Comparison

Syntax City vs Fasteroid

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
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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

Fasteroid

Features
Read full description

Your mission is to use your voice pitch to guide our alien friend through space back home. Game contains practice level to perfect your voice control before entering deep space with deadly asteroids hurling towards you. Collect crystals and try to find the golden comet in each level. A shield power up helps you in difficult situations if you were lucky enough to find one. Automatic voice analysis calibrates game controls to each player's distinct pitch level.

Screenshots

Fasteroid3 screens

Verdict

The call

The clearest difference is price: Fasteroid at $2.99 against Syntax City's $24.99. Fasteroid also leads on device support (3 vs 1) and iOS requirement (13.0 vs 15.6). Syntax City's advantage is update cadence (every 11 months vs every 45 months). On 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 Fasteroid $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Syntax City ships an update every 11 months, Fasteroid every 45 months. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
Syntax City versus Fasteroid: the parameters behind the verdict, then further details
ParameterSyntax CityFasteroid
Price$24.99$2.99 — better
Rating3.5 (4 ratings) — better—
Positive reviews72.7% of reviews—
Number of ratings4 — better—
Update frequencyEvery 11 months — betterEvery 45 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.613.0 — better
Further details — not scored
Size139 MB74 MB
Age rating4+4+
DeveloperSmarty EarsOutloud

In-app purchases

None

Syntax City

No in-app purchases

None

Fasteroid

No in-app purchases

Questions

Is Syntax City free?
Syntax City costs $24.99, with no in-app purchases.
Is Fasteroid free?
Fasteroid costs $2.99, with no in-app purchases.
Do Syntax City or Fasteroid have ads?
Neither Syntax City nor Fasteroid shows ads.
Which is updated more often, Syntax City or Fasteroid?
Syntax City ships an update every 11 months, and Fasteroid every 45 months. Most recently, Syntax City was updated on September 9, 2026 and Fasteroid on September 24, 2026.

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