SUNBEAMsystem vs Mqtizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SUNBEAMsystem
Monitor your lithium battery's charge status, voltage, current, and temperature. Retrieve cycle count and capacity information for a comprehensive overview. The app automatically reconnects via Bluetooth.
- Real-time charge status
- Voltage and current monitoring
- Battery temperature display
- Cycle count retrieval
- Capacity loss information
- Automatic Bluetooth reconnection
Read full descriptionHide full description
Please, get attention: This version isn't supported anymore, so please, migrate onto our Multi Connect application: https://apps.apple.com/us/app/sunbeamsystem-multi-connect/id1497362864. However, you could still use this version, if you don't want to get more functionality and supported hardware. SUNBEAMsystem Smart L I T H I U M is fully Plug & Play which means you can replace your old lead acid with out any hassles or need in extra equipment. The app gives you full control and overview of your charge status and other important parameters. App functionality: Main Screen is configurable and will show The state of Charge, Voltage, Charge and Discharge current, The used capacity in Ah, Projected time until full and empty, finally also the temperature inside the battery. You can retrieve cycle count as well as the calculated capacity. This is improves the second hand value as well as giving you immediate information regarding any capacity loss due to for example low temperature. Temperature is configurable (C/F) The Connection to the battery uses low consumption Bluetooth and after connection the app will try to stay connected to the battery in the background as long as you do not disconnect (by hitting the back button). This means you might move out of contact (leave your vessel) and then return and the app will reconnect automatically. The Bluetooth connection strength is shown in the upper right corner.
Mqtizer
Read full descriptionHide full description
Mqtizer is an MQTT client for iPhone, iPad and Mac that your whole team shares. Set up a broker once, or let your AI assistant do it, and everyone has it. I built Mqtizer because every field trip started the same way. Someone texts around a host, a port and a password, and half the team mistypes it. Here, one person adds the broker on a laptop. Everyone else opens the app on their phone and it is already there. Your AI assistant does the setup Connect Claude, Cursor or any MCP client to your workspace with a token you create in the app. With Write access it adds brokers and writes payload templates. Any token can test connections. Broker passwords never reach the model; it only sees [redacted]. Workspaces Keep brokers in a workspace per site, client or project. Invite people by email and give each a role. They connect without anyone passing the password around. Messages read like a chat Subscribe to topics with + and # wildcards and watch each message land in a stream grouped by topic. Search it, filter by direction, QoS or retained flag, and export a selection as text, JSON or CSV. Your messages stay on your device The app connects straight to your broker. Your MQTT messages never go through our servers, and the log is saved only on your device, so it survives a dropped connection or a restart. Sensors in your payload The sensor keyboard reads your phone's accelerometer, GPS, battery and more, and drops the live value into the payload with a tap. Simulate a device when the device you are testing is the phone in your hand. Templates Save a JSON payload once and the whole workspace can use it. Nobody retypes it. Test a broker Need 200 messages? Set a count or a duration and burst publishing sends them, so you can load-test a broker without tapping send all afternoon. Details MQTT 3.1.1 and 5.0 over TCP, WebSockets and TLS, with your own CA and client certificates. Dark mode is the default. Free plan: 2 workspaces, each with 3 team members and 3 brokers, and 10 templates, with every feature included. Questions or ideas go to support@mqtizer.com.
Screenshots
Verdict
The clearest difference is ads: SUNBEAMsystem at none against Mqtizer's shown. SUNBEAMsystem also leads on iOS requirement (11.0 vs 15.6). On price, update cadence, 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.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.
| Parameter | SUNBEAMsystem | Mqtizer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 11 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | SUNBEAMsystem AB | Sanyam Arya |
In-app purchases
SUNBEAMsystem
No in-app purchases
Mqtizer
No in-app purchases









