v2.0 · 25 calculators · NZS 3604 + WorkSafe PDFs included

Every tool of your trade.
One Kiwi app.

Timer · 25 NZ tradie calculators · GPS clock-on · weather impact · NZ Building Code PDFs · one-tap timesheet → Xero invoice. The whole worksite, in your back pocket.

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★★★★★ 4.9 from 280+ tradies Free 14-day trial · no card Works offline on site

9:41

Welcome, Challis

Mon 27 Apr · clear morning

On the tools · live

Te Aro Renovations

Bathroom re-fit · 14 Cuba St

Earning live $312.45 02:18:14 · $95/hr

Quick actions

Timer

Invoice

Photo

Expense

Home

Weather

Tools

Money

You

Live earnings

$312.45

02:18:14 elapsed · $95/hr

25 NZ calculators

Concrete · roof · stairs

Multi-shape · NZ rules

m³ ° $ π V

Invoice INV-024

$1,281.38

incl. 15% NZ GST

Paid · 2 min ago

Calculators

NZ reference docs

Theme palettes

14d

Free trial

4.9★

From 280+ tradies

Built for NZ tradies — no fluff, no offshore add-ons.

NZ GST invoicing
Xero export
Offline on site
NZ Building Code · WorkSafe
7-day site weather
Installs on iPhone & Android

References help on site. Always confirm current standards and project requirements with your local authority.

How it works

From boots-on-site to bank in 60 seconds.

Three steps. No spreadsheets, no chasing receipts, no Sunday paperwork.

Walk on site, timer starts

GPS sees you arrive at your job. The earnings ticker rolls live at your charge-out rate — every second visible on the lock-screen.

Earning live $95/hr

Tap stop. Timesheet saves itself.

Job, client, hours, rate, GST — all auto-filled from the timer. Add materials, travel, and a photo. Done in 8 seconds.

4.7 h logged $446.50

Invoice flies to Xero, paid same day.

One tap turns a timesheet into a NZ-GST invoice. PDF + Xero export, emailed to the client. Most land paid within 48 hours.

INV-024 sent $1,281.38

Features

Everything for site, nothing you don't.

From clock-on to invoice-paid, in one app. No more spreadsheets, paper timesheets, or chasing receipts at smoko.

Live earnings timer

Press start when you arrive on site. The ticker counts up every second so you can see exactly what you're earning. Stop and it saves to your timesheet automatically.

Per-second ticker · per-min · per-hr breakdown
Smoko mode pauses without losing the session
Background-safe — keeps counting in your pocket

Today

$720.50

This week

$4,200

Charge-out

$95/hr

Earning live $312.45

25 NZ tradie calculators

Concrete · roof pitch / hip / rafter · stairs · deck framing · baluster spacing · voltage drop · GST · quick-quote and 17 more.

m³°L $Vπ kg%↻

GPS auto clock-on

Walk on site, the timer offers to start. Walk off for 5 min, it stops. 100m geofence.

Real NZ Building Code · offline

NZS 3604 · SG8/SG10 span tables · WorkSafe Working at Height · LBP skills · EWRB CoC · plus E2, B1, G12 quick refs.

NZS 3604 (1999) · 79 KB
SG8 / SG10 span tables · 1.2 MB
WorkSafe Working at Height
EWRB CoC + LBP skills record

References

Total size

3.2MB

NZS 3604

SG8/SG10

7-day site weather

Workable / risky / no-go tags. Auto-reschedule jobs that get rained out.

Timesheet → Xero invoice

Tick the days, tap "To invoice", add materials and travel. GST 15% auto-calc, email + Xero export in one tap.

Skin it your way

4 colour palettes (Linear · Kauri · Graphite · Hi-Vis), light + dark, outline / filled icons, $ before / after. All swap live.

Tour

Three taps, three screens.

The full workflow, on the same hardware you already carry.

9:41•••

Tools

Timer · Calculators · PDFs

ON SITE · 14 Cuba St

Earnings, live

$312.45

02:18:14 · $95/hr

/sec$0.0264

/min$1.58

/hr$95

Smoko

Stop & save

9:41•••

Tools

25 calculators · NZ rules

Search calculators…

Concrete

Concrete volume

Slab · footing · column

Concrete bags

20 / 25 kg

Roof

Roof pitch

Rise · run · °

Rafter length

Common + birdsmouth

9:41•••

Money

Hours · billing · invoices

Unbilled hrs

21.0

Outstanding

$1,281

Paid MTD

$2,569

Timesheet

Invoices

Te Aro Renovations

Mon · 7.5h · Bathroom

$712

Hayden Roberts

Fri · 8.0h · Deck

$704

Greenfield Property

Wed · 8.5h · Kitchen

Paid Xero +GST

2 selected · To invoice →

Workflow

Clock on. Earn live. Get paid.

The full Knockoff loop, from boots-on-site to money in the bank. Scroll to play.

07:30

You roll up to the site

GPS sees you within 100 m of Te Aro Reno. Auto clock-on.

ON SITE · 14 Cuba St

07:31 → 12:14

Earnings tick over in real time

$95/hr × seconds-on-tools. No app to open. No timer to remember.

Live earnings $0.00 04:42:00 · $95/hr

12:15

One tap saves the timesheet

Job, client, hours, rate, GST — all there. No spreadsheets.

Te Aro Reno · Bathroom re-fit

4.7 h · $446.50

Hayden Roberts · Deck

8.0 h · $760.00

Greenfield Property · Kitchen

8.5 h · $807.50

12:16

Invoice flies out to the client

GST-correct. Numbered. PDF + Xero export, ready to email.

INV-024 · Te Aro Reno Sent

$1,281.38 incl. GST

Xero export +15% GST

14:08

Payment lands in your account

Two hours later. Notification fires. Knock off rich.

$0.00 Paid · 2 min ago

Changelog

What's new

We ship in days, not quarters. Here's what landed this month.

v2.0 · this week

NZ Tradie Pack Major

25 calculators (was 9). Real NZ PDFs replace placeholders.

+18 calculators: stairs, deck, baluster spacing, rafter, hip/gable/skillion roof, brick / block walls, rebar layout, tile coverage, conversions, circle, and more.
Real PDFs: NZS 3604 (1999), SG8 / SG10 span tables (2023), WorkSafe Working at Height, EWRB CoC template, LBP skills record.
Reference HTMLs: NZ wind / seismic / snow zones, fixing schedules, materials reference, weather work matrix.
Calculators tab now has search by name, sub-text, or category.

v1.5

Functional pass

Every dead button got wired up: Bell → notifications, Photo / Expense forms, Money plus → new entry, Invoice cards → detail with mark-paid, Add materials in invoice draft, Clients add / call / email / reminder, Profile sheets, Mate Network bid & speak-it. Fixed a React hooks ordering crash in Money tab.

v1.0

Initial launch

iOS & Android side-by-side, editable home widgets, GPS auto clock-on, live earnings ticker, 7-day weather, GST invoicing with Xero export, 4 themes, dark mode, Mate Network beta.

Why Pro?

Pays for itself in a week.

Most tradies lose 15 minutes a day to paperwork, lookup, and re-typing job notes. Knockoff Pro pulls that time back.

Saves invoice time — timer rolls straight into a GST invoice. No re-typing.
Stops lost hours — GPS auto clock-on means every minute on site is billed.
All 25 calculators — concrete, roof, stairs, voltage drop, GST, the lot.
NZ Building Code & WorkSafe — full PDFs offline. No signal, no problem.
Weather risk planning — 7-day site forecast, auto-reschedule the risky days.
Xero invoice export — one tap, straight to your accountant.

Pricing

Pick a plan that fits your trade.

14-day free trial on every paid plan. No card needed. Cancel anytime.

Solo

Free_forever

For lone tradies just getting set up.

Live earnings timer
1 client
Basic timesheet
5 calculators (concrete, GST, paint, conversions, quote)

From the worksite, not the boardroom.

"Used to spend Sundays writing invoices. Now it's two taps from the ute. Got paid five days faster the first month."

Dave Robinson
Builder · Lower Hutt

"The earnings ticker is dangerously satisfying. Watching the cents roll while you're cutting timber — pure dopamine. Brilliant."

Sione Maea
Sparkie · Porirua

"NZS 3604 in the back pocket without internet means I'm not the bloke calling the office for a span table any more. The hip-roof calc saved me an hour yesterday."

Kura Wikiriwhi
Plumber · Wellington

FAQ

The bits people ask before they install.

Does it work without internet on site?

Yes — the timer, all 25 calculators, NZ Building Code PDFs, and your saved timesheet entries all work offline. Invoices sync to Xero next time you're in range. The PWA caches everything on first install via a service worker.

What's actually in the 25 calculators?

Concrete: volume (multi-shape), bags, rebar layout. Masonry: block wall, brick wall. Roof: pitch, rafter, gable, hip, skillion. Framing: wall, deck. Stairs: full stairs, rise/run/pitch, baluster spacing. Surfaces: tile, paint. Math: circle, conversions, timber off-cuts. Trade: voltage drop, pipe flow, fastener gauge. Business: GST add/strip, quick-quote.

Which NZ documents are bundled?

Real PDFs: NZS 3604 (1999), SG8 / SG10 span tables (2023), WorkSafe — Working at Height, EWRB Certificate of Compliance / ESC template, LBP Skills Maintenance Record. Plus interactive HTML references for NZ wind / seismic / snow zones, fixing schedules, materials lookup, and weather work matrix. More B-clauses being added monthly.

How does the GST invoicing work?

Knockoff auto-calcs 15% NZ GST on labour + materials + travel. Toggle GST registration off if you're below the IRD threshold. Invoices generate as PDF and as Xero / MYOB-friendly CSV.

What happens to my data if I cancel?

Timesheet history and invoices stay readable on the free plan. Pro features (Xero sync, calculators 6–25, weather alerts, NZ PDFs) lock until you re-subscribe. Export everything to CSV any time.

Is there an iPhone and Android app?

Today, install the web app via the Install button — it adds an icon to your home screen and runs full-screen, no app-store wait. Native iOS + Android with deeper hardware integration ship Q3 2026.

Can my crew use one Knockoff account?

Yes — the Crew plan supports up to 8 crew timesheets under one business. Each crew member gets their own login, timer, and earnings, but invoicing rolls up to the head builder.

One Kiwi app. Every tool of your trade.

Free 14-day Pro trial. No card. Cancel any time.

Try live demo View pricing

Every tool of your trade.One Kiwi app.

Welcome, Challis

From boots-on-site to bank in 60 seconds.

Walk on site, timer starts

Tap stop. Timesheet saves itself.

Invoice flies to Xero, paid same day.

Everything for site, nothing you don't.

Live earnings timer

25 NZ tradie calculators

GPS auto clock-on

Real NZ Building Code · offline

7-day site weather

Timesheet → Xero invoice

Skin it your way

Three taps, three screens.

Clock on. Earn live. Get paid.

You roll up to the site

Earnings tick over in real time

One tap saves the timesheet

Invoice flies out to the client

Payment lands in your account

What's new

Pays for itself in a week.

Pick a plan that fits your trade.

From the worksite, not the boardroom.

The bits people ask before they install.

One Kiwi app. Every tool of your trade.

Every tool of your trade.
One Kiwi app.