# Greenwich Library vs NBTC e

The clearest difference is iOS requirement: NBTC e at 12.1 against Greenwich Library's 16.0. 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 ships an update every 3 months, NBTC e every 4 months. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Greenwich Library | NBTC e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/greenwich-library/id834617596/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 22 MB | 21 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Greenwich Library](https://appshunter.io/developer/1581680369) | [Office of The National Broadcasting and Telecommunications Commission](https://appshunter.io/developer/721507053) |

## 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


### NBTC e

[App page](https://appshunter.io/ios/app/nbtc-e-library/id955374020)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Greenwich Library free?

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

### Is NBTC e free?

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

### Do Greenwich Library or NBTC e have ads?

Neither Greenwich Library nor NBTC e shows ads.

### Which is updated more often, Greenwich Library or NBTC e?

Greenwich Library ships an update every 3 months, and NBTC e every 4 months. Most recently, Greenwich Library was updated on September 22, 2026 and NBTC e on September 14, 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.*