# Smart Engines vs idMax SDK

The clearest difference is iOS requirement: Smart Engines at 15.0 against idMax SDK's 17.0. 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 ships an update every 2 months, idMax SDK every 3 months. The most recent releases landed on September 10, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | Smart Engines | idMax SDK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smart-engines/id1593408182/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 290 MB | 161 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Smart Engines](https://appshunter.io/developer/1593408184) | [OCR Solutions, Inc.](https://appshunter.io/developer/1526660568) |

## What reviewers say

### 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


### idMax SDK

[App page](https://appshunter.io/ios/app/idmax-sdk/id6471846023)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Engines free?

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

### Is idMax SDK free?

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

### Do Smart Engines or idMax SDK have ads?

Neither Smart Engines nor idMax SDK shows ads.

### Which is updated more often, Smart Engines or idMax SDK?

Smart Engines ships an update every 2 months, and idMax SDK every 3 months. Most recently, Smart Engines was updated on September 10, 2026 and idMax SDK on August 23, 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.*