# ELIO vs 클라이 BT (Be a Teacher)

The clearest difference is update cadence: 클라이 BT (Be a Teacher) at every 2 months against ELIO's every 5 months. 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.

ELIO ships an update every 5 months, 클라이 BT (Be a Teacher) every 2 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ELIO | 클라이 BT (Be a Teacher) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 17 MB | 91 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mobilian](https://appshunter.io/developer/532496912) | [Corp. KLAI Education](https://appshunter.io/developer/1707803411) |

## What reviewers say

### ELIO

[App page](https://appshunter.io/ios/app/elio-diy-bluetooth-controller/id1183712828)

This app allows users to create custom Bluetooth controllers for DIY projects. Easily connect motors and LEDs, design your controller interface with a drag-and-drop editor, and bring your creative ideas to life without prior electronics or coding knowledge.

**Highlights:** DIY Bluetooth controller creation, Model editor with drag-and-drop interface, Connect motors, servos, and LEDs, Adjust motor speed, servo direction, and LED brightness, Pre-installed and fixed controller models, Firmware updates for the controller

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

**In-app purchases:** none


### 클라이 BT (Be a Teacher)

[App page](https://appshunter.io/ios/app/bt-be-a-teacher/id6466783781)

**In-app purchases:** none


## Frequently asked questions

### Is ELIO free?

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

### Is 클라이 BT (Be a Teacher) free?

클라이 BT (Be a Teacher) is free to download, with no in-app purchases.

### Do ELIO or 클라이 BT (Be a Teacher) have ads?

Neither ELIO nor 클라이 BT (Be a Teacher) shows ads.

### Which is updated more often, ELIO or 클라이 BT (Be a Teacher)?

ELIO ships an update every 5 months, and 클라이 BT (Be a Teacher) every 2 months. Most recently, ELIO was updated on November 1, 2026 and 클라이 BT (Be a Teacher) on October 30, 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.*