# Lock Supplier vs OSDP Reader

The clearest difference is update cadence: OSDP Reader at every 3 months against Lock Supplier's every 46 months. Lock Supplier's advantage is iOS requirement (12.0 vs 15). 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.

Lock Supplier ships an update every 46 months, OSDP Reader every 3 months. The most recent releases landed on September 30, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Lock Supplier | OSDP Reader |
| --- | --- | --- |
| 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 46 months | **Every 3 months** |
| Monetization | — | Paid |
| Size | 28 MB | 11 MB |
| Requires iOS | **12.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hangzhou Sciener Smart Technology](https://appshunter.io/developer/1360996795) | [Sebury](https://appshunter.io/developer/1329453882) |

## What reviewers say

### Lock Supplier

[App page](https://appshunter.io/ios/app/lock-supplier/id1643820520)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Lock Supplier free?

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

### Is OSDP Reader free?

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

### Do Lock Supplier or OSDP Reader have ads?

Neither Lock Supplier nor OSDP Reader shows ads.

### Which is updated more often, Lock Supplier or OSDP Reader?

Lock Supplier ships an update every 46 months, and OSDP Reader every 3 months. Most recently, Lock Supplier was updated on September 30, 2026 and OSDP Reader on October 14, 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.*