# TRIGOMETRIC vs Crown Currency Auctions

TRIGOMETRIC and Crown Currency Auctions are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TRIGOMETRIC ships an update every 25 months, Crown Currency Auctions every 15 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | TRIGOMETRIC | Crown Currency Auctions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/crown-currency-auctions/id1578290765/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 15 months** |
| Monetization | — | Free |
| Size | 135 MB | 135 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 9+ |
| Developer | [TRIGOMETRIC SDN BHD](https://appshunter.io/developer/1533217166) | [Crown Currency](https://appshunter.io/developer/1578290977) |

## What reviewers say

### TRIGOMETRIC

[App page](https://appshunter.io/ios/app/trigometric/id1533217164)

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

**In-app purchases:** none


### Crown Currency Auctions

[App page](https://appshunter.io/ios/app/crown-currency-auctions/id1578290765)

Participate in live auctions for world banknotes from your mobile device. Preview upcoming lots, receive push notifications for items of interest, and track your bidding history. Engage in sales conveniently while on the go.

**Highlights:** Live auction bidding, Preview upcoming lots, Push notifications, Track bidding history, Quick registration, Mobile access

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is TRIGOMETRIC free?

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

### Is Crown Currency Auctions free?

Crown Currency Auctions is free to download, with no in-app purchases.

### Do TRIGOMETRIC or Crown Currency Auctions have ads?

Neither TRIGOMETRIC nor Crown Currency Auctions shows ads.

### Which is updated more often, TRIGOMETRIC or Crown Currency Auctions?

TRIGOMETRIC ships an update every 25 months, and Crown Currency Auctions every 15 months. Most recently, TRIGOMETRIC was updated on November 3, 2026 and Crown Currency Auctions on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*