Comparison

Voltage Energy vs MQTT Commander

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Voltage Energy

Features
Read full description

Лучший способ зарядить твой электрокар Мы сделали зарядку электромобиля такой же простой, как заказ такси. Удобная карта, прозрачные тарифы и история зарядок — всё в твоем телефоне. Elektromobilingiz uchun eng yaxshi quvvatlash usuli Biz elektromobilni quvvatlashni taksi buyurtma qilishdek oson qildik. Qulay xarita, shaffof tariflar va quvvatlashlar tarixi — barchasi telefoningizda. The best way to charge your EV We made EV charging as simple as hailing a ride. A handy map, transparent rates, and charging history — all on your phone.

About

MQTT Commander

Monitor your MQTT broker's activity in real-time with live topic updates and detailed payload inspection. Visualize data trends, manage messages, and publish new ones with advanced options. Troubleshoot connection issues with a guided diagnostic tool.

Highlights
  • Live topic tree with values
  • Detailed payload inspection with sparklines
  • Pinned topics as live tiles
  • Message logging and filtering
  • Publishing messages with QoS and retain
  • 13-stage connection diagnostic tool
  • Privacy-focused data handling
Features
Read full description

Connect to your broker and the topic tree fills in within seconds, with the latest value next to each topic. Tap one to see the value in large type, a sparkline of how it moved, and the JSON split field by field. FOUR SCREENS, ONE JOB EACH • Topics: the tree of what your broker publishes, with filters for what changes, what is retained, what you pinned • Board: pinned topics as live tiles, so one look tells you the greenhouse sits at 21.4 °C and the pump went quiet 6 minutes ago • Log: messages in order, with presets for errors, your own publishes and retained values • Publish: a topic, a payload, Send. QoS, retain, content type and expiry sit one tap away USE IT TO • Watch Home Assistant, Zigbee2MQTT, Mosquitto and ESPHome without opening a laptop • Find the topic a new device announced itself on • Read a JSON payload by field and compare it with the message before • Send a test message and see what the broker answers, including a refusal • Clear a retained payload that keeps coming back WHEN IT WON'T CONNECT Connection Doctor walks the connection in 13 stages and names the one that failed: DNS, TCP, TLS handshake, certificate chain, expiry, hostname, ALPN and SNI, CONNACK, authentication, protocol version, and a write test against the broker ACL. You get the stage, the reason and what to change, instead of a red banner. PRIVACY Values that look like tokens, passwords or keys stay behind a tap. Exported logs carry hashed topics and metadata, no payloads. Anonymous crash and usage diagnostics are on by default and switch off in Settings. No ad tracking, no data sold. PRO The app is free: watch topics, read payloads, publish with QoS and retain, run the Connection Doctor, pin five topics to the Board. Pro is a one-time unlock with no subscription, and it covers the part that runs while you look elsewhere: widgets on the Lock Screen and Home Screen, pins without a limit, history that survives a restart, whole-broker discovery, more broker profiles, one certificate reused across every broker, saved commands with Siri and Shortcuts, log export as CSV or JSON, and the full Doctor report to share. Bought the paid app before it went free? You keep Pro at no cost. WORKS WITH Home Assistant, Mosquitto, Zigbee2MQTT, ESPHome, Node-RED, ESP32 and ESP8266, and any broker speaking MQTT 3.1.1 or 5.0 over TCP, TLS, mTLS or WebSocket. REQUIREMENTS • iOS 17 or later, iPhone and iPad • Local Network access for brokers on your LAN Demo mode lets you look around before you connect anything.

Screenshots

Voltage Energy4 screens
MQTT Commander4 screens

Verdict

The call

Voltage Energy and MQTT Commander are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Voltage Energy versus MQTT Commander: the parameters behind the verdict, then further details
ParameterVoltage EnergyMQTT Commander
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNoNo
Monetization—Freemium
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size32 MB22 MB
Age rating4+4+
DeveloperSSD Software SolutionsVladimir Chemeris

In-app purchases

None

Voltage Energy

No in-app purchases

None

MQTT Commander

No in-app purchases

Questions

Is Voltage Energy free?
Voltage Energy is free to download, with no in-app purchases.
Is MQTT Commander free?
MQTT Commander is free to download, with no in-app purchases.
Do Voltage Energy or MQTT Commander have ads?
Neither Voltage Energy nor MQTT Commander shows ads.

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