# LUMEN Impra vs SherlockTrainer

The clearest difference is in-app purchases: SherlockTrainer at none against LUMEN Impra's 4. LUMEN Impra's advantage is update cadence (monthly vs every 3 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. LUMEN Impra sells 4 one-off in-app purchases. SherlockTrainer asks for nothing beyond the download.

LUMEN Impra ships an update monthly, SherlockTrainer every 3 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | LUMEN Impra | SherlockTrainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lumen-impra/id6759300226/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 374 MB | 7 MB |
| Requires iOS | 26.2 | **26.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CFMS LLC](https://appshunter.io/developer/1805653908) | [Kevin Haggard](https://appshunter.io/developer/1870413831) |

## What reviewers say

### LUMEN Impra

[App page](https://appshunter.io/ios/app/lumen-impra/id6759300226)

This app enhances magic performances by capturing real-time strokes and recognizing handwriting. It seamlessly broadcasts results to various devices, offering a polished interface for magicians to perform with confidence.

**Highlights:** Real-time stroke capture, Handwriting recognition, Broadcast to multiple devices, Polished user interface, Designed for professional performers

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Music Peek | $29.99 | one-time |
| Dictionary SpinOff | $34.99 | one-time |
| Lottery Prediction | $99.99 | one-time |
| Pro Club | $299.99 | one-time |


### SherlockTrainer

[App page](https://appshunter.io/ios/app/sherlocktrainer/id6760839592)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LUMEN Impra free?

LUMEN Impra is free to download, with in-app purchases available.

### Is SherlockTrainer free?

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

### Do LUMEN Impra or SherlockTrainer have ads?

Neither LUMEN Impra nor SherlockTrainer shows ads.

### Which is updated more often, LUMEN Impra or SherlockTrainer?

LUMEN Impra ships an update monthly, and SherlockTrainer every 3 months. Most recently, LUMEN Impra was updated on October 25, 2026 and SherlockTrainer on October 25, 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.*