# SerialMagic Keys vs Echo Card AI

The clearest difference is update cadence: Echo Card AI at daily against SerialMagic Keys's monthly. SerialMagic Keys's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SerialMagic Keys sells 9 one-off in-app purchases and Echo Card AI sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

SerialMagic Keys ships an update monthly, Echo Card AI daily. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | SerialMagic Keys | Echo Card AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Free | — |
| Size | 12 MB | 7 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Serialio Ltd.](https://appshunter.io/developer/333178140) | [LUMARION TECHNOLOGIES SDN. BHD.](https://appshunter.io/developer/1889566067) |

## What reviewers say

### SerialMagic Keys

[App page](https://appshunter.io/ios/app/serialmagic-keys/id1122825214)

This app enables wireless RFID GEN2 UHF, NFC, and barcode readers, along with other devices, to send data directly into iOS applications. It supports a wide range of Bluetooth scanners and sensors, making it ideal for inventory, asset tracking, and data collection tasks.

**Highlights:** Connects wireless RFID GEN2 UHF, NFC, and barcode readers, Integrates with sensors, scales, and other wireless devices, Sends data directly into iOS apps, Supports a wide range of Bluetooth scanner models, Enables data input for inventory, asset tracking, and more, Reads and writes NDEF data, Simulates keyboard input for data posting

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enable RFID-NFC User Data Reading & Writing | $19.99 | one-time |
| Built-in NFC reading | $19.99 | one-time |
| Allow Special Key(s) | $19.99 | one-time |
| Enable Data Handling | $24.99 | one-time |
| More supported scanners | $29.99 | one-time |
| Laser Measurer support | $49.99 | one-time |
| S3 Scale Head support | $79.99 | one-time |
| PosiTector 6000 support | $89.99 | one-time |
| Advanced Posting Mode | $99.99 | one-time |


### Echo Card AI

[App page](https://appshunter.io/ios/app/echo-card-ai/id6761963210)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echo Pro Monthly | $4.99 | per month |
| Echo Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is SerialMagic Keys free?

SerialMagic Keys is free to download, with in-app purchases available.

### Is Echo Card AI free?

Echo Card AI is free to download, with in-app purchases available.

### Do SerialMagic Keys or Echo Card AI have ads?

Neither SerialMagic Keys nor Echo Card AI shows ads.

### Which is updated more often, SerialMagic Keys or Echo Card AI?

SerialMagic Keys ships an update monthly, and Echo Card AI daily. Most recently, SerialMagic Keys was updated on October 1, 2026 and Echo Card AI on October 8, 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.*