# PlusMinus vs U.S. Citizenship Test Prep

The clearest difference is in-app purchases: PlusMinus at none against U.S. Citizenship Test Prep's 1. PlusMinus also leads on update cadence (every 5 weeks vs every 66 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. U.S. Citizenship Test Prep sells 1 one-off in-app purchase. PlusMinus asks for nothing beyond the download.

PlusMinus ships an update every 5 weeks, U.S. Citizenship Test Prep every 66 months. The most recent releases landed on October 4, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | PlusMinus | U.S. Citizenship Test Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 66 months |
| Size | 12 MB | 19 MB |
| Requires iOS | 10.2 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wim Porters](https://appshunter.io/developer/721738428) | [Anjian Yu](https://appshunter.io/developer/1404869329) |

## What reviewers say

### PlusMinus

[App page](https://appshunter.io/ios/app/plusminus/id1202254490)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is PlusMinus free?

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

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

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

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

Neither PlusMinus nor U.S. Citizenship Test Prep shows ads.

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

PlusMinus ships an update every 5 weeks, and U.S. Citizenship Test Prep every 66 months. Most recently, PlusMinus was updated on October 4, 2026 and U.S. Citizenship Test Prep on September 27, 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.*