# 世界货币大全 vs Arbitrary Triangle PRO

The clearest difference is update cadence: Arbitrary Triangle PRO at every 3 weeks against 世界货币大全's every 37 months. 世界货币大全's advantage is price ($1.99 vs $2.99). On in-app purchases, device support and iOS requirement there is nothing between them.

世界货币大全 costs $1.99 and Arbitrary Triangle PRO $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

世界货币大全 ships an update every 37 months, Arbitrary Triangle PRO every 3 weeks. The most recent releases landed on September 11, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 世界货币大全 | Arbitrary Triangle PRO |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/arbitrary-triangle-pro/id1617819308/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 37 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 23 MB | 182 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [正峰 裴](https://appshunter.io/developer/1437867699) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### 世界货币大全

[App page](https://appshunter.io/ios/app/id1517943624)

**Features:** macOS Compatibility

**In-app purchases:** none


### Arbitrary Triangle PRO

[App page](https://appshunter.io/ios/app/arbitrary-triangle-pro/id1617819308)

This app calculates all unknown quantities of an arbitrary triangle. It displays the formulas used and provides step-by-step solutions, supporting decimals and fractions. Calculations are saved in history and can be shared.

**Highlights:** Calculates all triangle quantities, Displays formulas used, Step-by-step solutions, Supports decimals and fractions, Calculation history, Shareable solutions

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

**In-app purchases:** none


## Frequently asked questions

### Is 世界货币大全 free?

世界货币大全 costs $1.99, with no in-app purchases.

### Is Arbitrary Triangle PRO free?

Arbitrary Triangle PRO costs $2.99, with no in-app purchases.

### Which is updated more often, 世界货币大全 or Arbitrary Triangle PRO?

世界货币大全 ships an update every 37 months, and Arbitrary Triangle PRO every 3 weeks. Most recently, 世界货币大全 was updated on September 11, 2026 and Arbitrary Triangle PRO on September 17, 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.*