# Sunderland Libraries vs UpDo Darlin

The clearest difference is update cadence: Sunderland Libraries at every 2 months against UpDo Darlin's every 7 months. 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.

Sunderland Libraries ships an update every 2 months, UpDo Darlin every 7 months. The most recent releases landed on August 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Sunderland Libraries | UpDo Darlin |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | — |
| Size | 50 MB | 75 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Sunderland City Council](https://appshunter.io/developer/1472392795) | [Styler Digital Limited](https://appshunter.io/developer/1506387468) |

## What reviewers say

### Sunderland Libraries

[App page](https://appshunter.io/ios/app/sunderland-libraries/id976185291)

Manage your library account on the go. Search the catalog, renew borrowed items, and place holds on new books directly from your device.

**Highlights:** Manage library account, Search library catalog, Renew borrowed books, Reserve books, Access from iPhone, iPad, iPod Touch

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

**In-app purchases:** none


### UpDo Darlin

[App page](https://appshunter.io/ios/app/updo-darlin/id6737207027)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Sunderland Libraries free?

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

### Is UpDo Darlin free?

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

### Do Sunderland Libraries or UpDo Darlin have ads?

Neither Sunderland Libraries nor UpDo Darlin shows ads.

### Which is updated more often, Sunderland Libraries or UpDo Darlin?

Sunderland Libraries ships an update every 2 months, and UpDo Darlin every 7 months. Most recently, Sunderland Libraries was updated on August 10, 2026 and UpDo Darlin on September 9, 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.*