# Tesuji Library vs Imaginary Ping Pong (IPP)

The clearest difference is price: Imaginary Ping Pong (IPP) at Free against Tesuji Library's $5.99. Imaginary Ping Pong (IPP) also leads on update cadence (every 3 days vs every 4 months) and iOS requirement (8.0 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

Imaginary Ping Pong (IPP) is free to download; Tesuji Library costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tesuji Library ships an update every 4 months, Imaginary Ping Pong (IPP) every 3 days. The most recent releases landed on October 26, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Tesuji Library | Imaginary Ping Pong (IPP) |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/tesuji-library/id562897263/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 60.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 243 MB | 47 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [延正 王](https://appshunter.io/developer/499791474) | [华 魏](https://appshunter.io/developer/454719266) |

## What reviewers say

### Tesuji Library

[App page](https://appshunter.io/ios/app/tesuji-library/id562897263)

Enhance your Go game with this app, focusing on skillful moves and strategic plays. Learn to execute clever tactics to improve your reading ability and win more games.

**Highlights:** Study Go game skills, Learn tesuji (skillful moves), Improve reading ability, Practice strategic plays, Analyze life and death situations

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

**In-app purchases:** none


### Imaginary Ping Pong (IPP)

[App page](https://appshunter.io/ios/app/imaginary-ping-pong-ipp/id1335338161)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tesuji Library free?

Tesuji Library costs $5.99, with no in-app purchases.

### Is Imaginary Ping Pong (IPP) free?

Imaginary Ping Pong (IPP) is free to download, with no in-app purchases.

### Do Tesuji Library or Imaginary Ping Pong (IPP) have ads?

Neither Tesuji Library nor Imaginary Ping Pong (IPP) shows ads.

### Which is updated more often, Tesuji Library or Imaginary Ping Pong (IPP)?

Tesuji Library ships an update every 4 months, and Imaginary Ping Pong (IPP) every 3 days. Most recently, Tesuji Library was updated on October 26, 2026 and Imaginary Ping Pong (IPP) on October 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.*