# Interview Practice Cards vs SD Primer

The clearest difference is iOS requirement: Interview Practice Cards at 12.0 against SD Primer's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Interview Practice Cards sells 1 one-off in-app purchase and SD Primer sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Interview Practice Cards | SD Primer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 45 MB | 20 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [嘉炜 丰](https://appshunter.io/developer/1759511819) | [Ernesto Hilvano](https://appshunter.io/developer/1740292069) |

## What reviewers say

### Interview Practice Cards

[App page](https://appshunter.io/ios/app/interview-practice-cards/id6756295769)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock all Features | $9.99 | one-time |


### SD Primer

[App page](https://appshunter.io/ios/app/sd-primer/id6758010557)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SDPrimer Pro | $9.99 | per month |
| SDPrimer Pro | $99.99 | per year |


## Frequently asked questions

### Is Interview Practice Cards free?

Interview Practice Cards is free to download, with in-app purchases available.

### Is SD Primer free?

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

### Do Interview Practice Cards or SD Primer have ads?

Neither Interview Practice Cards nor SD Primer 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.*