# US States Trainer vs Unlock HR

The clearest difference is in-app purchases: Unlock HR at none against US States Trainer's 1. US States Trainer's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). On price and device support there is nothing between them.

Both are free to download. US States Trainer sells 1 one-off in-app purchase. Unlock HR asks for nothing beyond the download.

US States Trainer ships an update every 3 weeks, Unlock HR every 6 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | US States Trainer | Unlock HR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (22 ratings)](https://appshunter.io/ios/app/us-states-trainer/id1583038813/reviews)** | — |
| Number of ratings | **22** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 91 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Philipp Straub](https://appshunter.io/developer/1573167056) | [Unlock HR](https://appshunter.io/developer/1743261108) |

## What reviewers say

### US States Trainer

[App page](https://appshunter.io/ios/app/us-states-trainer/id1583038813)

Master U.S. states, capitals, and flags with an adaptive learning system. This app uses spaced repetition and multiple learning modes to ensure long-term retention of geographical knowledge.

**Highlights:** Adaptive spaced repetition system, Multiple choice practice, Self-assessment for active recall, Learn states, capitals, and flags, Multiple question directions, Progress tracking with medals, Card browser for independent study

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $2.99 | one-time |


### Unlock HR

[App page](https://appshunter.io/ios/app/unlock-hr/id6499362213)

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

**In-app purchases:** none


## Frequently asked questions

### Is US States Trainer free?

US States Trainer is free to download, with in-app purchases available.

### Is Unlock HR free?

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

### Do US States Trainer or Unlock HR have ads?

Unlock HR shows ads; US States Trainer does not.

### Which is updated more often, US States Trainer or Unlock HR?

US States Trainer ships an update every 3 weeks, and Unlock HR every 6 months. Most recently, US States Trainer was updated on November 3, 2026 and Unlock HR 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.*