# Greenwich Library vs Acorn Catalog

The clearest difference is rating: Greenwich Library at 4.7 against Acorn Catalog's 3.4. Greenwich Library also leads on review sentiment (100% vs 67%). Acorn Catalog's advantage is ratings volume (15 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Greenwich Library holds the better App Store score, 4.7 against 3.4. That said, the two scores are not equally well evidenced: Acorn Catalog has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Greenwich Library's written reviews are positive against 67% of Acorn Catalog's.

Greenwich Library ships an update every 3 months, Acorn Catalog every 5 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Greenwich Library | Acorn Catalog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/greenwich-library/id834617596/reviews)** | [3.4 (15 ratings)](https://appshunter.io/ios/app/acorn-catalog/id1468024977/reviews) |
| Number of ratings | 3 | **15** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 22 MB | 10 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Greenwich Library](https://appshunter.io/developer/1581680369) | [Bibliomation, Inc.](https://appshunter.io/developer/587708969) |

## What reviewers say

### Greenwich Library

[App page](https://appshunter.io/ios/app/greenwich-library/id834617596)

Easily search and discover titles from the library catalog on your mobile device. Manage holds, renew items, and save favorite books. Get library location and hours information.

**Highlights:** Search library catalog, Place and manage holds, Renew borrowed items, Save titles for later, View book details and reviews, Check item availability and location, Library location and hours

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

**In-app purchases:** none


### Acorn Catalog

[App page](https://appshunter.io/ios/app/acorn-catalog/id1468024977)

Access public library resources across Connecticut. Search the catalog, place holds, manage checked-out items, and renew borrowed materials. Requires a library card from a Bibliomation member library.

**Highlights:** Search library catalog, Place holds on items, Review checked-out items, Renew borrowed materials, Access 63 public libraries

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Greenwich Library free?

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

### Is Acorn Catalog free?

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

### Which has better reviews, Greenwich Library or Acorn Catalog?

Greenwich Library is rated higher. Greenwich Library averages 4.7 out of 5 from 3 ratings, while Acorn Catalog averages 3.4 from 15 ratings.

### Do Greenwich Library or Acorn Catalog have ads?

Neither Greenwich Library nor Acorn Catalog shows ads.

### Which is updated more often, Greenwich Library or Acorn Catalog?

Greenwich Library ships an update every 3 months, and Acorn Catalog every 5 months. Most recently, Greenwich Library was updated on October 23, 2026 and Acorn Catalog 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.*