IoTMeter vs Oppex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IoTMeter
This application provides a user interface for managing smart devices that measure electrical quantities and control EVSE charging. It optimizes the use of photovoltaic power for heating appliances and hot water storage, enabling wireless communication with various energy systems.
- Device setup and user interface
- Electrical quantity measurement
- EVSE charging current control
- PV power utilization optimization
- Wireless communication with PV inverters
- Standalone function capability
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The IoTMeter application offers complete setup and user interface for IoTMeter, Smartmodule, and PV-router devices. The IoTMeter device is used to measure basic electrical quantities (voltage, power, current, etc.). Additionally, IoTMeter allows control of the EVSE (Electric Vehicle Supply Equipment) charging current, which is influenced either by the current household consumption or by the production of a photovoltaic power plant. The PV-router is a smart Wi-Fi control system with a wattmeter for optimizing the utilization of overflows from a photovoltaic power plant into heating appliances and hot water storage such as boilers, storage tanks, pools, etc. It enables direct wireless communication with PV inverters, heat pumps, or operates as a standalone function.
Oppex
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Introducing Oppex On-Call Agents: Oppex On-Call Agents are purpose-built for distributed, cloud-native, and AI-driven environments, helping teams focus on critical issues, reduce operational overhead, and deliver a seamless, connected customer experience during incidents.
Screenshots
Verdict
IoTMeter and Oppex are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
IoTMeter ships an update every 3 weeks, Oppex fortnightly. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.
| Parameter | IoTMeter | Oppex |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17 | 16.4 — better |
| Further details — not scored | ||
| Size | 35 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavel Lpa | Oppex |
In-app purchases
IoTMeter
No in-app purchases
Oppex
No in-app purchases
