# EspBlufi vs S3 Browser

The clearest difference is price: EspBlufi at Free against S3 Browser's $0.99. EspBlufi also leads on iOS requirement (10.0 vs 15.0). S3 Browser's advantage is update cadence (fortnightly vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

EspBlufi is free to download; S3 Browser costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EspBlufi ships an update every 2 months, S3 Browser fortnightly. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | EspBlufi | S3 Browser |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/espblufi/id1450614082/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 3 MB | 19 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.](https://appshunter.io/developer/1071176699) | [Chris Sewell](https://appshunter.io/developer/1873376535) |

## What reviewers say

### EspBlufi

[App page](https://appshunter.io/ios/app/espblufi/id1450614082)

This utility app facilitates communication with IoT devices using BLE data. It enables device distribution and custom data transmission, requiring the external device to be powered on for connection.

**Highlights:** BLE communication with IoT devices, Device distribution, Custom data transmission, Custom data reception, Search and connect functionality

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

**In-app purchases:** none


### S3 Browser

[App page](https://appshunter.io/ios/app/s3-browser/id6758526575)

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

**In-app purchases:** none


## Frequently asked questions

### Is EspBlufi free?

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

### Is S3 Browser free?

S3 Browser costs $0.99, with no in-app purchases.

### Do EspBlufi or S3 Browser have ads?

Neither EspBlufi nor S3 Browser shows ads.

### Which is updated more often, EspBlufi or S3 Browser?

EspBlufi ships an update every 2 months, and S3 Browser fortnightly. Most recently, EspBlufi was updated on October 21, 2026 and S3 Browser 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.*