PowerMon

PowerMon

By Thornwave Labs

PowerMon is a utility app that connects to physical Bluetooth DC power meters to display real-time battery and energy metrics on iOS and Android.

The App DNA

What makes this app unique?

It removes the need for complex physical wiring in remote monitoring setups, allowing users to track battery health from a distance.

For Owners of RVs, boats, and solar systems who require precise energy storage and battery monitoring.

What does it look like?

Key features

BT-DCPM Device Integrationedge

Scans and connects to physical Bluetooth DC Power Meter hardware to display real-time voltage, current, and power metrics.

Configurable Alertsstandard

Triggers notifications when measured parameters fall outside user-defined ranges.

Firmware Updatesedge

Delivers over-the-air updates to connected BT-DCPM hardware.

How much does it cost?

freeFree application with no IAP or subscription

The app functions as a free companion tool to drive sales of physical battery monitoring hardware.

Velocity

Dormant developmentopaqueShow more...

PowerMon has been inactive for 2,106 days, indicating the project is no longer receiving development support. The last recorded update was a minor bug fix for the About screen, and no further feature development or maintenance has been observed since. The app is effectively in a zombie state with no signs of operational activity.

See all version history

Who built it?

Thornwave Labs

1 app tracked · Utilities

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User Sentiment

What do users think recently?

Fresh user feedback skews thrilled. Users appreciate bluetooth connectivity provides reliable real-time monitoring of battery health without requiring complex physical wiring and energy management features offer professional grade battery diagnostics at a fraction of competitor hardware costs.

How are ratings & reviews evolving?

Google Play
4.54 · 22
App Store
4.40 · 10

What users say, by theme

What Users Love
  • Bluetooth connectivity provides reliable real-time monitoring of battery health without requiring complex physical wiring
  • Energy management features offer professional grade battery diagnostics at a fraction of competitor hardware costs
  • Versatile hardware integration allows users to monitor multiple power sources including solar and alternator outputs
What Frustrates Users
  • Data synchronization and history logging failures occur frequently, causing users to lose critical battery statistics
+ 1 more theme
What Users Want 2 requests inside

17 of 17 recent reviews analyzed · moderate confidence · Thrilled overall

Read the full review analysis

Unlock 1 more frustration theme and 2 user requests, each backed by review evidence.

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Competition

Competitive landscape for PowerMon

How's the Utilities market?

PowerMon operates as a niche hardware-dependent utility with a 4.4-star average rating across 32 total reviews. The lack of updates since 2020 signals a maintenance-mode posture that leaves the app vulnerable to modern, cloud-enabled competitors.

The rivals identified

Amperes 4- battery charge info

By CrioSoft LLC

Amperes competes by providing deep battery health and charging analytics that overlap with PowerMon's monitoring use case, though it targets a broader consumer audience.

  • Massive user base provides global benchmarking data that PowerMon lacks for comparative health analysis.
  • Advanced alert system notifies users of specific charging anomalies, whereas PowerMon requires active manual monitoring.
  • Broad compatibility with standard mobile hardware makes it a universal utility versus PowerMon's niche hardware dependency.
PowerMon vs Amperes 4- battery charge info

Unlock the head-to-head verdict: where this rival wins, and where it loses.

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The Analyst's Read

Key takeaways for PowerMon

Where is it heading?

The utility market is consolidating around cloud-enabled monitoring, leaving PowerMon's local-only architecture increasingly isolated. Without a return to active development, the app will continue to lose its professional user base to competitors that offer modern synchronization and automation features.

  • Persistent data synchronization failures in the latest version erode the daily active habit, which compounds the rating drag already visible on Android.
  • The five-year update gap signals a maintenance-mode posture, leaving the app vulnerable to rivals with active two-week release cadences.

The SWOT

Core Strengths
  • Bluetooth hardware integration provides reliable real-time monitoring
  • Professional-grade diagnostics at a fraction of competitor costs
Critical Frictions 3 weaknesses inside
Growth Levers
  • Custom voltage input labeling would improve clarity for multi-source systems
  • Clearer documentation for advanced relay wiring would reduce support friction
Market Threats 2 threats identified

Next best moves

2 Invest

Audit data-sync logic because it is the top-reported complaint → reduce churn

+ 1 more prioritized move

The counter-intuitive read

The lack of cloud-sync is not just a feature gap…

Read the full take

Feature gaps

Cloud-based history logging (available in BatteryShare but missing here) +1

Since the last report: Development activity has ceased entirely, with the app reaching 2,106 days since the last update. The competitive position is now defined by a permanent maintenance-mode status and the accumulation of unaddressed data-logging regressions.

Bottom line

PowerMon's reliance on legacy hardware integration without cloud-sync support limits its long-term viability against modern rivals. Addressing the data-logging regressions is the only way to retain the professional user base that currently relies on the tool for system maintenance.

Unlock 3 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.

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FAQ

Is PowerMon compatible with any battery monitor?
No, PowerMon is specifically designed to work with BT-DCPM Bluetooth DC Power Meter hardware from Thornwave Labs Inc.
How does PowerMon compare to generic battery apps?
PowerMon provides professional-grade DC power metrics via dedicated hardware, whereas generic apps typically monitor internal mobile battery health.
Does PowerMon support cloud data backup?
No, PowerMon currently relies on local Bluetooth synchronization, and users report that historical data logging is prone to failure.
What is a good alternative for remote monitoring?
Users seeking cloud-based synchronization and remote monitoring should consider apps like BatteryShare or REMS CloudMonitoring.

Sources

  1. [1] Play Store listing, source

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by PowerMon, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

Development activity has ceased entirely, with the app reaching 2,106 days since the last update. The competitive position is now defined by a permanent maintenance-mode status and the accumulation of unaddressed data-logging regressions.

added

Cloud-native threat identification

removed

Remote Power Control removal

added

Custom labeling opportunity

Cite this report

Marlvel.ai. “PowerMon Intelligence Report.” Updated Jul 30, 2026. https://marlvel.ai/apps/powermon

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