# HKIDA vs Zipang Auctions

HKIDA and Zipang 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.

HKIDA ships an update every 3 weeks, Zipang Auctions every 11 days. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | HKIDA | Zipang Auctions |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | — | Free |
| Size | 28 MB | 42 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HONG KONG INDIAN DIAMOND INSTITUTION LIMITED](https://appshunter.io/developer/1516609494) | [MY AUCTIONS, K.K.](https://appshunter.io/developer/1724719029) |

## What reviewers say

### HKIDA

[App page](https://appshunter.io/ios/app/hkida/id1440573326)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zipang Auctions

[App page](https://appshunter.io/ios/app/zipang-auctions/id6475668664)

This platform connects sellers and bidders with full transparency regarding the condition and specifications of goods. It aims to provide bidders with a clear understanding of items before they place their bids.

**Highlights:** Transparent goods disclosure, Detailed item specifications, Bidder confidence features, Seller-to-bidder platform, Condition transparency

**In-app purchases:** none


## Frequently asked questions

### Is HKIDA free?

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

### Is Zipang Auctions free?

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

### Do HKIDA or Zipang Auctions have ads?

Neither HKIDA nor Zipang Auctions shows ads.

### Which is updated more often, HKIDA or Zipang Auctions?

HKIDA ships an update every 3 weeks, and Zipang Auctions every 11 days. Most recently, HKIDA was updated on October 19, 2026 and Zipang Auctions on October 3, 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.*