# OSDP Reader vs SKYDOOR

The clearest difference is iOS requirement: SKYDOOR at 12.0 against OSDP Reader's 15. 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.

OSDP Reader ships an update every 3 months, SKYDOOR every 2 months. The most recent releases landed on August 30, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | OSDP Reader | SKYDOOR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/osdp-reader/id6477343162/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 11 MB | 96 MB |
| Requires iOS | 15 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sebury](https://appshunter.io/developer/1329453882) | [Langtao Digital Co., Ltd.](https://appshunter.io/developer/1465690696) |

## What reviewers say

### OSDP Reader

[App page](https://appshunter.io/ios/app/osdp-reader/id6477343162)

This utility app supports the latest OSDP card reader version 2.2. It offers extensive mobile virtual card number settings, including Wiegand and OSDP output formats, keypad settings, and LED light customization.

**Highlights:** OSDP 2.2 support, Mobile virtual card number, Wiegand output format settings, OSDP output format settings, Keypad output format settings, LED light color customization, Backlight setting

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

**In-app purchases:** none


### SKYDOOR

[App page](https://appshunter.io/ios/app/skydoor/id6717584224)

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

**In-app purchases:** none


## Frequently asked questions

### Is OSDP Reader free?

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

### Is SKYDOOR free?

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

### Do OSDP Reader or SKYDOOR have ads?

Neither OSDP Reader nor SKYDOOR shows ads.

### Which is updated more often, OSDP Reader or SKYDOOR?

OSDP Reader ships an update every 3 months, and SKYDOOR every 2 months. Most recently, OSDP Reader was updated on August 30, 2026 and SKYDOOR 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.*