# smart_r vs MindStack Flashcards

The clearest difference is iOS requirement: smart_r at 15.6 against MindStack Flashcards's 26.0. On price, ads, in-app purchases 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 and MindStack Flashcards sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | smart_r | MindStack Flashcards |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 48 MB | 48 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SMART-R TECHNOLOGY LIMITED](https://appshunter.io/developer/1810160388) | [harris khalid](https://appshunter.io/developer/1804203945) |

## 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 |


### MindStack Flashcards

[App page](https://appshunter.io/ios/app/mindstack-flashcards/id6764129492)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Annual | $19.99 | per year |


## Frequently asked questions

### Is smart_r free?

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

### Is MindStack Flashcards free?

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

### Do smart_r or MindStack Flashcards have ads?

Neither smart_r nor MindStack Flashcards 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.*