# RDS Test vs Crammer

The clearest difference is in-app purchases: RDS Test at none against Crammer's 7. RDS Test also leads on iOS requirement (6.0 vs 15). On price and device support there is nothing between them.

Both are free to download. Crammer sells 7 one-off in-app purchases. RDS Test asks for nothing beyond the download.

## The numbers

| Metric | RDS Test | Crammer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 9 days |
| Monetization | — | Free |
| Size | 28 MB | 9 MB |
| Requires iOS | **6.0** | 15 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Commisso](https://appshunter.io/developer/569310177) | [Pranoy Chowdhury](https://appshunter.io/developer/952263202) |

## What reviewers say

### RDS Test

[App page](https://appshunter.io/ios/app/rds-test/id990139073)

**Features:** macOS Compatibility

**In-app purchases:** none


### Crammer

[App page](https://appshunter.io/ios/app/crammer-flash-cards-maker/id6775268676)

Create and memorize study materials efficiently with an advanced algorithm. Organize cards into decks, practice recall, and track your progress. Supports rich text formatting and iCloud syncing across devices.

**Highlights:** Unlimited flashcard creation, Spaced repetition algorithm, Active recall practice, Deck and folder organization, Markdown and LaTeX support, iCloud syncing, Multiple choice question support

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nice Tip | $3.99 | one-time |
| Kind Tip | $5.99 | one-time |
| Generous Tip | $9.99 | one-time |
| Lifetime Pro | $12.99 | one-time |
| Amazing Tip | $14.99 | one-time |
| Kong Tip | $19.99 | one-time |
| Godzilla Tip | $24.99 | one-time |


## Frequently asked questions

### Is RDS Test free?

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

### Is Crammer free?

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*