# Pi Masters vs Wiki Reader

The clearest difference is in-app purchases: Pi Masters at none against Wiki Reader's 3. Pi Masters also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Wiki Reader sells 3 in-app purchases, starting at $5.99 per 7 days. Pi Masters asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Pi Masters | Wiki Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 2 MB | 11 MB |
| Requires iOS | 17.5 | **16.0** |
| Devices | **iPhone, iPad, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dave Poirier](https://appshunter.io/developer/757241910) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### Pi Masters

[App page](https://appshunter.io/ios/app/pi-masters/id6504531645)

**Features:** macOS Compatibility

**In-app purchases:** none


### Wiki Reader

[App page](https://appshunter.io/ios/app/wiki-reader-learn-facts-feed/id6760022581)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly Plan | $5.99 | per 7 days |
| Premium Yearly | $29.99 | per year |
| Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Pi Masters free?

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

### Is Wiki Reader free?

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

### Do Pi Masters or Wiki Reader have ads?

Neither Pi Masters nor Wiki Reader shows ads.

### Which is updated more often, Pi Masters or Wiki Reader?

Pi Masters ships an update every 3 months, and Wiki Reader every 3 months. Most recently, Pi Masters was updated on October 27, 2026 and Wiki Reader on October 28, 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.*