TRIGOMETRIC vs Unique Auctions
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TRIGOMETRIC
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Trigometric Sdn. Bhd., located in Kuala Lumpur, was established in 1995. The house conducts 2 large public sale a year with focus on Malaysian Banknotes & Coins, in addition with various world banknotes & coins. Our auctions feature rare selections of Malaysian Banknotes and also China and Hong kong specialty banknotes.
Unique Auctions
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.
- Professional numismatic evaluation
- Exhibitions and auctions
- Global collector network
- Numismatic society memberships
- Numismatic company subsidiary
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Unique Auctions is owned by one of the main numismatic auction company in Malaysia, Unique World Coin Sdn.Bhd. It is a subsidiary of Unique Discovery (Group) Sdn Bhd which founded in 2013 that provide professional evaluation service, exhibitions and auction. Our business partners are from Malaysia, Singapore, Brunei, Indonesia, China, Hong Kong, Taiwan. We are also a member of Malaysia Numismatic Collector Society, International Bank Note Society, Hong Kong Numismatic Society, Associacao Numismatica De Macau. Through the years, we have build relationships with collectors and business partners from different countries forming a global network and also gain the reputation for good quality of service.
Screenshots
Verdict
TRIGOMETRIC and Unique 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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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, Unique Auctions every 24 months. The most recent releases landed on August 27, 2026 and July 7, 2026 respectively.
| Parameter | TRIGOMETRIC | Unique Auctions |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 25 months | Every 24 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 135 MB | 135 MB |
| Age rating | 9+ | 9+ |
| Developer | TRIGOMETRIC SDN BHD | Unique World Coin Sdn. Bhd |
In-app purchases
TRIGOMETRIC
No in-app purchases
Unique Auctions
No in-app purchases
Questions
Is TRIGOMETRIC free?
Is Unique Auctions free?
Do TRIGOMETRIC or Unique Auctions have ads?
Which is updated more often, TRIGOMETRIC or Unique Auctions?
Other comparisons
