# USPS® Rapid Drop vs Ultron IMS

The clearest difference is update cadence: Ultron IMS at every 2 weeks against USPS® Rapid Drop's every 10 months. Ultron IMS also leads on iOS requirement (15.0 vs 26.0). 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.

USPS® Rapid Drop ships an update every 10 months, Ultron IMS every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | USPS® Rapid Drop | Ultron IMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (20 ratings)](https://appshunter.io/ios/app/usps-rapid-drop/id6742847031/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 208 MB | 60 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [United States Postal Service](https://appshunter.io/developer/339597581) | [INFINITY TECHNOLOGIES PTY LTD](https://appshunter.io/developer/1895032448) |

## What reviewers say

### USPS® Rapid Drop

[App page](https://appshunter.io/ios/app/usps-rapid-drop/id6742847031)

Streamline your package drop-offs and label creation with this companion app. Prepare shipping information in advance, group multiple packages for quick scanning, and track your shipments. Find nearby Post Offices and their services.

**Highlights:** Create Dropoff Groups for multiple packages, Prepare shipping label information in advance, Scan QR codes for easy label printing, Track package shipments, Locate nearby Post Offices

**Features:** macOS Compatibility

**In-app purchases:** none


### Ultron IMS

[App page](https://appshunter.io/ios/app/ultron-ims/id6767541590)

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

**In-app purchases:** none


## Frequently asked questions

### Is USPS® Rapid Drop free?

USPS® Rapid Drop is free to download, with no in-app purchases.

### Is Ultron IMS free?

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

### Do USPS® Rapid Drop or Ultron IMS have ads?

Neither USPS® Rapid Drop nor Ultron IMS shows ads.

### Which is updated more often, USPS® Rapid Drop or Ultron IMS?

USPS® Rapid Drop ships an update every 10 months, and Ultron IMS every 2 weeks. Most recently, USPS® Rapid Drop was updated on October 24, 2026 and Ultron IMS on October 24, 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.*