# MentalCalculation & Abacus Pro vs Shouting Billiard

The clearest difference is review sentiment: Shouting Billiard at 60% against MentalCalculation & Abacus Pro's 0%. Shouting Billiard also leads on price (Free vs $0.99) and ads (none vs shown). MentalCalculation & Abacus Pro's advantage is in-app purchases (none vs 4). On device support and iOS requirement there is nothing between them.

Shouting Billiard is free to download; MentalCalculation & Abacus Pro costs $0.99 up front. Shouting Billiard sells 4 one-off in-app purchases. MentalCalculation & Abacus Pro asks for nothing beyond the download.

MentalCalculation & Abacus Pro ships an update monthly, Shouting Billiard daily. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | MentalCalculation & Abacus Pro | Shouting Billiard |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shouting-billiard/id6483251895/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **60.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Daily** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 144 MB | 222 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Park Jisang](https://appshunter.io/developer/995438886) | [D&D Dream Corp.](https://appshunter.io/developer/338533084) |

## What reviewers say

### MentalCalculation & Abacus Pro

[App page](https://appshunter.io/ios/app/mentalcalculation-and-abacus-pro/id6474296462)

Engage in a fun and challenging mental calculation and abacus game. Practice with diverse questions and learn the abacus with an easy tutorial. This pro version offers an enhanced experience without frequent forced ads.

**Highlights:** Mental calculation practice, Abacus learning tutorial, Variety of practice questions, Pro version benefits, No forced ads

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

**In-app purchases:** none


### Shouting Billiard

[App page](https://appshunter.io/ios/app/shouting-billiard/id6483251895)

Experience a realistic billiards game with multiple modes like Mission, Practice, and Multi. Enhance your skills with challenging scenarios, refine shots with position adjustments, and compete against AI or other players. Share emotions with opponents and climb the global rankings.

**Highlights:** Mission, Multi, and Practice game modes, Challenging mission scenarios, Position adjustment and replay functions, Fight and Normal Multi modes, AI opponent matches, Overall, Monthly, and Weekly rankings, 10 types of cues and 4 skills

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chip 100,000 | $0.99 | one-time |
| Chip 330,000 | $2.99 | one-time |
| Chip 1,200,000 | $9.99 | one-time |
| Chip 6,500,000 | $49.99 | one-time |


## Frequently asked questions

### Is MentalCalculation & Abacus Pro free?

MentalCalculation & Abacus Pro costs $0.99, with no in-app purchases.

### Is Shouting Billiard free?

Shouting Billiard is free to download, with in-app purchases available.

### Do MentalCalculation & Abacus Pro or Shouting Billiard have ads?

MentalCalculation & Abacus Pro shows ads; Shouting Billiard does not.

### Which is updated more often, MentalCalculation & Abacus Pro or Shouting Billiard?

MentalCalculation & Abacus Pro ships an update monthly, and Shouting Billiard daily. Most recently, MentalCalculation & Abacus Pro was updated on October 6, 2026 and Shouting Billiard on October 2, 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.*