Syntax City vs Fasteroid
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Fasteroid
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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
Verdict
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
Syntax City costs $24.99 and Fasteroid $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | Syntax City | Fasteroid |
|---|---|---|
| Price | $24.99 | $2.99 — better |
| Rating | 3.5 (4 ratings) — better | — |
| Positive reviews | 72.7% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 11 months — better | Every 45 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 139 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | Smarty Ears | Outloud |
In-app purchases
Syntax City
No in-app purchases
Fasteroid
No in-app purchases
Questions
Is Syntax City free?
Is Fasteroid free?
Do Syntax City or Fasteroid have ads?
Which is updated more often, Syntax City or Fasteroid?
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