# CW MARS Libraries vs CLAMS Library Network

The clearest difference is review sentiment: CW MARS Libraries at 56% against CLAMS Library Network's 0%. CW MARS Libraries also leads on rating (3.8 vs 2.4). CLAMS Library Network's advantage is update cadence (every 5 weeks vs every 4 months). On price, ratings volume, 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.

CW MARS Libraries holds the better App Store score, 3.8 against 2.4. Both are backed by a comparable volume of ratings — 26 and 11 respectively. Written reviews point the same way: 56% of CW MARS Libraries's written reviews are positive against 0% of CLAMS Library Network's.

CW MARS Libraries ships an update every 4 months, CLAMS Library Network every 5 weeks. The most recent releases landed on June 3, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | CW MARS Libraries | CLAMS Library Network |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (26 ratings)](https://appshunter.io/ios/app/cw-mars-libraries/id1434646418/reviews)** | [2.4 (11 ratings)](https://appshunter.io/ios/app/clams-library-network/id6471598057/reviews) |
| Number of ratings | **26** | 11 |
| Positive reviews | **56.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 10 MB | 57 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kenneth Cox](https://appshunter.io/developer/1400443993) | [The Cape Libraries Automated Materials Sharing, Inc.](https://appshunter.io/developer/567536999) |

## What reviewers say

### CW MARS Libraries

[App page](https://appshunter.io/ios/app/cw-mars-libraries/id1434646418)

Access the shared catalog of libraries across Central and Western Massachusetts. Requires a library card and password from a participating CW MARS member library to use.

**Highlights:** Access shared library catalog, Search for books and materials, Manage library account, Find participating libraries

**Features:** macOS Compatibility

**In-app purchases:** none


### CLAMS Library Network

[App page](https://appshunter.io/ios/app/clams-library-network/id6471598057)

Manage your library account from your mobile device. Search the catalog for books, movies, and more, place holds, check due dates, and renew items. You can also use your phone for self-checkout and find library hours and locations.

**Highlights:** Search library catalog, Manage multiple accounts, Track reading history, Check due dates and renew items, Place and manage holds, Mobile self-checkout, View library information

**In-app purchases:** none


## Frequently asked questions

### Is CW MARS Libraries free?

CW MARS Libraries is free to download, with no in-app purchases.

### Is CLAMS Library Network free?

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

### Which has better reviews, CW MARS Libraries or CLAMS Library Network?

CW MARS Libraries is rated higher. CW MARS Libraries averages 3.8 out of 5 from 26 ratings, while CLAMS Library Network averages 2.4 from 11 ratings.

### Do CW MARS Libraries or CLAMS Library Network have ads?

Neither CW MARS Libraries nor CLAMS Library Network shows ads.

### Which is updated more often, CW MARS Libraries or CLAMS Library Network?

CW MARS Libraries ships an update every 4 months, and CLAMS Library Network every 5 weeks. Most recently, CW MARS Libraries was updated on June 3, 2026 and CLAMS Library Network on September 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.*