Getting started
How do I install it?
It's a web app — no app store needed. Open
the app, then:
•
Android (Chrome): menu ⋮ →
Install app /
Add to Home screen.
•
iPhone (Safari): Share →
Add to Home Screen.
•
Computer (Chrome/Edge): click the install icon in the address bar.
It then opens like a normal app and works offline.
Do I need an account or internet?
No account, and no internet after it loads once. Everything runs on your device.
Switching from another invoicing app? Can I bring my data?
Almost always, yes — two ways:
• Database backup (.db): if your old app makes a .db backup file, go to
Settings → Import backup and pick it. Supported legacy databases load in one tap — customers,
items, invoices and history, instantly.
• CSV mapping: export customers/items from any app or spreadsheet as CSV, then use
Settings → CSV import. You match the columns once and it pulls everything in.
Not sure if your old app's file will work? Email a sample and we'll check it for you.
Starting fresh?
Tap Start fresh on the welcome screen. It sets up payment terms, payment methods,
invoice numbering and a sample invoice so you're not staring at blank screens. Add your company in
Settings → Company profile, then make your first invoice from Home → Invoices → +.
Your data & backups
Where is my data stored?
On your device, in a single SQLite database you own — not on our servers.
We can't see it, sell it, or lose it. That also means backups are your responsibility, and we
make that easy:
How do I back up?
Two ways, use either or both:
• Settings → Sync & Backup → connect your own Dropbox or Google Drive — it keeps a synced
copy automatically and across your devices.
• Settings → Backup / Export .db → saves a file you can keep anywhere. Do this weekly; the app
reminds you after 7 days.
How do I restore or move to a new phone?
Install the app on the new device → Settings → Import .db → pick your latest
backup (or reconnect the same Dropbox/Drive folder). One tap, everything's back.
iPhone users, important: if you don't open the app for about 7 days, iOS can
clear browser-stored data. Connect Sync or export a backup so a restore is one tap — don't rely on the
on-device copy alone.
Buying & support
What does it cost?
$49 one-time for the founding license (first 25 techs), then $79. No subscription,
no monthly fee. You get lifetime use, free updates to the core app, and email support for 12 months
(24–48h, business days; best-effort after). Optional add-ons — AI diagnosis, hosted sync, the
annual code refresh — are separate and cancellable anytime; the app works forever without them.
Refunds?
14-day money-back guarantee, no questions — email us within 14 days and we refund in full.
See the
refund policy.
How do I get help?
Email
support@faultexpert.com — you're talking
to the field tech who built it and invoices his own jobs with it. Target reply time:
24–48 hours
(business days).