Hotfire runs your test, build and inspection procedures on iPad. Readings are checked against limits as they're typed, each step is signed by the right person, and nobody can quietly change the record. It keeps working with no internet.
Read PT-101 after pressurization is stable.
Test conductor polls every station. The run can't pass this point while a deviation is open.
Performed by the technician, witnessed by quality.
Try it: type a reading above 320 to see a deviation open. Example data; the real app runs on iPad.
The discipline of a big procedure platform in an app your technicians can learn in an afternoon.
Build the procedure with steps, limits, holds and required signatures. A reviewer releases revision A.
Start a run against a serial number. Readings are checked as they're typed and steps are signed in order.
Something's wrong in the procedure? The technician proposes a redline and the engineer approves it from their own iPad.
Deviations are dispositioned, the run is closed, and the record is exported for the customer or the auditor.
iPads on the same Wi-Fi find each other and stay in sync. No server, no internet, nothing to install in your IT closet.
Per-person pricing pushes teams to share logins, which defeats the audit trail. With Hotfire, every technician, inspector and witness gets their own sign-in at no extra cost.
One iPad for a small shop or a single test stand.
$828 a year
2 to 8 iPads that work together live.
From $2,376 a year (2 iPads)
3 to 25 iPads, more than one site, off-site backup.
From $5,364 a year (3 iPads)
Data that must stay on your own hardware.
From $15,000 a year
Free for student teams (non-commercial, up to 3 iPads). University research labs get 50% off any plan.
Founding customers: the first 10 paying teams get 40% off their first year in exchange for feedback and a case study.
Prices in US dollars. Monthly billing costs 20% more. Setup help: we convert your existing paper procedures for $750 per 10, and remote training is $250 a session.
Hotfire is sold to organizations, not individuals. Licenses are bought from Tycho Systems by invoice or card, never inside the app. After you pay, we confirm your organization (as US export rules require) and email your license key within one business day.
The leading procedure platforms price per person with a 10-person minimum. That works for a 200-person company and shuts out a 6-person one.
Epsilon3 prices are from its public pricing page and its AWS Marketplace listing, checked 26 October 2026: Basic $100 and Pro $200 per user per month, billed yearly with a 10-user minimum (sold on AWS Marketplace as packs of 10 for $12,000 and $24,000 a year). Basic covers up to 50 users. View-only users are free there, so this compares only people who sign. Prices change; check epsilon3.io/pricing.
Teams of 2 to 60 people who run procedures where a skipped step or an unsigned reading costs real money.
By default your data never leaves your iPads. Nothing is sent to us.
Records are stored with AES-256 encryption, using a key held in the iPad's secure Keychain.
Sync traffic is encrypted and authenticated with a key derived from your team code. iPads without it can't join or read anything.
Every action is chained to the one before it with SHA-256. An edited or deleted entry breaks the chain and shows up in the integrity check.
Each person signs with their own PIN or Face ID. Repeated wrong PINs lock the account for longer each time.
Local mode and the on-site server keep controlled technical data inside your building.
We screen every customer and never sell to sanctioned countries or parties.
Hotfire supports the practices behind AS9100, ISO/IEC 17025 and 21 CFR Part 11 (unique signatures, approvals and an audit trail), but it isn't certified or validated for any standard. Your quality system decides how you use it. An independent penetration test is planned before general release.
Before the telescope existed, Tycho Brahe made the most precise astronomical measurements anyone had ever recorded, and he wrote every one of them down. After he died, Johannes Kepler used those records to work out that planets move in ellipses.
Tycho's work mattered because it was precise, recorded, and trustworthy enough for someone else to build on. That's what we build at Tycho Systems.
Hotfire is named for the most procedure-driven hour in engineering: an engine lit on the stand, everyone on the procedure, holds called, every reading recorded and every step signed. Most of your procedures are quieter than that. They deserve the same discipline.
During the beta we invite your team through Apple's TestFlight. At launch, Hotfire is a free download on the App Store and is unlocked with your organization's license key.
Any iPad that runs iPadOS 16 or later. A camera is needed only for photo steps, and Face ID or Touch ID is optional.
No. Hotfire works fully offline, and iPads on the same Wi-Fi network sync with each other directly. The company server on the Business plan is optional, for off-site backup and multiple sites.
Your organization buys a yearly license for a number of iPads. You get one license key; enter it on one iPad and team sync carries it to the rest. New iPads get a 30-day trial. If a license lapses, records stay readable and exportable, and runs already started can be finished.
No. Hotfire is sold only to companies, schools and other organizations, for their own staff and students.
At launch we sell to organizations in the United States only, and we'll add other countries after legal review. We never sell to countries or parties under US sanctions.
Not yet. Hotfire is built for iPad on the floor. A browser version for desks and offices is on our roadmap.
Yes. Send us your procedures as Word, PDF or Excel files, or as an export from the procedure software you use now, and we'll convert them: $750 for up to 10, then $60 each. Founding customers get two converted free during the trial.
We're taking 10 teams into the beta now. You get Hotfire on your iPads through TestFlight, two of your procedures converted for free, and 40% off your first year. Tell us what your team does and how many iPads you'd use.