# Regula Document Reader vs Smart Engines

The clearest difference is ratings volume: Regula Document Reader at 1.4K against Smart Engines's 2. Smart Engines's advantage is rating (5.0 vs 4.7). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Smart Engines holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Regula Document Reader has 1.4K ratings behind it against 2, so its average is the more settled of the two.

Regula Document Reader ships an update every 6 weeks, Smart Engines every 2 months. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Regula Document Reader | Smart Engines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.4K ratings)](https://appshunter.io/ios/app/regula-document-reader/id1001303920/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smart-engines/id1593408182/reviews)** |
| Number of ratings | **1.4K** | 2 |
| Positive reviews | 67.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 240 MB | 287 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Regula Forensics Inc.](https://appshunter.io/developer/1001303919) | [Smart Engines](https://appshunter.io/developer/1593408184) |

## What reviewers say

### Regula Document Reader

[App page](https://appshunter.io/ios/app/regula-document-reader/id1001303920)

Automatically read and verify various identity documents using your device's camera or gallery. It supports OCR, MRZ, RFID chips, and barcodes for rapid, secure, and offline data extraction and validation.

**Highlights:** Automatic document type recognition, OCR for visual zone and 70+ languages, MRZ reading and parsing (ICAO 9303, ISO 18013), RFID chip data reading (ePassports, eIDs), 1D and 2D barcode reading and parsing, Face matching and liveness check, Offline data processing

**In-app purchases:** none


### Smart Engines

[App page](https://appshunter.io/ios/app/smart-engines/id1593408182)

This app demonstrates advanced AI for recognizing various documents, including IDs, business papers, and codes like QR codes. All processing occurs directly on the device for complete security and speed.

**Highlights:** Identity document recognition, Business document recognition, QR and barcode scanning, On-device processing, Face matching, SDK integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Regula Document Reader free?

Regula Document Reader is free to download, with no in-app purchases.

### Is Smart Engines free?

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

### Which has better reviews, Regula Document Reader or Smart Engines?

Smart Engines is rated higher. Regula Document Reader averages 4.7 out of 5 from 1.4K ratings, while Smart Engines averages 5.0 from 2 ratings.

### Do Regula Document Reader or Smart Engines have ads?

Neither Regula Document Reader nor Smart Engines shows ads.

### Which is updated more often, Regula Document Reader or Smart Engines?

Regula Document Reader ships an update every 6 weeks, and Smart Engines every 2 months. Most recently, Regula Document Reader was updated on November 1, 2026 and Smart Engines on October 27, 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.*