# Monetarium vs Unique Auctions

The clearest difference is update cadence: Monetarium at every 4 months against Unique Auctions's every 24 months. Monetarium also leads on iOS requirement (13.0 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Monetarium against 5.0 for Unique Auctions. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Monetarium ships an update every 4 months, Unique Auctions every 24 months. The most recent releases landed on June 1, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | Monetarium | Unique Auctions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/monetarium/id1528186547/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/unique-auctions/id1535153692/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 24 months |
| Monetization | Free | Free |
| Size | 75 MB | 135 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Monetarium Singapore Pte Ltd](https://appshunter.io/developer/1528186549) | [Unique World Coin Sdn. Bhd](https://appshunter.io/developer/1535153694) |

## What reviewers say

### Monetarium

[App page](https://appshunter.io/ios/app/monetarium/id1528186547)

This app connects users with an auction house specializing in rare banknotes and coins. It provides information on upcoming auctions and services for grading collectibles.

**Highlights:** Banknote and coin auctions, PMG, NGC, PCGS grading authorization, Information on annual auctions, Collectible appraisal services, Singapore-based auction house

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Unique Auctions

[App page](https://appshunter.io/ios/app/unique-auctions/id1535153692)

This app connects users with a numismatic auction company for professional evaluations, exhibitions, and auctions of coins and banknotes. It facilitates a global network of collectors and business partners.

**Highlights:** Professional numismatic evaluation, Exhibitions and auctions, Global collector network, Numismatic society memberships, Numismatic company subsidiary

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Monetarium free?

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

### Is Unique Auctions free?

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

### Which has better reviews, Monetarium or Unique Auctions?

Monetarium and Unique Auctions are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Monetarium or Unique Auctions have ads?

Neither Monetarium nor Unique Auctions shows ads.

### Which is updated more often, Monetarium or Unique Auctions?

Monetarium ships an update every 4 months, and Unique Auctions every 24 months. Most recently, Monetarium was updated on June 1, 2026 and Unique Auctions on July 7, 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.*