# Sdk phone vs idMax SDK

The clearest difference is update cadence: idMax SDK at every 3 months against Sdk phone's every 17 months. Sdk phone's advantage is iOS requirement (12.3 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Sdk phone ships an update every 17 months, idMax SDK every 3 months. The most recent releases landed on October 27, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Sdk phone | idMax SDK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 months** |
| Size | 18 MB | 161 MB |
| Requires iOS | **12.3** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [heyday dev](https://appshunter.io/developer/1295995322) | [OCR Solutions, Inc.](https://appshunter.io/developer/1526660568) |

## What reviewers say

### Sdk phone

[App page](https://appshunter.io/ios/app/sdk-phone/id1582062711)

**Features:** Siri integration

**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 Sdk phone free?

Sdk phone 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 Sdk phone or idMax SDK have ads?

Neither Sdk phone nor idMax SDK shows ads.

### Which is updated more often, Sdk phone or idMax SDK?

Sdk phone ships an update every 17 months, and idMax SDK every 3 months. Most recently, Sdk phone was updated on October 27, 2026 and idMax SDK on September 19, 2026.

---

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