# Palace Walk vs Number Memory 25

The clearest difference is price: Palace Walk at Free against Number Memory 25's $0.99. Palace Walk also leads on in-app purchases (none vs 1) and ratings volume (17 vs 5). Number Memory 25's advantage is ads (none vs shown) and rating (5.0 vs 4.6). On update cadence, device support and iOS requirement there is nothing between them.

Palace Walk is free to download; Number Memory 25 costs $0.99 up front. Number Memory 25 sells 1 one-off in-app purchase. Palace Walk asks for nothing beyond the download.

Number Memory 25 holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 17 and 5 respectively.

Palace Walk ships an update fortnightly, Number Memory 25 every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Palace Walk | Number Memory 25 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.6 (17 ratings)](https://appshunter.io/ios/app/palace-walk/id1583677186/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/number-memory-25/id6448686063/reviews)** |
| Number of ratings | **17** | 5 |
| Positive reviews | 81.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Ad-supported** | Paid |
| Size | 59 MB | 3 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Tomoya Furubori](https://appshunter.io/developer/1560096349) | [T&T United Inc.](https://appshunter.io/developer/468282934) |

## What reviewers say

### Palace Walk

[App page](https://appshunter.io/ios/app/palace-walk/id1583677186)

Train your memory using the Memory Palace technique. This app provides an easy way to practice the Method of Loci, useful for studying, memorizing lists, and improving recall.

**Highlights:** Memory Palace training, Method of Loci practice, Journey Method exercises, Useful for studying, Helps memorize lists

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Number Memory 25

[App page](https://appshunter.io/ios/app/number-memory-25/id6448686063)

This brain training app helps improve memory by challenging users to memorize and recall sequences of numbers. Regular, short practice sessions can enhance visual memory and cognitive skills.

**Highlights:** Memorize and recall number sequences, Visual memory training, Daily 30-second practice, Progressive difficulty, Simple, challenging gameplay

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All | Free | one-time |


## Frequently asked questions

### Is Palace Walk free?

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

### Is Number Memory 25 free?

Number Memory 25 costs $0.99, and also offers in-app purchases.

### Which has better reviews, Palace Walk or Number Memory 25?

Number Memory 25 is rated higher. Palace Walk averages 4.6 out of 5 from 17 ratings, while Number Memory 25 averages 5.0 from 5 ratings.

### Do Palace Walk or Number Memory 25 have ads?

Palace Walk shows ads; Number Memory 25 does not.

### Which is updated more often, Palace Walk or Number Memory 25?

Palace Walk ships an update fortnightly, and Number Memory 25 every 3 weeks. Most recently, Palace Walk was updated on October 24, 2026 and Number Memory 25 on October 24, 2026.

---

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