Comparison

Grammaropolis vs Stack the States® 2

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Grammaropolis

This app makes learning grammar fun by personifying parts of speech as animated characters. Explore neighborhoods with songs, books, videos, and quizzes to master grammar concepts.

Highlights
  • Animated character-based lessons
  • Interactive curriculum maps
  • Songs, books, and videos
  • Quiz-based assessments
  • Progress tracking with badges
  • Covers all parts of speech
Features
Currently charting
Read full description

"The linguistic insights are pure gold." - Wired "Learning grammar has never been more fun!" - School Library Journal "Bright, cheerful, and very entertaining." - Tech & Learning **Featured in the Education App Store: Kickstart Your School Year 2013, 2014, 2015; What's Hot** Grammaropolis is where grammar lives! Hailed as a Schoolhouse Rock for the 21st Century, Grammaropolis uses the parts of speech as animated characters whose personalities are based on the roles they play in the sentence. From the shady pronoun always trying to take the noun’s place to the motherly conjunction who just wants everyone to get along, Grammaropolis achieves the seemingly impossible: we make learning grammar fun! Every part of speech has its own neighborhood that includes a curriculum map with songs, books, videos, and quizzes. Follow the map to earn your badge! The Complete Edition comes with the following neighborhoods: -Nouns -Verbs -Adjectives -Adverbs -Pronouns -Conjunctions -Prepositions -Interjections Our innovative, classroom-proven approach blends character-based content with traditional quiz-based assessment and is designed to address students' varied learning styles. Because the parts of speech are personified based on their roles in the sentence, the characterization provides students with a more effective way to visualize and internalize the roles of the parts of speech and to identify how a sentence is put together. Grammaropolis was created and refined in the ultimate proving grounds: the classroom. We participate in Apple's VPP for Educational Institutions.

About

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.

Highlights
  • 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
Features
Currently charting
Read full description

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

Grammaropolis4 screens
Stack the States® 24 screens

Verdict

The call

The clearest difference is rating: Stack the States® 2 at 4.5 against Grammaropolis's 3.9. Stack the States® 2 also leads on ratings volume (1.1K vs 12) and review sentiment (86% vs 73%). On update cadence, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Grammaropolis costs $5.99 and Stack the States® 2 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Stack the States® 2 holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Stack the States® 2 has 1.1K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 73% of Grammaropolis's written reviews are positive against 86% of Stack the States® 2's.

UpkeepUpdate frequency

Grammaropolis ships an update every 6 months, Stack the States® 2 every 9 months. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

Scorecard4 real differences · 7 level
Grammaropolis versus Stack the States® 2: the parameters behind the verdict, then further details
ParameterGrammaropolisStack the States® 2
Price$5.99$2.99 — better
Rating3.9 (12 ratings)4.5 (1.1K ratings) — better
Positive reviews72.7% of reviews86.4% of reviews — better
Number of ratings121.1K — better
Update frequencyEvery 6 months — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#105#42 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size265 MB140 MB
Age rating4+4+
DeveloperGrammaropolis LLCFreecloud Design, Inc.

Customer experience

Grammaropolis

All ratings12 ratings
Positive66.7%
Neutral8.3%
Negative25.0%
Written reviews11 reviews
Positive72.7%
Neutral0.0%
Negative27.3%

Stack the States® 2

All ratings1,144 ratings
Positive87.4%
Neutral4.5%
Negative8.1%
Written reviews140 reviews
Positive86.4%
Neutral7.1%
Negative6.4%

In-app purchases

None

Grammaropolis

No in-app purchases

None

Stack the States® 2

No in-app purchases

Questions

Is Grammaropolis free?
Grammaropolis costs $5.99, with no in-app purchases.
Is Stack the States® 2 free?
Stack the States® 2 costs $2.99, with no in-app purchases.
Which has better reviews, Grammaropolis or Stack the States® 2?
Stack the States® 2 is rated higher. Grammaropolis averages 3.9 out of 5 from 12 ratings, while Stack the States® 2 averages 4.5 from 1.1K ratings.
Do Grammaropolis or Stack the States® 2 have ads?
Neither Grammaropolis nor Stack the States® 2 shows ads.
Which is updated more often, Grammaropolis or Stack the States® 2?
Grammaropolis ships an update every 6 months, and Stack the States® 2 every 9 months. Most recently, Grammaropolis was updated on October 16, 2026 and Stack the States® 2 on October 17, 2026.
Which is more popular, Grammaropolis or Stack the States® 2?
Grammaropolis currently peaks at #105 in the App Store charts, and Stack the States® 2 at #42. Chart position reflects recent download velocity rather than total install base.

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