# TRANS BLUE vs Remotable ESP32

The clearest difference is in-app purchases: TRANS BLUE at none against Remotable ESP32's 3. TRANS BLUE also leads on iOS requirement (9.3 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Remotable ESP32 sells 3 in-app purchases, starting at $1.99 per month. TRANS BLUE asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | TRANS BLUE | Remotable ESP32 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | Every 9 days |
| Monetization | Free | — |
| Size | 16 MB | 34 MB |
| Requires iOS | **9.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kazumasa Shimomura](https://appshunter.io/developer/1110502851) | [Satoshi Nishizuka](https://appshunter.io/developer/1581547741) |

## What reviewers say

### TRANS BLUE

[App page](https://appshunter.io/ios/app/trans-blue/id1152536999)

This app allows iOS devices to communicate audio directly with each other using built-in Bluetooth. Simply connect devices, accept the connection request, and then press the microphone button to speak and release to stop. It's designed for simple, direct audio sharing between nearby users.

**Highlights:** Direct Bluetooth audio communication, Device-to-device connection, Simple microphone interface, Audio sharing between iOS devices

**Features:** macOS Compatibility

**In-app purchases:** none


### Remotable ESP32

[App page](https://appshunter.io/ios/app/remotable-esp32/id6596812122)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Light Plan | $1.99 | per month |
| Standard Plan | $4.99 | per month |
| Pro Plan | $9.99 | per month |


## Frequently asked questions

### Is TRANS BLUE free?

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

### Is Remotable ESP32 free?

Remotable ESP32 is free to download, with in-app purchases available.

### Do TRANS BLUE or Remotable ESP32 have ads?

Neither TRANS BLUE nor Remotable ESP32 shows ads.

### Which is updated more often, TRANS BLUE or Remotable ESP32?

TRANS BLUE ships an update every 9 days, and Remotable ESP32 every 9 days. Most recently, TRANS BLUE was updated on October 15, 2026 and Remotable ESP32 on October 25, 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.*