# Grammarize vs OBONSAIDO

The clearest difference is in-app purchases: OBONSAIDO at none against Grammarize's 2. Grammarize's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Grammarize sells 2 one-off in-app purchases. OBONSAIDO asks for nothing beyond the download.

## The numbers

| Metric | Grammarize | OBONSAIDO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (38 ratings)](https://appshunter.io/ios/app/grammarize/id905741784/reviews)** | — |
| Number of ratings | **38** | — |
| Positive reviews | 77.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 44 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleksii Polishchuk](https://appshunter.io/developer/905741787) | [The Members](https://appshunter.io/developer/1653824858) |

## What reviewers say

### Grammarize

[App page](https://appshunter.io/ios/app/grammarize/id905741784)

Master English grammar with this app, offering interactive lessons on irregular verbs and phrasal verbs. Earn rewards for progress and track your performance with detailed statistics. Study offline and sync your progress across devices.

**Highlights:** Irregular verb study with pronunciation, Phrasal verb lessons, Instant translation, Detailed statistics, Cross-device synchronization, Offline functionality, Free rewards and bonuses

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Phrasal verbs | $1.99 | one-time |
| English grammar | $14.99 | one-time |


### OBONSAIDO

[App page](https://appshunter.io/ios/app/obonsaido/id6744655039)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grammarize free?

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

### Is OBONSAIDO free?

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

### Do Grammarize or OBONSAIDO have ads?

Neither Grammarize nor OBONSAIDO shows ads.

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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.*