Number Run vs Stack the States® 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Number Run
Embark on an adventure to recover stolen crystals by solving math problems. This game offers engaging practice for all ages, from children learning arithmetic to adults seeking mental stimulation. It features multiple game modes and educational alignment.
- 52 math levels
- Addition, subtraction, multiplication, division
- Endless Mode
- Common Core aligned
- Unlockable outfits
- Developed by graduate students
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Baron von Count has stolen the 4 Mathemagical crystals of the land. Chase him down and bring him to justice or humanity will be forced to count on their fingers forever! Number Run is great practice for boys & girls learning math and adults who just want to stay sharp. Finally, a FUN math game: -Features 52 levels across addition, subtraction, multiplication, and division -Test your skills in Endless Mode -Aligned to Common Core state standards -Unlock new outfits and show your style -Developed by graduate students from Stanford and USC -Retina support for iPhone and iPad -Did we mention it's actually fun? We're gamers, we're developers, we're educators--talk to us at www.facebook.com/numberrun
Stack the States® 2
Learn US geography by stacking animated states to win levels. Collect all 50 states to unlock bonus games and explore an interactive 3D map with detailed information about capitals, cities, and landmarks. Designed for fun and educational play for all ages.
- Interactive 3D map
- Learn state capitals, cities, shapes, landmarks, and flags
- Collect all 50 states
- Unlock bonus games (Map It, Connect 2, Capital Tap)
- Voice mode for independent play
- Hundreds of unique questions
- Multiple player profiles
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Watch the states come to life as you learn US geography! Stack the States® is back and better than ever with new question types, new bonus games, voice mode, 3D graphics and a detailed interactive map! As you learn state capitals, cities, shapes, landmarks, 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 new 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 free bonus games: Map It, Connect 2 and Capital Tap. Four games in one! What’s new in Stack the States® 2: - New question types - New bonus games: Connect 2 and Capital Tap - New voice mode that helps non-readers play independently - Brand new interactive map featuring major cities and a 3D elevation view of each state - Beautiful 3D graphics - 10 different 3D scenes depicting various locations in the US - 3D models of over 90 US landmarks Plus, all the great features that you loved from the original Stack the States®: - 50 flash cards — one for each state - Hundreds of unique questions - Up to six player profiles - A personalized map of the US - Fun sound effects and music - Works on both iPhone and iPad - a universal app Stack the States® 2 is an educational app for all ages that's actually FUN to play. Try it now and enjoy four games for the price of one! PRIVACY DISCLOSURE Stack the States® 2: - 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 Performance Horizon). For more information on our privacy policy please visit: http://dan-russell-pinson.com/privacy/
Screenshots
Verdict
The clearest difference is monetization model: Number Run at free against Stack the States® 2's paid. Number Run also leads on update cadence (every 3 months vs every 9 months). Stack the States® 2's advantage is chart position (#22 vs unranked). On price, rating, review sentiment and ratings volume 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
Number Run costs $2.99 and Stack the States® 2 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.5 for Number Run against 4.5 for Stack the States® 2. Both are backed by a comparable volume of ratings — 1.1K and 1.1K respectively. Written reviews are what separate them: 91% of Number Run's written reviews are positive against 86% of Stack the States® 2's.
Number Run ships an update every 3 months, Stack the States® 2 every 9 months. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.
| Parameter | Number Run | Stack the States® 2 |
|---|---|---|
| Price | $2.99 | $2.99 |
| Rating | 4.5 (1.1K ratings) | 4.5 (1.1K ratings) |
| Positive reviews | 90.9% of reviews — better | 86.0% of reviews |
| Number of ratings | 1.1K | 1.1K — better |
| Update frequency | Every 3 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #22 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 39 MB | 140 MB |
| Age rating | 4+ | 4+ |
| Developer | Ignacio Schiefelbein | Freecloud Design, Inc. |
Customer experience
Number Run
Stack the States® 2
Bugs and requests
Number Run
Reported bugs
2 issues- Occasional crashes or freezes
- Issues with number entry on certain devices
Requested features
3 requests- Ability to adjust difficulty/speed settings
- Progress tracking for parents/teachers
- More variety of skins/characters
Stack the States® 2
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Number Run
No in-app purchases
Stack the States® 2
No in-app purchases
Questions
Is Number Run free?
Is Stack the States® 2 free?
Which has better reviews, Number Run or Stack the States® 2?
Do Number Run or Stack the States® 2 have ads?
Which is updated more often, Number Run or Stack the States® 2?
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