# USPS Postal Exam Prep vs Quibank

The clearest difference is price: Quibank at Free against USPS Postal Exam Prep's $8.99. Quibank also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (16.4 vs 18.5). On ads, in-app purchases and device support there is nothing between them.

Quibank is free to download; USPS Postal Exam Prep costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

USPS Postal Exam Prep ships an update every 3 weeks, Quibank every 3 days. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | USPS Postal Exam Prep | Quibank |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/quibank/id6804125762/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 3 MB | 79 MB |
| Requires iOS | 18.5 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Christopher Enim](https://appshunter.io/developer/1722100693) | [Weitong Wu](https://appshunter.io/developer/6803361208) |

## What reviewers say

### USPS Postal Exam Prep

[App page](https://appshunter.io/ios/app/usps-postal-exam-prep/id6754321097)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quibank

[App page](https://appshunter.io/ios/app/quibank/id6804125762)

Prepare for various professional licenses and certifications with a vast library of free, offline practice tests. Study in English, Simplified Chinese, or Spanish with detailed explanations and official handbook citations. Track your progress and simulate exam conditions with timed mock tests.

**Highlights:** Offline practice tests, 10,000+ free questions, Multilingual support (EN, ZH, ES), Instant feedback with explanations, Review mistakes deck, Timed mock exams, Progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is USPS Postal Exam Prep free?

USPS Postal Exam Prep costs $8.99, with no in-app purchases.

### Is Quibank free?

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

### Do USPS Postal Exam Prep or Quibank have ads?

Neither USPS Postal Exam Prep nor Quibank shows ads.

### Which is updated more often, USPS Postal Exam Prep or Quibank?

USPS Postal Exam Prep ships an update every 3 weeks, and Quibank every 3 days. Most recently, USPS Postal Exam Prep was updated on October 9, 2026 and Quibank 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.*