EspBlufi vs S3 Browser
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EspBlufi
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.
- BLE communication with IoT devices
- Device distribution
- Custom data transmission
- Custom data reception
- Search and connect functionality
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EspBlufi is based on the Blufi protocol and communicates with IOT devices via BLE data to implement device distribution and custom data transmission and reception. The system can search successfully and connect only after the external device is started.
S3 Browser
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A clean, simple browser for your S3 storage. Connect to Amazon S3 or any S3-compatible provider to browse, preview and manage your files. No ads, no accounts, no tracking. WORKS WITH YOUR PROVIDER Use AWS S3, or enter a custom endpoint (with a port, if you need one) for S3-compatible services such as Cloudflare R2, Backblaze B2, Wasabi, DigitalOcean Spaces, MinIO, Garage, Ceph and Exoscale. You can save several connections and switch between them. BROWSE AND FIND • Move through folders with the normal back gesture • Switch between list and grid views • Search, filter and sort to find objects quickly • See the details for any object PHOTOS AND VIDEOS • View photos and play videos natively, with no need to download them first • Step through every photo or video in a folder MANAGE FILES • Upload files from your device • Download or share any file • Select several files and share or save them in one go • Rename and delete objects, and create folders UPLOAD FROM ANYWHERE Use the share sheet in Photos, Files or any other app to send files straight to a bucket and folder you choose. PRIVATE BY DESIGN Your access keys are stored in the iOS Keychain. The app connects only to the endpoint you enter. There's no server in between, and nothing is collected or sent anywhere else.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | EspBlufi | S3 Browser |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 3.3 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. | Chris Sewell |
In-app purchases
EspBlufi
No in-app purchases
S3 Browser
No in-app purchases









