# smart_r vs Grade Britain

The clearest difference is in-app purchases: Grade Britain at none against smart_r's 15. smart_r's advantage is update cadence (every 4 weeks vs every 2 months) and iOS requirement (15.6 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. smart_r sells 15 in-app purchases, starting at $1.99 per month. Grade Britain asks for nothing beyond the download.

smart_r ships an update every 4 weeks, Grade Britain every 2 months. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | smart_r | Grade Britain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 48 MB | 3 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SMART-R TECHNOLOGY LIMITED](https://appshunter.io/developer/1810160388) | [Michael Lehnert](https://appshunter.io/developer/1896534503) |

## What reviewers say

### smart_r

[App page](https://appshunter.io/ios/app/smart-r/id6744962652)

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthlyplan | $1.99 | per month |
| all topic discount 4 | Free | one-time |
| Gems50 | $0.49 | one-time |
| all topic discount 3 | $0.99 | one-time |
| gems150 | $0.99 | one-time |
| geometry topic | $2.99 | one-time |
| number topic | $2.99 | one-time |
| probability topic | $2.99 | one-time |
| ratio topic | $2.99 | one-time |
| stats topic | $2.99 | one-time |
| gems500 | $2.99 | one-time |
| all topic discount 2 | $3.99 | one-time |
| SeasonPass | $3.99 | one-time |
| all topic discount 1 | $6.99 | one-time |
| all topics | $10.00 | one-time |


### Grade Britain

[App page](https://appshunter.io/ios/app/grade-britain/id6782894237)

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

**In-app purchases:** none


## Frequently asked questions

### Is smart_r free?

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

### Is Grade Britain free?

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

### Do smart_r or Grade Britain have ads?

Neither smart_r nor Grade Britain shows ads.

### Which is updated more often, smart_r or Grade Britain?

smart_r ships an update every 4 weeks, and Grade Britain every 2 months. Most recently, smart_r was updated on October 11, 2026 and Grade Britain on October 6, 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.*