# PingLocker vs Harrow Libraries

The clearest difference is iOS requirement: PingLocker at 9.0 against Harrow Libraries'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.

PingLocker ships an update every 2 months, Harrow Libraries every 5 weeks. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PingLocker | Harrow Libraries |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pinglocker/id1110425617/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 50 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Blackbell Inc.](https://appshunter.io/developer/836005772) | [Harrow London Borough Council](https://appshunter.io/developer/1887848781) |

## What reviewers say

### PingLocker

[App page](https://appshunter.io/ios/app/pinglocker/id1110425617)

This app acts as a digital concierge for residential and commercial buildings, offering on-demand services for everyday needs. It provides a convenient way to manage deliveries, exchanges, and send-offs through secure digital lockers.

**Highlights:** On-demand services for residential and commercial buildings, Digital concierge lockers for deliveries and exchanges, Secure access codes for locker collection, Request services from your room, Book services on-demand or in advance

**Features:** macOS Compatibility

**In-app purchases:** none


### Harrow Libraries

[App page](https://appshunter.io/ios/app/harrow-libraries/id6761115287)

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

**In-app purchases:** none


## Frequently asked questions

### Is PingLocker free?

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

### Is Harrow Libraries free?

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

### Do PingLocker or Harrow Libraries have ads?

Neither PingLocker nor Harrow Libraries shows ads.

### Which is updated more often, PingLocker or Harrow Libraries?

PingLocker ships an update every 2 months, and Harrow Libraries every 5 weeks. Most recently, PingLocker was updated on September 28, 2026 and Harrow Libraries on October 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.*