# PIDL vs Sirsi Presales Sandbox Library

The clearest difference is update cadence: PIDL at every 4 weeks against Sirsi Presales Sandbox Library's every 3 months. PIDL also leads on iOS requirement (12.0 vs 16.2). 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.

PIDL ships an update every 4 weeks, Sirsi Presales Sandbox Library every 3 months. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | PIDL | Sirsi Presales Sandbox Library |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Size | 60 MB | 29 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Xentral Methods](https://appshunter.io/developer/464707106) | [SirsiDynix](https://appshunter.io/developer/348010151) |

## What reviewers say

### PIDL

[App page](https://appshunter.io/ios/app/pidl/id914262569)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sirsi Presales Sandbox Library

[App page](https://appshunter.io/ios/app/sirsi-presales-sandbox-library/id6739264607)

**In-app purchases:** none


## Frequently asked questions

### Is PIDL free?

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

### Is Sirsi Presales Sandbox Library free?

Sirsi Presales Sandbox Library is free to download, with no in-app purchases.

### Do PIDL or Sirsi Presales Sandbox Library have ads?

Neither PIDL nor Sirsi Presales Sandbox Library shows ads.

### Which is updated more often, PIDL or Sirsi Presales Sandbox Library?

PIDL ships an update every 4 weeks, and Sirsi Presales Sandbox Library every 3 months. Most recently, PIDL was updated on October 6, 2026 and Sirsi Presales Sandbox Library on October 11, 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.*