# AB Library vs Z

The clearest difference is update cadence: Z at every 3 weeks against AB Library's every 10 months. AB Library's advantage is iOS requirement (8.0 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.

AB Library ships an update every 10 months, Z every 3 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | AB Library | Z |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ab-library/id484660000/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 23 MB | 66 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Acuity Brands Lighting, Inc](https://appshunter.io/developer/384447835) | [Z-SOFT COMPANY LIMITED](https://appshunter.io/developer/1803614684) |

## What reviewers say

### AB Library

[App page](https://appshunter.io/ios/app/ab-library/id484660000)

Access the latest marketing collateral and product literature from a leading lighting solutions provider. Quickly find product information, specification sheets, and photometric data. Share catalog pages and locate sales representatives.

**Highlights:** Up-to-date product information, Search by product name/catalog number, Email/share catalog pages, Access specification sheets, Create bookmarks and notes, Find related products, Locate sales representatives

**Features:** macOS Compatibility

**In-app purchases:** none


### Z

[App page](https://appshunter.io/ios/app/z-cloud-workspace/id6759944838)

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

**In-app purchases:** none


## Frequently asked questions

### Is AB Library free?

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

### Is Z free?

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

### Do AB Library or Z have ads?

Neither AB Library nor Z shows ads.

### Which is updated more often, AB Library or Z?

AB Library ships an update every 10 months, and Z every 3 weeks. Most recently, AB Library was updated on October 14, 2026 and Z on October 7, 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.*