# PS 398 Walter Weaver vs PrepRally

The clearest difference is update cadence: PrepRally at weekly against PS 398 Walter Weaver's every 6 weeks. PS 398 Walter Weaver's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PS 398 Walter Weaver ships an update every 6 weeks, PrepRally weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | PS 398 Walter Weaver | PrepRally |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Size | 165 MB | 35 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Solved Education Consultancy, LLC](https://appshunter.io/developer/1506645558) | [Dalliant Technologies](https://appshunter.io/developer/977013351) |

## What reviewers say

### PS 398 Walter Weaver

[App page](https://appshunter.io/ios/app/ps-398-walter-weaver/id6748744292)

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

**In-app purchases:** none


### PrepRally

[App page](https://appshunter.io/ios/app/preprally-interview-practice/id6789340716)

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

**In-app purchases:** none


## Frequently asked questions

### Is PS 398 Walter Weaver free?

PS 398 Walter Weaver is free to download, with no in-app purchases.

### Is PrepRally free?

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

### Do PS 398 Walter Weaver or PrepRally have ads?

Neither PS 398 Walter Weaver nor PrepRally shows ads.

### Which is updated more often, PS 398 Walter Weaver or PrepRally?

PS 398 Walter Weaver ships an update every 6 weeks, and PrepRally weekly. Most recently, PS 398 Walter Weaver was updated on October 25, 2026 and PrepRally on October 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.*