# モバオク vs KEIBAY

The clearest difference is in-app purchases: KEIBAY at none against モバオク's 1. KEIBAY also leads on ads (none vs shown). モバオク's advantage is update cadence (every 9 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. モバオク sells 1 in-app purchase, starting at $2.99 per month. KEIBAY asks for nothing beyond the download.

モバオク ships an update every 9 days, KEIBAY every 3 weeks. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | モバオク | KEIBAY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/and/id464257422/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 63.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 67 MB | 28 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Mobaoku Co.,Ltd.](https://appshunter.io/developer/464257425) | [WAKI SHOKAI K.K.](https://appshunter.io/developer/1211580032) |

## What reviewers say

### モバオク

[App page](https://appshunter.io/ios/app/and/id464257422)

This platform allows users to easily list and sell items through auctions and a flea market format. It offers a commission-free selling experience with robust support for beginners and experienced users alike. Discover and purchase a wide variety of goods, from fashion and electronics to rare collectibles.

**Highlights:** Free selling fees, Easy item listing, Auction and flea market formats, Wide variety of goods, Beginner-friendly, Robust support

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| モバオク利用料 | $2.99 | per month |


### KEIBAY

[App page](https://appshunter.io/ios/app/keibay/id1211580033)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is モバオク free?

モバオク is free to download, with in-app purchases available.

### Is KEIBAY free?

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

### Do モバオク or KEIBAY have ads?

モバオク shows ads; KEIBAY does not.

### Which is updated more often, モバオク or KEIBAY?

モバオク ships an update every 9 days, and KEIBAY every 3 weeks. Most recently, モバオク was updated on October 19, 2026 and KEIBAY on October 12, 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.*