# TaiseiAuction vs BITBUY

The clearest difference is in-app purchases: TaiseiAuction at none against BITBUY's 1. TaiseiAuction also leads on ads (none vs shown). BITBUY's advantage is update cadence (monthly vs every 8 months) and iOS requirement (13.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. BITBUY sells 1 in-app purchase, starting at $4.99 per month. TaiseiAuction asks for nothing beyond the download.

TaiseiAuction ships an update every 8 months, BITBUY monthly. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | TaiseiAuction | BITBUY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/taiseiauction/id1460425362/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Free | — |
| Size | 134 MB | 63 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Taisei Auction Corporation](https://appshunter.io/developer/1460425361) | [株式会社ホーム・コム](https://appshunter.io/developer/1761071229) |

## What reviewers say

### TaiseiAuction

[App page](https://appshunter.io/ios/app/taiseiauction/id1460425362)

Discover and bid on numismatic items from around the globe. This platform offers a wide selection of gold and silver rarities, as well as banknotes, through annual and online auctions. It's a trusted source for collectors to find or sell valuable coins.

**Highlights:** Global numismatic item auctions, Gold and silver rarities, Banknote auctions, Annual Tokyo International Coin Convention auctions, Online auctions, Trusted coin dealer services

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### BITBUY

[App page](https://appshunter.io/ios/app/bitbuy/id6608960824)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| アプリ利用料 | $4.99 | per month |


## Frequently asked questions

### Is TaiseiAuction free?

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

### Is BITBUY free?

BITBUY is free to download, with in-app purchases available.

### Do TaiseiAuction or BITBUY have ads?

BITBUY shows ads; TaiseiAuction does not.

### Which is updated more often, TaiseiAuction or BITBUY?

TaiseiAuction ships an update every 8 months, and BITBUY monthly. Most recently, TaiseiAuction was updated on September 10, 2026 and BITBUY on September 21, 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.*