Comparison

Syntax City vs Question Sleuth

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

Head to head
About

Syntax City

This interactive app makes learning English grammar and syntax an adventure for elementary and middle school students. It features themed locations, animations, and play-based learning designed by a speech-language pathologist. The app offers detailed progress tracking and positive reinforcement to motivate practice.

Highlights
  • 8 grammar-focused locations
  • 415 questions across multiple difficulty levels
  • Evidence-based learning by a speech-language pathologist
  • Record and playback for self-correction
  • Collectible rewards and trophy case
  • Detailed progress tracking for individual players
  • Supports 1-5 players per session
Features
Read full description

Syntax City – Where Grammar Comes to Life Welcome to Syntax City! As the mayor of this great city, I must warn you — we take our syntax very seriously here. When Syntax City was founded, our mission was to create a place where verbs agree with their subjects, tenses are always correct, and pronouns live in perfect harmony. Now, you and your students are invited to explore the city — where learning grammar becomes an adventure! Syntax City is an interactive, evidence-based app designed by speech-language pathologist Barbara Fernandes, M.S., CCC-SLP. Created for children in elementary and middle school, the app teaches English grammar and syntax through themed locations, animations, and play-based learning — perfect for speech therapy or classroom use. Explore 8 Grammar-Focused Locations Each area of the city targets a specific grammatical goal, with 415 questions across multiple levels of difficulty: • Gym: Do / Does (3 levels, 50 questions) • Beach: Third Person Singular (1 level, 50 questions) • Bakery: Was / Were (3 levels, 52 questions) • Ski Resort: He / She (2 levels, 50 questions) • Farm: Irregular Past Tense (2 levels, 59 questions) • Grocery Store: Has / Have (1 level, 51 questions) • Park: Is / Are (1 level, 50 questions) • Zoo: Regular and Irregular Plurals (3 levels, 54 questions) Each phrase is professionally narrated and paired with high-quality visuals that support comprehension and engagement. Engaging, Evidence-Based Learning • Multiple levels of difficulty adapt to each student’s learning pace • Visual cues reinforce comprehension and grammar recognition • Record and playback feature helps children hear and self-correct syntax • Positive reinforcement with animations, coins, and treasures • 127 collectible rewards across all locations motivate consistent practice After 10 gold coins, students unlock a treasure — each themed to the location they’re practicing. All earned treasures are stored in the player’s personal trophy case, which can be shared via email or printed. Built for Therapy and Classrooms Syntax City supports 1–5 players per session, allowing flexibility for individual or group practice. Students can work on one or multiple grammar targets at a time — creating nearly endless session combinations. Use two-finger zoom gestures to navigate the city map and assign players to specific locations. Each player’s goals, scores, and rewards are tracked individually. Powerful Data Tracking Just like all Smarty Ears apps, Syntax City offers detailed progress tracking: • Tracks accuracy, goals, and performance for each student • Provides color-coded graphs for visual progress review • Displays session summaries and goal mastery trends

About

Question Sleuth

A language game for two or more players where one person hides a star behind a picture and others guess its location by asking questions. Customize categories and play for all ages, making it ideal for families and educators.

Highlights
  • Picture-based guessing game
  • Secret star hiding mechanic
  • Process of elimination gameplay
  • Customizable image categories
  • Use camera or web images
  • Suitable for all ages
Features
Read full description

Calling All Sleuths! Are you clever enough to ask the right questions and find the hidden star? Give it a try with this delightfully entertaining language game designed for two or more players. Pick a player to secretly hide the star behind a picture and let everyone else compete to find it through the process of elimination. Use our image categories or go ahead and make your own using the iPad's camera, your photos or search from the web. Question Sleuth is a great way to practice categories, attributes, "wh" questions, articulation or whatever you like. Game play can be customized for all ages and makes a great family activity! Though designed with educators in mind, Question Sleuth is a fun, imaginative and engaging game to play with family and friends as well.

Verdict

The call

The clearest difference is price: Question Sleuth at $1.99 against Syntax City's $24.99. Question Sleuth also leads on rating (5.0 vs 3.5) and iOS requirement (10.0 vs 15.6). Syntax City's advantage is update cadence (every 11 months vs every 29 months). On review sentiment, ratings volume, ads and in-app purchases 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

Syntax City costs $24.99 and Question Sleuth $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Question Sleuth holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews complicate that: 73% of Syntax City's written reviews are positive against 67% of Question Sleuth's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Syntax City ships an update every 11 months, Question Sleuth every 29 months. The most recent releases landed on September 27, 2026 and October 2, 2026 respectively.

Scorecard4 real differences · 6 level
Syntax City versus Question Sleuth: the parameters behind the verdict, then further details
ParameterSyntax CityQuestion Sleuth
Price$24.99$1.99 — better
Rating3.5 (4 ratings)5.0 (2 ratings) — better
Positive reviews72.7% of reviews — better66.7% of reviews
Number of ratings4 — better2
Update frequencyEvery 11 months — betterEvery 29 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPad
Requires iOS15.610.0 — better
Further details — not scored
Size139 MB118 MB
Age rating4+4+
DeveloperSmarty EarsZorten Software, LLC

Customer experience

Syntax City

All ratings4 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews11 reviews
Positive72.7%
Neutral27.3%
Negative0.0%

Question Sleuth

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

In-app purchases

None

Syntax City

No in-app purchases

None

Question Sleuth

No in-app purchases

Questions

Is Syntax City free?
Syntax City costs $24.99, with no in-app purchases.
Is Question Sleuth free?
Question Sleuth costs $1.99, with no in-app purchases.
Which has better reviews, Syntax City or Question Sleuth?
Question Sleuth is rated higher. Syntax City averages 3.5 out of 5 from 4 ratings, while Question Sleuth averages 5.0 from 2 ratings.
Do Syntax City or Question Sleuth have ads?
Neither Syntax City nor Question Sleuth shows ads.
Which is updated more often, Syntax City or Question Sleuth?
Syntax City ships an update every 11 months, and Question Sleuth every 29 months. Most recently, Syntax City was updated on September 27, 2026 and Question Sleuth on October 2, 2026.

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