# Spaced Repetition SmartCards+ vs OPUS

The clearest difference is in-app purchases: OPUS at none against Spaced Repetition SmartCards+'s 3. OPUS also leads on ads (none vs shown) and iOS requirement (14.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Spaced Repetition SmartCards+ sells 3 in-app purchases, starting at $7.99 per month. OPUS asks for nothing beyond the download.

## The numbers

| Metric | Spaced Repetition SmartCards+ | OPUS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2.3K ratings)](https://appshunter.io/ios/app/spaced-repetition-smartcards-plus/id1210521987/reviews)** | — |
| Number of ratings | **2.3K** | — |
| Positive reviews | 65.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 30 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dynamic App Design LLC](https://appshunter.io/developer/434136236) | [Beliven Srl](https://appshunter.io/developer/1715681319) |

## What reviewers say

### Spaced Repetition SmartCards+

[App page](https://appshunter.io/ios/app/spaced-repetition-smartcards-plus/id1210521987)

This app helps you learn and retain information effectively using a Spaced Repetition System. It optimizes your study time by showing you content at the perfect moment for maximum recall. Easily import existing flashcards and track your progress with detailed statistics.

**Highlights:** Advanced Spaced Repetition System (SRS) algorithm, Create rich media flashcards (text, image, audio), Import decks from Anki and Quizlet, Detailed progress statistics and charts, Cloud synchronization across devices, Optimized for iPad, Apple Watch, and Widgets

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmartCards+ Premium (Monthly) | $7.99 | per month |
| SmartCards+ Premium (Yearly) | $29.99 | per year |
| SmartCards+ Premium Lifetime | $69.99 | one-time |


### OPUS

[App page](https://appshunter.io/ios/app/opus/id6744814034)

**In-app purchases:** none


## Frequently asked questions

### Is Spaced Repetition SmartCards+ free?

Spaced Repetition SmartCards+ is free to download, with in-app purchases available.

### Is OPUS free?

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

### Do Spaced Repetition SmartCards+ or OPUS have ads?

Spaced Repetition SmartCards+ shows ads; OPUS does not.

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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.*