Plenum Support
Plenum is an airgun tuning app. Connect an FX chronograph, shoot a string, and see where your regulator holds and where more hammer stops paying for itself.
Questions, bug reports and feature requests:
We read everything and usually reply within a few working days.
Common questions
Which chronographs does Plenum work with?
The FX Pocket Pro, FX Pocket V2, FX Pocket D1 and FX True Ballistic, over Bluetooth.
My chronograph doesn't appear in the list
- Switch the chronograph on, and keep it near the phone while Plenum searches.
- Make sure Bluetooth is on and Plenum is allowed to use it. On iPhone, check Settings › Plenum › Bluetooth.
- The Pocket V2 and Pocket D1 don't need pairing. Their shots are broadcast, so they appear as soon as Plenum picks up their signal.
- If another app on your phone or tablet is connected to the chronograph, close it and try again.
Can I use Plenum without a chronograph?
Yes. On the first screen, tap Look around first to explore a complete worked example, and browse the bundled airgun and pellet catalogue. Shots arrive live only from a chronograph.
Do I need an account?
No. Everything you log is stored on your phone. Signing in with Apple (or Google on Android) is optional; it is what lets the app back your strings up to your account and contribute them to the shared record of how each pellet and slug performs.
How do I stop my data leaving my phone?
Go to Profile and turn off Back up and contribute. From then on, nothing leaves your phone.
How do I delete my account?
In the app, go to Profile › Delete account. This erases your account, your backups and your contributions from our server. Everything stored on your phone stays there. If you can no longer open the app, email us from the address linked to your account and we'll delete the account for you.
I moved to a new phone. Can I restore my data?
Not yet. A cloud backup is a copy kept safe off your phone, but restoring it to another device is not built yet.
Is Plenum free?
Yes. There is no subscription, no ads, and nothing locked.
Reporting a problem
It helps if you include:
- the Plenum version (shown in Profile);
- your phone model and its iOS or Android version;
- your chronograph model and firmware version;
- what you did, what you expected, and what happened, ideally with a screenshot.
Privacy
Read the Plenum Privacy Policy.