Stack the States® vs KeysKeep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stack the States®
Learn about the 50 US states through a fun and interactive game. Collect all states, unlock bonus games, and master capitals, shapes, flags, and more. This app makes geography engaging for all ages.
- Learn state capitals, shapes, and flags
- Interactive drag-and-drop gameplay
- Collect all 50 states on a personalized map
- Unlock four bonus educational games
- Hundreds of unique questions
- Create multiple player profiles
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Stack the States® makes learning about the 50 states fun! Watch the states actually come to life in this colorful and dynamic game! As you learn state capitals, shapes, geographic locations, flags and more, you can actually touch, move and drop the animated states anywhere on the screen. Carefully build a stack of states that reaches the checkered line to win each level. You earn a random state for every successfully completed level. All of your states appear on your own personalized map of the United States. Try to collect all 50! As you earn more states, you begin to unlock the four free bonus games: Map It, Pile Up, Puzzler and Capital Drop. Four games in one! HAVE FUN LEARNING ALL ABOUT THE 50 STATES: ▸ Capitals ▸ State shapes ▸ Abbreviations ▸ Bordering states ▸ Location on the map ▸ Nicknames ▸ Flags ...and more! FEATURES: ▸ Hundreds of unique questions ▸ Interactive map and 50 state flash cards ▸ Choose any of the 50 friendly-looking states as your avatar ▸ Create up to six player profiles ▸ Collect all 50 states and track your progress on a personalized map ▸ Earn FREE bonus games: Map It, Pile Up, Puzzler and Capital Drop ▸ High resolution pictures of famous US landmarks ▸ All games are powered by a realistic physics engine ▸ Fun sound effects and music ▸ iPhone 4 and new iPad Retina Display support ▸ Works on both iPhone and iPad - a universal app FIVE GAMES IN ONE: STACK THE STATES: Build tall piles with states and try to reach the checkered line. MAP IT: Tap the location of the selected state on the map. Try to complete the whole country. PILE UP: The states are piling up! Tap them quickly to get rid of them before they pile too high. PUZZLER: Sit back and relax as you slide the states around and put them together like a jigsaw puzzle. CAPITAL DROP: Match states with their capitals in this fast-paced bonus game. Don't let a state fall! Stack the States® is an educational app for all ages that's actually FUN to play. Try it now and enjoy five games for the price of one! PRIVACY DISCLOSURE Stack the States®: - Does not contain 3rd party ads. - Does not contain in-app purchases. - Does not contain integration with social networks. - Does not use 3rd party analytics / data collection tools. - Does include links to apps by Dan Russell-Pinson in the iTunes App Store (via LinkShare). For more information on our privacy policy please visit: http://dan-russell-pinson.com/privacy/
KeysKeep
This app helps piano students build consistent practice habits through goal setting, smart reminders, and streak tracking. It uses behavioral science principles to make practice engaging and rewarding, visualized through progress tracking and motivational nudges.
- Goal setting and progress tracking
- Smart practice reminders
- Streak visualization and motivation
- Habit formation science
- Minimalist dark theme design
- Distraction-free typography
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KeysKeep: Practice. Progress. Perform. Unlock your musical discipline. ● KeysKeep transforms piano practice into progress through goal setting, reminders, and streaks. Why KeysKeep Works Built on the science of habit formation, KeysKeep combines elegant design with behavioral-economics tools that help students build—and keep—momentum. ● Goal Gradients: Watch your weekly progress fill up as you play, turning effort into satisfying visual rewards. ● Smart Reminders: Never forget to practice—KeysKeep sends daily nudges at your chosen time. ● Streak Tracking: Visualize your practice streaks and stay motivated with gentle loss-aversion reminders. Beautifully Designed for Focus ● Minimalist dark theme with rich gold accents inspired by classic instruments. ● Sharp, modern typography for a distraction-free experience. Built for Musicians, Grounded in Science ● KeysKeep uses proven motivational principles—goal setting, accountability, and streak accumulation—to make daily practice a lasting habit. Who It’s For ● Students building consistent piano routines. ● Parents tracking progress and rewarding effort. ● Teachers guiding students toward measurable improvement. Keep the keys. Keep the streak
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Verdict
The clearest difference is price: KeysKeep at Free against Stack the States®'s $2.99. KeysKeep also leads on rating (5.0 vs 4.4) and update cadence (every 2 weeks vs every 3 months). Stack the States®'s advantage is ratings volume (2.2K vs 3) and chart position (#4 vs unranked). On ads, in-app purchases, device support and iOS requirement 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
KeysKeep is free to download; Stack the States® costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
KeysKeep holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Stack the States® has 2.2K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 91% of Stack the States®'s written reviews are positive against 100% of KeysKeep's.
Stack the States® ships an update every 3 months, KeysKeep every 2 weeks. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.
| Parameter | Stack the States® | KeysKeep |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.4 (2.2K ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 90.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 2.2K — better | 3 |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #4 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 99 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Freecloud Design, Inc. | Emaginesites, LLC |
Customer experience
Stack the States®
KeysKeep
Bugs and requests
Stack the States®
Reported bugs
2 issues- Washington state mapping issue
- Battery drain when app returns to home screen
Requested features
7 requests- Ability to view completed states again
- Add more state facts/trivia
- Include background photos related to states
- Add a country-wide puzzle mode
- Option to turn off state faces
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- Add more mini-games
- Ability to transfer progress between devices
KeysKeep
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Stack the States®
No in-app purchases
KeysKeep
No in-app purchases
Questions
Is Stack the States® free?
Is KeysKeep free?
Which has better reviews, Stack the States® or KeysKeep?
Do Stack the States® or KeysKeep have ads?
Which is updated more often, Stack the States® or KeysKeep?
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