# ShelfEx vs ZAI Bids

The clearest difference is update cadence: ZAI Bids at daily against ShelfEx's monthly. ZAI Bids also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

ShelfEx ships an update monthly, ZAI Bids daily. The most recent releases landed on October 2, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ShelfEx | ZAI Bids |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zai-bids/id6761479349/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | — | Free |
| Size | 42 MB | 25 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ShelfEx LLC](https://appshunter.io/developer/1843813282) | [zrock](https://appshunter.io/developer/1702003670) |

## What reviewers say

### ShelfEx

[App page](https://appshunter.io/ios/app/shelfex-shelfscan/id6753582308)

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

**In-app purchases:** none


### ZAI Bids

[App page](https://appshunter.io/ios/app/zai-bids/id6761479349)

Connects customers with businesses through a smart bidding system. Post projects, receive and compare multiple bids, and hire the best match. Businesses can discover opportunities and bid on projects.

**Highlights:** Post projects with detailed requirements, Receive and compare multiple bids, Hire best-matched businesses, Businesses bid on projects, Track projects from bidding to completion, In-app chat with admin support, Real-time notifications

**In-app purchases:** none


## Frequently asked questions

### Is ShelfEx free?

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

### Is ZAI Bids free?

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

### Do ShelfEx or ZAI Bids have ads?

Neither ShelfEx nor ZAI Bids shows ads.

### Which is updated more often, ShelfEx or ZAI Bids?

ShelfEx ships an update monthly, and ZAI Bids daily. Most recently, ShelfEx was updated on October 2, 2026 and ZAI Bids on October 24, 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.*