Sentinel is live.
It isn't finished.
The Field Test is a small group of Airmen using Sentinel for their real PFRA prep and telling me where it falls short. You get the builds before they reach the App Store, Sentinel+ turned on while you're testing, and a direct line to me.
Seats are limited by what one person can actually keep up with — not by a marketing number. More open as capacity allows, so sign up even if a round is already running.
Sign up →What this actually is.
I'm one person. I build Sentinel, I use it for my own PT prep, and I'm the only one testing it before it goes out. That's a problem — I know where everything is, so I stop seeing what's confusing.
The Field Test fixes that. A round runs about 90 days. You use the app the way you'd actually use it, and when something breaks or makes no sense, you tell me. That's the trade: you get the thing early, I get the one thing I can't get any other way.
Builds will have bugs. That's not a disclaimer — it's the job.
What I'm asking of you.
- 1 Use it for your actual PT prep Not a demo run. The real thing — your real numbers, your real test date. That's the only way the cracks show up.
- 2 Tell me what's broken Confusing, wrong, missing, ugly — all of it counts. A sentence is enough. You don't need to write a bug report.
- 3 That's the whole ask No minimum activity. No check-ins. No calls. Leave whenever you want and you never have to tell me why.
Realistically? A message when something breaks, and one longer note after your first week. Maybe twenty minutes across the whole round. If life happens, it happens — that's not a problem and you don't owe me an explanation.
What you get in return.
Builds before anyone else
You see features while they can still be changed, not after they ship.
Sentinel+ turned on for the round
You can't test what you can't see, so the paid features are unlocked while you're testing.
A direct line to me
A private Discord channel for the Field Test. Async — post when you have something, ignore it when you do not.
Your name on what you caught
Feedback that changes something shows up in the changelog, and I note who found it. I can't promise I'll build what you ask for — solo dev, finite hours. I can promise an answer, including "no, and here's why."
How the rounds work.
The Field Test runs in rounds of about 90 days. Near the end of yours, I'll email you: what your feedback actually changed, when the round closes, and a link if you want in on the next one. One click, and you're in the pool for it.
Testers who are actively finding things roll into the next round. Nobody gets removed for going quiet — the round just ends, and you stay on the list for whenever the next one fits you.
When your round ends — don't delete the app
When your round closes you stop receiving new test builds. The one already on your phone keeps working until it expires — TestFlight builds run out 90 days after they're released — and then it won't open any more.
To keep using Sentinel, install it from the App Store over the top of your TestFlight copy.
Do not delete the TestFlight version first. Your assessment history lives on your device, not on a server — deleting the app deletes the history with it. Installing over the top keeps everything.
To be clear about what this isn't
The Field Test is not a free subscription and it isn't Sentinel+ for life. Sentinel+ is unlocked during your round for one reason: you can't test features you can't see.
When your round ends you go back to being a normal user on the App Store build. The free app stays free — calculator, every score, breakdowns, history — and Sentinel+ is a normal in-app purchase if you decide you want it. There is no card involved at any point in the Field Test, and nothing auto-charges when a round closes.
Who I'm seating.
Active Duty, Air National Guard, or Air Force Reserve with a PFRA in front of you. That's the round I'm filling, and the reason is narrow: the only way to find out whether this holds up under pressure is to have someone using it under pressure.
If that's not you — veteran, spouse, DoD civilian, or just curious — sign up anyway. You'll be on the list, and I'll tell you straight when a round fits you rather than leaving you wondering. I'd rather you know where you stand than get silence.
One condition
Participate in good faith. I'll remove someone from a round for being disruptive or harassing, for using the access to attack Sentinel rather than improve it, or for taking a seat and never touching the app. Seats are limited — an unused one costs someone else theirs. That's the entire code of conduct.
Two things before you sign up.
- Use a personal email, not your .mil Military mail gateways routinely eat Apple's TestFlight invites, so a .mil address is likely to just never receive it. Your work address also doesn't belong on a commercial beta.
- You're here as yourself, not as your unit Don't use your rank, duty title, or position, and nothing you say to me will ever be published as an endorsement. This is a commercial product and you're a private individual helping test it.
Sign up.
Three questions. Takes about fifteen seconds.
Could not read that submission. Please try again.
Please enter a valid email address.
Please choose your component.
Please choose when your next PFRA is.
That's a few signups from one connection in a short window. Give it a few minutes, or email support@onesentinel.app.
Signups are temporarily unavailable. Please email support@onesentinel.app.
Something went wrong on our end and your signup didn't save. Please try again, or email support@onesentinel.app and I'll add you by hand.
Your email goes to one place: my list, so I can send you a TestFlight invite and round updates. It isn't sold, isn't shared, and isn't posted to Discord. One click unsubscribes and I delete the rest. Privacy policy.
— Tom Vesser, USAF veteran · Enclave Dev LLC, Spokane WA
Not a government program
Sentinel is an independent commercial product from Enclave Dev LLC. It is not affiliated with, endorsed by, or sponsored by the United States Air Force, the United States Space Force, or the Department of Defense. The Field Test is a private product-testing program run by Enclave Dev, not a military activity.
Scoring reflects our reading of published DAFMAN standards. Your unit's Fitness Assessment Cell and the official system are always authoritative.