US States Trainer vs Unlock HR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
US States Trainer
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.
- 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
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Understanding the geography of the United States begins with knowing America’s 50 states, their capitals and their flags. This knowledge helps provide context for news, travel and history, and builds a strong foundation for understanding regional differences. This app offers a structured learning system designed for long-term retention rather than short-term quiz repetition. At the core is an adaptive spaced repetition system that adjusts review intervals based on your actual memory performance. If you remember an item after a longer interval than expected, the next interval increases. If you hesitate or make a mistake, the interval decreases without resetting your progress. This ensures that your study time focuses exactly on what still needs reinforcement. Two learning modes support different learning preferences. Multiple Choice offers quick practice and is ideal for early recognition training. Self-Assessment strengthens active recall: you try to remember the answer before rating whether you knew it, almost knew it or did not know it. This approach is highly effective for long-term memory. The app includes all 50 U.S. states in a single clear category. You can choose between several question directions, such as State → Capital, Capital → State, State → Flag and Flag → State. You may adjust the configuration at any time without losing progress. Each category has its own test in which all items appear once. Based on your performance, you earn a silver or gold medal, giving you a clear overview of your progress. A full card browser is included for browsing states, capitals and flags independently of learning sessions.
Unlock HR
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The app is a tool for HR professionals to expand their competencies, unlock their hidden HR potential, to transition into an HR professional of the future, and become a relevant and trusted adviser to the business and leaders. The app contains - a free plan with limited free material - 1-on-1 coaching to stand out and unlock the hidden HR potential INFORMATION ABOUT THE APP By signing up, you will get access to subscription(s) that include features such as progress tracking, and offline sync, available to subscribe free of charge. The download of Unlock HR is free of charge. Read our full Terms of Service and our Privacy Policy: https://passion.io/terms-of-service https://passion.io/privacy-policy
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | US States Trainer | Unlock HR |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (22 ratings) — better | — |
| Number of ratings | 22 — better | — |
| Update frequency | Every 3 weeks — better | Every 6 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 32 MB | 91 MB |
| Age rating | 4+ | 4+ |
| Developer | Philipp Straub | Unlock HR |
In-app purchases
US States Trainer
- Pro Version$2.99
Unlock HR
No in-app purchases
Questions
Is US States Trainer free?
Is Unlock HR free?
Do US States Trainer or Unlock HR have ads?
Which is updated more often, US States Trainer or Unlock HR?
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