Comparison

Lupine Light Control vs SRM PM9

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

Head to head
About

Lupine Light Control

Manage your lighting system directly from your device. Adjust brightness, set custom options, and view detailed information about your lights, including temperature and battery status. Connect your lights easily through a simple pairing process.

Highlights
  • Direct light control
  • Adjustable light levels
  • Set custom extras
  • View light information (temp, battery)
  • Easy device pairing
Features
Read full description

With Lupine Light Control, you have full control over your Lighting System. You can - Control the light directly from the app - Adjust the light levels - Set extras - Get information about your light (temperature, battery voltage, current power) To connect the light with Lupine Light Control for the first time you have to: Piko: Open the app, hold the button of the light pressed until the green LED lights up. Light and app will connect automatically. Wilma/Betty: Open the app, hold the button of the light pressed until 5 green LEDs light up. Release the button. Light and app will connect automatically.

About

SRM PM9

This app provides advanced power measurement for cyclists, offering high accuracy in various conditions. It features magnet-less cadence, left/right balance, and pedal smoothness analysis, connecting seamlessly with ANT+ and Bluetooth devices.

Highlights
  • Magnet-less cadence
  • Left/Right balance measurement
  • Pedal smoothness analysis
  • Automatic temperature compensation
  • ANT+ and Bluetooth LE connectivity
  • Rechargeable battery
  • Zwift compatible
Features
Read full description

Our 9th generation Spider PowerMeter takes our proven formula and updates it with modern features. The result is a PowerMeter that is easier to use, even more accurate, better to repair and has improved connectivity. Thanks to a combination of angle and torque measurement, the PM9 is now able to measure with higher accuracy in very low cadence situations and not round chainrings do no longer have an impact on the recorded data. The integrated temperature sensor allows for maximum accuracy in changing conditions. Users are now able to show L&R balance, as well as combined Pedal smoothness. PowerMeter 9 comes with many usability improvements. First of all is the Magnet-less cadence mode, which allows you to use the PowerMeter without any cadence magnet. PowerMeter 9 can be used with ANT+ and Bluetooth LE. It connects to pretty much any head unit and comes with a mobile App. The App gives you access to live torque data, battery status information, firmware updates and much more. Features: • Magnet-less cadence • Left / Right Balance • Combined Pedal smoothness • Not round chainrings compatible • Automatic temperature compensation with sensor • Rechargeable via magnetic charger • 100 h battery runtime between charges • Compatible with Head-Units using ANT+™ and Bluetooth® • Zwift™ compatible

Screenshots

Lupine Light Control4 screens
SRM PM94 screens

Verdict

The call

The clearest difference is update cadence: SRM PM9 at every 2 months against Lupine Light Control's every 10 months. SRM PM9 also leads on rating (5.0 vs 4.8). Lupine Light Control's advantage is iOS requirement (8.0 vs 15.1). On price, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

SRM PM9 holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

Lupine Light Control ships an update every 10 months, SRM PM9 every 2 months. The most recent releases landed on July 19, 2026 and June 3, 2026 respectively.

Scorecard3 real differences · 7 level
Lupine Light Control versus SRM PM9: the parameters behind the verdict, then further details
ParameterLupine Light ControlSRM PM9
PriceFreeFree
Rating4.8 (4 ratings)5.0 (2 ratings) — better
Positive reviews85.7% of reviews—
Number of ratings4 — better2
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS8.0 — better15.1
Further details — not scored
Size37 MB26 MB
Age rating4+4+
DeveloperLupine Lighting Systems GmbHUlrich Schoberer

Customer experience

Lupine Light Control

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews14 reviews
Positive85.7%
Neutral7.1%
Negative7.1%

SRM PM9

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Lupine Light Control

No in-app purchases

None

SRM PM9

No in-app purchases

Questions

Is Lupine Light Control free?
Lupine Light Control is free to download, with no in-app purchases.
Is SRM PM9 free?
SRM PM9 is free to download, with no in-app purchases.
Which has better reviews, Lupine Light Control or SRM PM9?
SRM PM9 is rated higher. Lupine Light Control averages 4.8 out of 5 from 4 ratings, while SRM PM9 averages 5.0 from 2 ratings.
Do Lupine Light Control or SRM PM9 have ads?
Neither Lupine Light Control nor SRM PM9 shows ads.
Which is updated more often, Lupine Light Control or SRM PM9?
Lupine Light Control ships an update every 10 months, and SRM PM9 every 2 months. Most recently, Lupine Light Control was updated on July 19, 2026 and SRM PM9 on June 3, 2026.

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