# Memory Shard vs Universe Invader 2

The clearest difference is rating: Memory Shard at 5.0 against Universe Invader 2's 4.5. Memory Shard also leads on monetization model (free with in-app purchases vs paid). Universe Invader 2's advantage is ads (none vs shown) and update cadence (every 6 months vs every 14 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Memory Shard sells 1 one-off in-app purchase and Universe Invader 2 sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Memory Shard holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Universe Invader 2 has 8 ratings behind it against 1, so its average is the more settled of the two.

Memory Shard ships an update every 14 months, Universe Invader 2 every 6 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Memory Shard | Universe Invader 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memory-shard/id1496601534/reviews)** | [4.5 (8 ratings)](https://appshunter.io/ios/app/universe-invader-2-premium/id6757993668/reviews) |
| Number of ratings | 1 | **8** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | **Every 6 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 178 MB | 384 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [CellXU Co., Ltd.](https://appshunter.io/developer/1189024698) | [Gcenter](https://appshunter.io/developer/1473786034) |

## What reviewers say

### Memory Shard

[App page](https://appshunter.io/ios/app/memory-shard/id1496601534)

Guide a girl through the universe to collect scattered memory shards and piece together her past. This casual game features physics-based challenges, simple visuals, and a captivating soundtrack.

**Highlights:** Physics-based gameplay, Casual game, Simple and clean visuals, Beautiful soundtrack, Universe exploration

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate | $0.99 | one-time |


### Universe Invader 2

[App page](https://appshunter.io/ios/app/universe-invader-2-premium/id6757993668)

Engage in intense space combat with powerful spacecraft against endless alien invaders. This premium version offers a full, uninterrupted arcade-style shooter experience with all content unlocked from the start. Enjoy fast-paced action, modern visuals, and challenging boss battles.

**Highlights:** Ad-free, uninterrupted gameplay, Full content unlocked, Classic arcade-style shooter, Intense boss battles, Offline play supported, Upgrade spacecraft and firepower

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $0.99 | one-time |
| Instant Rank Up 2 | $1.99 | one-time |
| Instant Rank Up 3 | $4.99 | one-time |
| Instant Rank Up 4 | $7.99 | one-time |
| Instant Rank Up 5 | $9.99 | one-time |
| Instant Rank Up 6 | $11.99 | one-time |
| Instant Rank Up 7 | $14.99 | one-time |
| Instant Rank Up 8 | $19.99 | one-time |
| Instant Rank Up 9 | $24.99 | one-time |
| Instant Rank Up 10 | $29.99 | one-time |


## Frequently asked questions

### Is Memory Shard free?

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

### Is Universe Invader 2 free?

Universe Invader 2 is free to download, with in-app purchases available.

### Which has better reviews, Memory Shard or Universe Invader 2?

Memory Shard is rated higher. Memory Shard averages 5.0 out of 5 from 1 ratings, while Universe Invader 2 averages 4.5 from 8 ratings.

### Do Memory Shard or Universe Invader 2 have ads?

Memory Shard shows ads; Universe Invader 2 does not.

### Which is updated more often, Memory Shard or Universe Invader 2?

Memory Shard ships an update every 14 months, and Universe Invader 2 every 6 months. Most recently, Memory Shard was updated on November 3, 2026 and Universe Invader 2 on November 5, 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.*