# RANDOM.ORG vs MemDeck

The clearest difference is review sentiment: MemDeck at 100% against RANDOM.ORG's 59%. MemDeck also leads on rating (5.0 vs 4.6). RANDOM.ORG's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. RANDOM.ORG sells 6 one-off in-app purchases and MemDeck sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

MemDeck holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: RANDOM.ORG has 1.3K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 59% of RANDOM.ORG's written reviews are positive against 100% of MemDeck's.

RANDOM.ORG ships an update every 3 months, MemDeck every 6 weeks. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | RANDOM.ORG | MemDeck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (1.3K ratings)](https://appshunter.io/ios/app/randomorg/id641621861/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/memdeck-speed-card-practice/id1512368764/reviews)** |
| Number of ratings | **1.3K** | 3 |
| Positive reviews | 59.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 4 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RANDOM.ORG](https://appshunter.io/developer/641621864) | [Wataru Mera](https://appshunter.io/developer/1512368763) |

## What reviewers say

### RANDOM.ORG

[App page](https://appshunter.io/ios/app/randomorg/id641621861)

Generate certified true random numbers and use various randomizing tools. This app provides a coin flipper, dice roller, card shuffler, lotto quick pick, integer generator, and list randomizer, all powered by atmospheric noise for high-quality randomness.

**Highlights:** Certified true randomness, Coin flipper, Dice roller, Card shuffler, Lotto quick pick, Integer generator, List randomizer

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Card Shuffler | $0.99 | one-time |
| Integer Generator | $0.99 | one-time |
| Dice Roller | $0.99 | one-time |
| List Randomizer | $0.99 | one-time |
| Lotto Quick Pick | $0.99 | one-time |
| All Randomizers | $2.99 | one-time |

**What reviewers like**

- 🚀 Truly random
- 👍 Reliable and trustworthy
- 🚀 Convenient and easy to use
- 💡 Useful for various applications (music practice, gaming, decision-making)

**What reviewers complain about**

- 💰 Paid features required for full functionality
- 🐛 Occasional crashes or bugs
- 🔍 Limited customization options
- 🔍 Lack of offline functionality

**Reported bugs**

- Random number generation issues (repeating numbers, inconsistent behavior)
- Compatibility problems with newer iOS versions
- Crashes when using certain features

**Requested features**

- Ability to paste long lists for randomization
- Support for multiple types of dice and dice rolling
- Customizable default settings
- Offline mode or local data storage
- Improved list management (sorting, reordering, etc.)


### MemDeck

[App page](https://appshunter.io/ios/app/memdeck-speed-card-practice/id1512368764)

Practice card memorization with this app that shuffles decks and tests your recall. Track your progress and compete globally. Adjust deck size for all skill levels.

**Highlights:** Card shuffling and display, Memorization timing, Automatic answer checking, Results recording, Adjustable deck size, Global leaderboards

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is RANDOM.ORG free?

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

### Is MemDeck free?

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

### Which has better reviews, RANDOM.ORG or MemDeck?

MemDeck is rated higher. RANDOM.ORG averages 4.6 out of 5 from 1.3K ratings, while MemDeck averages 5.0 from 3 ratings.

### Do RANDOM.ORG or MemDeck have ads?

MemDeck shows ads; RANDOM.ORG does not.

### Which is updated more often, RANDOM.ORG or MemDeck?

RANDOM.ORG ships an update every 3 months, and MemDeck every 6 weeks. Most recently, RANDOM.ORG was updated on October 14, 2026 and MemDeck on September 25, 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.*