# 서울시 안심택배함 vs Brain L

The clearest difference is update cadence: 서울시 안심택배함 at every 3 weeks against Brain L's every 5 months. 서울시 안심택배함 also leads on iOS requirement (10.0 vs 16.0). 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.

서울시 안심택배함 ships an update every 3 weeks, Brain L every 5 months. The most recent releases landed on October 5, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 서울시 안심택배함 | Brain L |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free | — |
| Size | 19 MB | 86 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Ryu SiYoun](https://appshunter.io/developer/1020554071) | [Seunghun Choi](https://appshunter.io/developer/1653894539) |

## What reviewers say

### 서울시 안심택배함

[App page](https://appshunter.io/ios/app/id1497249673)

This app allows users to easily retrieve packages from secure lockers without needing authentication numbers. It offers features like finding packages using a secure number, re-opening lockers, and requesting authentication numbers via KakaoTalk. Users can also manage deliveries and make payments directly within the app.

**Highlights:** Retrieve packages without authentication numbers, Find packages using secure numbers, Re-open lockers within 60 seconds, Request authentication via KakaoTalk, In-app payment for locker usage, View all incoming deliveries

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

**In-app purchases:** none


### Brain L

[App page](https://appshunter.io/ios/app/brain-l-smart-bicycle-lock/id6444325271)

**In-app purchases:** none


## Frequently asked questions

### Is 서울시 안심택배함 free?

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

### Is Brain L free?

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

### Do 서울시 안심택배함 or Brain L have ads?

Neither 서울시 안심택배함 nor Brain L shows ads.

### Which is updated more often, 서울시 안심택배함 or Brain L?

서울시 안심택배함 ships an update every 3 weeks, and Brain L every 5 months. Most recently, 서울시 안심택배함 was updated on October 5, 2026 and Brain L on October 20, 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.*