# Roboball vs Memory Stamps

The clearest difference is rating: Memory Stamps at 4.3 against Roboball's 3.5. Memory Stamps also leads on update cadence (fortnightly vs every 19 months) and ratings volume (82 vs 2). Roboball's advantage is review sentiment (50% vs 40%). On ads, in-app purchases, monetization model and device support there is nothing between them.

Roboball costs $4.99 and Memory Stamps $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Memory Stamps holds the better App Store score, 4.3 against 3.5. That said, the two scores are not equally well evidenced: Memory Stamps has 82 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of Roboball's written reviews are positive against 40% of Memory Stamps's, so the app with the better star average is not the one people write more warmly about.

Roboball ships an update every 19 months, Memory Stamps fortnightly. The most recent releases landed on October 6, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Roboball | Memory Stamps |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/roboball/id1508288751/reviews) | **[4.3 (82 ratings)](https://appshunter.io/ios/app/memory-stamps/id1548945086/reviews)** |
| Number of ratings | 2 | **82** |
| Positive reviews | **50.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 164 MB | 52 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Darya Vladislavovna](https://appshunter.io/developer/1067566962) | [Tepes Ovidiu](https://appshunter.io/developer/1225592787) |

## What reviewers say

### Roboball

[App page](https://appshunter.io/ios/app/roboball/id1508288751)

Control a ball-shaped robot to solve physics and logic puzzles. Manipulate mechanisms like buttons, lasers, and doors, sometimes with the help of objects, to reach the teleporter and advance through levels.

**Highlights:** Physics-based puzzles, Logic puzzles, Robot ball control, Mechanism interaction, Level progression, Object manipulation

**Features:** macOS Compatibility

**In-app purchases:** none


### Memory Stamps

[App page](https://appshunter.io/ios/app/memory-stamps/id1548945086)

An elegant puzzle game designed to enhance visual memory and promote relaxation. Players study detailed illustrations and then recreate them by filling in missing elements, with options for a stress-free Zen mode or a timed Challenge mode.

**Highlights:** Visual memory training, Zen and Challenge modes, Themed illustrations, Light and Dark mode, Soothing music and colors, Offline play

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

**In-app purchases:** none


## Frequently asked questions

### Is Roboball free?

Roboball costs $4.99, with no in-app purchases.

### Is Memory Stamps free?

Memory Stamps costs $1.99, with no in-app purchases.

### Which has better reviews, Roboball or Memory Stamps?

Memory Stamps is rated higher. Roboball averages 3.5 out of 5 from 2 ratings, while Memory Stamps averages 4.3 from 82 ratings.

### Do Roboball or Memory Stamps have ads?

Neither Roboball nor Memory Stamps shows ads.

### Which is updated more often, Roboball or Memory Stamps?

Roboball ships an update every 19 months, and Memory Stamps fortnightly. Most recently, Roboball was updated on October 6, 2026 and Memory Stamps on October 29, 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.*