# ORBY Mobile vs Grey District Library

The clearest difference is iOS requirement: ORBY Mobile at 11.0 against Grey District Library's 15.6. 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.

ORBY Mobile ships an update every 5 months, Grey District Library every 3 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ORBY Mobile | Grey District Library |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Size | 6 MB | 50 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Liteputer](https://appshunter.io/developer/1127215931) | [Department of Internal Affairs](https://appshunter.io/developer/1442760439) |

## What reviewers say

### ORBY Mobile

[App page](https://appshunter.io/ios/app/orby-mobile/id1452127427)

**In-app purchases:** none


### Grey District Library

[App page](https://appshunter.io/ios/app/grey-district-library/id1490594191)

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

**In-app purchases:** none


## Frequently asked questions

### Is ORBY Mobile free?

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

### Is Grey District Library free?

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

### Do ORBY Mobile or Grey District Library have ads?

Neither ORBY Mobile nor Grey District Library shows ads.

### Which is updated more often, ORBY Mobile or Grey District Library?

ORBY Mobile ships an update every 5 months, and Grey District Library every 3 months. Most recently, ORBY Mobile was updated on October 26, 2026 and Grey District Library on October 25, 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.*