# Syntax City vs Digit Detective

The clearest difference is price: Digit Detective at Free against Syntax City's $24.99. Digit Detective also leads on device support (3 vs 1) and iOS requirement (13.0 vs 15.6). Syntax City's advantage is in-app purchases (none vs 1) and update cadence (every 11 months vs every 39 months). On ads there is nothing between them.

Digit Detective is free to download; Syntax City costs $24.99 up front. Digit Detective sells 1 one-off in-app purchase. Syntax City asks for nothing beyond the download.

Syntax City ships an update every 11 months, Digit Detective every 39 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Syntax City | Digit Detective |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/syntax-city/id561981400/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 39 months |
| Monetization | Paid | — |
| Size | 139 MB | 26 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Smarty Ears](https://appshunter.io/developer/348779167) | [BrainTrain Inc.](https://appshunter.io/developer/584469134) |

## What reviewers say

### Syntax City

[App page](https://appshunter.io/ios/app/syntax-city/id561981400)

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:** macOS Compatibility

**In-app purchases:** none


### Digit Detective

[App page](https://appshunter.io/ios/app/digit-detective-memory-train/id1211833573)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


## Frequently asked questions

### Is Syntax City free?

Syntax City costs $24.99, with no in-app purchases.

### Is Digit Detective free?

Digit Detective is free to download, with in-app purchases available.

### Do Syntax City or Digit Detective have ads?

Neither Syntax City nor Digit Detective shows ads.

### Which is updated more often, Syntax City or Digit Detective?

Syntax City ships an update every 11 months, and Digit Detective every 39 months. Most recently, Syntax City was updated on November 1, 2026 and Digit Detective on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*