Syntax City vs Leaping Leo
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
Leaping Leo
This voice-activated game encourages children to make sounds and play with their voices. It offers a fun and motivating environment for speech therapy exercises, turning repetitive tasks into entertaining gameplay. Explore 18 exciting levels with Leo and his friends.
- Voice-activated gameplay
- Speech therapy tool
- 18 game levels
- Family play
- Sound production encouragement
- Voice control practice
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Use your voice to jump, fly and leap together with Leo and his friends! Outloud proudly presents the funniest and the most addictive voice-activated game in the market. The Leaping Leo app is a motivating tool for speech therapy and special education, but playing with Leo expands definitely way beyond therapy sessions. Continue playing also at home and find your way through the exciting levels together with your family. In the game Leo or any other character of your choice adventures through 18 different game levels both on the ground and underground, in a shop or a circus and in many other exciting places. With the app you can encourage small children to produce sounds and play with their voice. For the bigger children it provides a hilarious and motivating environment for voice-related exercises based on speech therapist’s instructions. Leo turns repetitive exercises to entertaining game play! With the app you can practise timing, silence and voice control. You can even research the effect of duration of phonation on a human cannon ball! Try the first 4 game levels for free. Full game includes 18 game levels (requires in-app purchase). For further tips and hints on how to play Leaping Leo please go to Outloud website or Outloud YouTube channel.
Verdict
The clearest difference is review sentiment: Syntax City at 73% against Leaping Leo's 0%. Syntax City also leads on rating (3.5 vs 2.0) and in-app purchases (none vs 1). Leaping Leo's advantage is price (Free vs $24.99) and update cadence (every 4 months vs every 11 months). On ads and device support 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
Leaping Leo is free to download; Syntax City costs $24.99 up front. Leaping Leo sells 1 one-off in-app purchase. Syntax City asks for nothing beyond the download.
Syntax City holds the better App Store score, 3.5 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 73% of Syntax City's written reviews are positive against 0% of Leaping Leo's.
Syntax City ships an update every 11 months, Leaping Leo every 4 months. The most recent releases landed on September 27, 2026 and October 8, 2026 respectively.
| Parameter | Syntax City | Leaping Leo |
|---|---|---|
| Price | $24.99 | Free — better |
| Rating | 3.5 (4 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | 72.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 11 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPad | iPad |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 139 MB | 111 MB |
| Age rating | 4+ | 4+ |
| Developer | Smarty Ears | Outloud |
Customer experience
Syntax City
Leaping Leo
In-app purchases
Syntax City
No in-app purchases
Leaping Leo
- Levels 1-18$3.99









