# USPS Mobile® vs Amazon Flex

The clearest difference is update cadence: Amazon Flex at every 2 weeks against USPS Mobile®'s every 2 months. USPS Mobile®'s advantage is monetization model (free vs free with in-app purchases) and review sentiment (48% vs 33%). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.8 for USPS Mobile® against 4.7 for Amazon Flex. Both are backed by a comparable volume of ratings — 1.6M and 436K respectively. Written reviews are what separate them: 48% of USPS Mobile®'s written reviews are positive against 33% of Amazon Flex's.

USPS Mobile® ships an update every 2 months, Amazon Flex every 2 weeks. Both last shipped on September 24, 2026.

## The numbers

| Metric | USPS Mobile® | Amazon Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.6M ratings)](https://appshunter.io/ios/app/usps-mobile/id339597578/reviews)** | [4.7 (436K ratings)](https://appshunter.io/ios/app/amazon-flex/id1454725763/reviews) |
| Number of ratings | **1.6M** | 436K |
| Positive reviews | **48.3% of reviews** | 33.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | #39 | **#16** |
| Size | 20 MB | 471 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [United States Postal Service](https://appshunter.io/developer/339597581) | [AMZN Mobile LLC](https://appshunter.io/developer/297606954) |

## What reviewers say

### USPS Mobile®

[App page](https://appshunter.io/ios/app/usps-mobile/id339597578)

**Currently charting:** #39 Top Free · Business (US App Store)

Manage your mail and packages on the go. Track shipments, calculate postage, find nearby postal locations, and schedule pickups. Access digital mail previews and request mail holds for convenient postal services.

**Highlights:** Track shipments, Calculate shipping prices, Find Post Office locations, Schedule package pickups, Request mail holds, Digital mail preview

**In-app purchases:** none

**What reviewers like**

- 🚀 Lightning-fast app
- 🔒 Robust security features
- 👍 Convenient for tracking packages
- 💡 Helpful informed delivery feature

**What reviewers complain about**

- 🐛 Buggy and glitchy
- 🔄 Constantly redirecting to website
- 🤔 Confusing user interface
- 🔍 Lacking package management features

**Reported bugs**

- Tracking not working after updates
- Unable to delete delivered packages
- App crashes when trying to track
- Inconsistent package status updates

**Requested features**

- Allow renaming of tracking numbers
- Implement stay-logged-in functionality
- Add push notifications for package updates
- Integrate more USPS services natively


### Amazon Flex

[App page](https://appshunter.io/ios/app/amazon-flex/id1454725763)

**Currently charting:** #16 Top Free · Business (US App Store)

Earn money by delivering packages for a major online retailer. This app provides the technology to make deliveries easy, guiding you from sign-up to your first delivery. Build your own schedule and accept offers when it suits you.

**Highlights:** Package delivery opportunities, Flexible scheduling, In-app delivery guidance, On-road support, Schedule work ahead or same-day

**In-app purchases:** none

**What reviewers like**

- 👍 Great app
- 🚀 Good opportunity
- 💡 Flexible scheduling
- 👍 Decent pay

**What reviewers complain about**

- 🐛 Buggy app
- 🗺️ Poor navigation
- 🤖 Issues with bots/automation
- 💰 Low pay after expenses
- 🚨 Safety concerns

**Reported bugs**

- App crashes and freezes
- GPS issues and wrong directions
- Trouble with check-in and scanning
- Inconsistent earnings reporting

**Requested features**

- Update app frequently
- Improve mapping and navigation
- Provide more transparency on routes
- Improve customer support
- Implement dark mode


## Frequently asked questions

### Is USPS Mobile® free?

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

### Is Amazon Flex free?

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

### Which has better reviews, USPS Mobile® or Amazon Flex?

USPS Mobile® is rated higher. USPS Mobile® averages 4.8 out of 5 from 1.6M ratings, while Amazon Flex averages 4.7 from 436K ratings.

### Do USPS Mobile® or Amazon Flex have ads?

Neither USPS Mobile® nor Amazon Flex shows ads.

### Which is updated more often, USPS Mobile® or Amazon Flex?

USPS Mobile® ships an update every 2 months, and Amazon Flex every 2 weeks. Most recently, USPS Mobile® was updated on September 24, 2026 and Amazon Flex on September 24, 2026.

### Which is more popular, USPS Mobile® or Amazon Flex?

USPS Mobile® currently peaks at #39 in the App Store charts, and Amazon Flex at #16. Chart position reflects recent download velocity rather than total install base.

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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.*