Comparison

Monetarium vs Sky Kirin Auctions

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Monetarium

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
Read full description

Monetarium, located in Singapore, was established in 1995. The auction house regularly conducts auctions every year since 2008. We specialize in banknotes and coins and we are also an authorized of PMG, NGC and PCGS grading.

About

Sky Kirin Auctions

Features
Read full description

We are an auction company in based in Singapore. We specialize in auctioning numismatics. This app provides flexibility and convenience for customer to view our upcoming bidding item in details. Also once customer is interested, they can do register with us and start bidding anytime and wherever you are. Do contact us if you have any issue registering. With the Sky Kirin Auctions app, you can preview, watch and bid in our auctions from your mobile / tablet device. Participate in our sales while on-the-go and gain access to our following features: • Quick Registration • Following upcoming lots of interest • Push notifications to ensure you engage on items of interest • Track bidding history and activity • Watch live auctions

Screenshots

Monetarium4 screens
Sky Kirin Auctions4 screens

Verdict

The call

The clearest difference is update cadence: Monetarium at every 4 months against Sky Kirin Auctions's every 24 months. Monetarium also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Monetarium ships an update every 4 months, Sky Kirin Auctions every 24 months. The most recent releases landed on June 1, 2026 and September 20, 2026 respectively.

Scorecard2 real differences · 8 level
Monetarium versus Sky Kirin Auctions: the parameters behind the verdict, then further details
ParameterMonetariumSky Kirin Auctions
PriceFreeFree
Rating5.0 (1 ratings) — better
Positive reviews0.0% of reviews
Number of ratings1 — better
Update frequencyEvery 4 months — betterEvery 24 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better16.0
Further details — not scored
Size75 MB135 MB
Age rating9+9+
DeveloperMonetarium Singapore Pte LtdSky Kirin Pte Ltd

In-app purchases

None

Monetarium

No in-app purchases

None

Sky Kirin Auctions

No in-app purchases

Questions

Is Monetarium free?
Monetarium is free to download, with no in-app purchases.
Is Sky Kirin Auctions free?
Sky Kirin Auctions is free to download, with no in-app purchases.
Do Monetarium or Sky Kirin Auctions have ads?
Neither Monetarium nor Sky Kirin Auctions shows ads.
Which is updated more often, Monetarium or Sky Kirin Auctions?
Monetarium ships an update every 4 months, and Sky Kirin Auctions every 24 months. Most recently, Monetarium was updated on June 1, 2026 and Sky Kirin Auctions on September 20, 2026.

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