Volteec vs Shellbee
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Volteec
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Advanced UPS monitoring for self-hosted environments. Requires a backend server (NUT or Volteec Backend). Volteec is a private, read-only UPS status viewer for iPhone and iPad, designed for homelab and self-hosted setups. Connect the app to your own monitoring backend to see: • UPS status (Online / On Battery / Offline) • Battery percentage and runtime (when available) • Load and voltage details (when available) • Real-time updates Optional push alerts are available via Relay for critical status changes. Note: Push alerts require your monitoring server to be reachable from the internet over HTTPS. If the server is offline or only accessible locally, notifications won’t be delivered. No Volteec account is required by default. The app does not collect personal data.
Shellbee
Control and configure your Zigbee devices directly from your mobile device. Monitor network health, manage device settings, and update firmware with a native, cloud-free experience. Requires a running Zigbee2MQTT server.
- Real-time network map
- Device control and configuration
- Firmware updates with Live Activities
- Multi-bridge support
- Customizable Home screen
- Offline device documentation
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Your Zigbee network, in your pocket and on your iPad. Shellbee is a native app for Zigbee2MQTT. It connects straight to your bridge and gives you a fast, Apple-native way to watch, control and configure every device, with no cloud in between. REQUIRES A ZIGBEE2MQTT SERVER Shellbee is a client app. You need your own running Zigbee2MQTT instance and an access token. Local and remote setups both work. SEE EVERYTHING AT A GLANCE • A Home screen built from cards you choose and order: Bridge Health, Network, Link Quality, Batteries, Vendors and Activity. • Needs attention shows offline devices, low batteries and weak signal before you go looking. • A live Network Map of your whole mesh, with scan progress, filters and quick look (iPad). • An Activity Center that shows what your devices are doing as it happens. CONTROL AND CONFIGURE • Controls are generated from each device's Zigbee2MQTT exposes: lights, switches, covers, fans, locks, climate and sensors. • Every setting is grouped the same way on every device, using Zigbee2MQTT's own names. • Groups and scenes: browse, edit members, rename, drag devices in. • Favorites, filters and one search across devices, groups and the device library. • Bridge settings for MQTT, serial, network, OTA, logging, availability, Home Assistant and more. PAIR AND UPDATE WITH CONFIDENCE • Permit join and a step-by-step pairing guide with live progress. • Firmware updates with progress in Live Activities on your Lock Screen and Dynamic Island. • Offline device documentation for how to pair and what each device can do. MORE THAN ONE BRIDGE Connect several bridges at once and see them side by side. Each has its own colour and initial, and single-bridge users see nothing extra. MADE FOR IPHONE AND IPAD • Full iPad workspace with a sidebar, details side by side and extra windows. • Six colour themes: Standard, Honey, Meadow, Harbor, Lavender and Ember. • Real-time WebSocket connection over ws:// or wss://, with Bonjour discovery for .local hosts. • Built in SwiftUI with Live Activities, so it feels fast and native, not like a wrapped web page. PRIVATE BY DESIGN • Talks only to the bridge you choose. No ads, no tracking, no analytics and no developer server. • Access tokens are stored in the iOS Keychain. • Crash reporting is optional and off by default. Nothing is sent unless you say so, and reports never include your bridge address, token or device names. OPEN SOURCE Shellbee is licensed under AGPL v3, with the source on GitHub.
Screenshots
Verdict
The clearest difference is update cadence: Shellbee at every 2 days against Volteec's every 3 weeks. Shellbee also leads on iOS requirement (17.5 vs 26.2). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Volteec ships an update every 3 weeks, Shellbee every 2 days. Both last shipped on October 31, 2026.
| Parameter | Volteec | Shellbee |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.2 | 17.5 — better |
| Further details — not scored | ||
| Size | 6 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | TEODOR DRAGAN | Kenneth Berg |
In-app purchases
Volteec
No in-app purchases
Shellbee
No in-app purchases









