# U.S. Citizenship Test Prep vs USCIS Naturalize

The clearest difference is update cadence: USCIS Naturalize at every 4 days against U.S. Citizenship Test Prep's every 66 months. U.S. Citizenship Test Prep's advantage is iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. U.S. Citizenship Test Prep sells 1 one-off in-app purchase and USCIS Naturalize sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

U.S. Citizenship Test Prep ships an update every 66 months, USCIS Naturalize every 4 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | U.S. Citizenship Test Prep | USCIS Naturalize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/uscis-naturalize/id6754857751/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 66 months | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 19 MB | 134 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Anjian Yu](https://appshunter.io/developer/1404869329) | [D&B Evergreen Adventures LLC](https://appshunter.io/developer/1559168997) |

## What reviewers say

### U.S. Citizenship Test Prep

[App page](https://appshunter.io/ios/app/us-citizenship-test-prep/id1474029223)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version | $9.99 | one-time |


### USCIS Naturalize

[App page](https://appshunter.io/ios/app/uscis-naturalize/id6754857751)

Prepare for the U.S. citizenship test with this comprehensive study guide. It offers official civics questions, multiple study modes, and multilingual support to help you achieve your goal of becoming a U.S. citizen.

**Highlights:** Official USCIS civics questions, Multiple study and quiz modes, Multilingual support (9 languages), State-specific answer customization, Progress tracking and statistics, Offline study capability

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $9.99 | one-time |
| Family Purchase | $9.99 | one-time |


## Frequently asked questions

### Is U.S. Citizenship Test Prep free?

U.S. Citizenship Test Prep is free to download, with in-app purchases available.

### Is USCIS Naturalize free?

USCIS Naturalize is free to download, with in-app purchases available.

### Do U.S. Citizenship Test Prep or USCIS Naturalize have ads?

Neither U.S. Citizenship Test Prep nor USCIS Naturalize shows ads.

### Which is updated more often, U.S. Citizenship Test Prep or USCIS Naturalize?

U.S. Citizenship Test Prep ships an update every 66 months, and USCIS Naturalize every 4 days. Most recently, U.S. Citizenship Test Prep was updated on November 3, 2026 and USCIS Naturalize on October 30, 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.*