# 王国历险记 vs Abacus Mental Math Training

The clearest difference is in-app purchases: 王国历险记 at none against Abacus Mental Math Training's 1. 王国历险记 also leads on ads (none vs shown). Abacus Mental Math Training's advantage is update cadence (monthly vs every 20 months) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Abacus Mental Math Training sells 1 one-off in-app purchase. 王国历险记 asks for nothing beyond the download.

王国历险记 ships an update every 20 months, Abacus Mental Math Training monthly. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 王国历险记 | Abacus Mental Math Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (31 ratings)](https://appshunter.io/ios/app/abacus-mental-math-training/id6449295111/reviews)** |
| Number of ratings | — | **31** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 20 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 270 MB | 34 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Hoing Education & Technology Co.,Ltd](https://appshunter.io/developer/977865629) | [Peikun Duan](https://appshunter.io/developer/1240254007) |

## What reviewers say

### 王国历险记

[App page](https://appshunter.io/ios/app/id1104888944)

**Features:** macOS Compatibility

**In-app purchases:** none


### Abacus Mental Math Training

[App page](https://appshunter.io/ios/app/abacus-mental-math-training/id6449295111)

This app offers professional training and assessment for abacus mental calculation and flash calculation, adhering to international grading standards. It features challenge and custom modes to help users improve their math and speed calculation skills.

**Highlights:** Adheres to World Abacus Mental Calculation Federation standards, Challenge Mode with 10 levels and 200 stages, Custom Mode for Flash Calculation and Abacus practice, Adjustable calculation parameters (number range, digits, time), Gradual difficulty progression, Simulates exam conditions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.59 | one-time |


## Frequently asked questions

### Is 王国历险记 free?

王国历险记 is free to download, with no in-app purchases.

### Is Abacus Mental Math Training free?

Abacus Mental Math Training is free to download, with in-app purchases available.

### Do 王国历险记 or Abacus Mental Math Training have ads?

Abacus Mental Math Training shows ads; 王国历险记 does not.

### Which is updated more often, 王国历险记 or Abacus Mental Math Training?

王国历险记 ships an update every 20 months, and Abacus Mental Math Training monthly. Most recently, 王国历险记 was updated on October 7, 2026 and Abacus Mental Math Training on October 11, 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.*