# Digit Detective vs shlang

The clearest difference is in-app purchases: shlang at none against Digit Detective's 1. shlang also leads on update cadence (every 2 months vs every 39 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Digit Detective sells 1 one-off in-app purchase. shlang asks for nothing beyond the download.

Digit Detective ships an update every 39 months, shlang every 2 months. The most recent releases landed on September 15, 2026 and June 16, 2026 respectively.

## The numbers

| Metric | Digit Detective | shlang |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shlang/id1551317481/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 26 MB | 64 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BrainTrain Inc.](https://appshunter.io/developer/584469134) | [Sergey Samsonov](https://appshunter.io/developer/1551317483) |

## What reviewers say

### 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 |


### shlang

[App page](https://appshunter.io/ios/app/shlang/id1551317481)

Enhance your foreign language learning by easily capturing and reviewing new words and phrases encountered in media and text. This app helps you build vocabulary by tracking known words, providing definitions and examples, and offering spaced repetition for effective recall.

**Highlights:** Vocabulary tracking, Word and phrase definitions, Translation to any language, Spaced repetition for recall, Subtitle search for movies/TV, Text and article import, Auto language detection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Digit Detective free?

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

### Is shlang free?

shlang is free to download, with no in-app purchases.

### Do Digit Detective or shlang have ads?

Neither Digit Detective nor shlang shows ads.

### Which is updated more often, Digit Detective or shlang?

Digit Detective ships an update every 39 months, and shlang every 2 months. Most recently, Digit Detective was updated on September 15, 2026 and shlang on June 16, 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.*