and hints, Structured A1-B2 grammar courses, Study planner for progress tracking

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $1.99 | per 7 days |
| Monthly Plan | $6.99 | per month |
| Month (Diligent Student) | $6.99 | per month |
| Yearly Plan | $34.99 | per year |
| Year (Diligent Student) | $34.99 | per year |


### Oki

[App page](https://appshunter.io/ios/app/oki-language-learning/id6748310130)

Learn English with personalized lessons, speaking and writing practice, and detailed feedback from an AI coach. Create flashcards and track your progress across all language skills. This app offers a comprehensive approach to mastering English.

**Highlights:** Personalized lessons based on interests, Speaking and writing practice, Detailed feedback on mistakes, AI coach for real-time conversation, Flashcard creation, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oki Promotion Monthly | $1.00 | per month |
| Oki Premium 80% Off Discount | $1.99 | per month |
| Oki Pro Monthly 50% Off | $2.99 | per month |
| Oki Premium 50% off Discount | $4.99 | per month |
| Oki Pro Monthly | $5.99 | per month |
| Oki Pro | $9.99 | per month |
| Aleem Monthly | $9.99 | per month |
| Oki Promotion Annual | $10.00 | per year |
| Oki Pro Annual | $29.99 | per year |
| Oki Annual | $88.00 | per year |
| Aleem Annual | $88.00 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Engaging learning experience
- 💡 Innovative AI-powered features
- 🔥 Effective for improving English skills

**What reviewers complain about**

- 🐛 Registration issues
- ⚠️ Limited functionality without registration

**Reported bugs**

- Registration process not working properly

**Requested features**

- Ability to register through third-party accounts
- More language learning options


## Frequently asked questions

### Is Grammobolica free?

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

### Is Oki free?

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

### Which has better reviews, Grammobolica or Oki?

Grammobolica is rated higher. Grammobolica averages 5.0 out of 5 from 1 ratings, while Oki averages 4.4 from 392 ratings.

### Do Grammobolica or Oki have ads?

Neither Grammobolica nor Oki shows ads.

### Which is updated more often, Grammobolica or Oki?

Grammobolica ships an update weekly, and Oki every 4 days. Most recently, Grammobolica was updated on October 25, 2026 and Oki on October 28, 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.*