Invoice Koi

Claimed

Create on-site estimates, capture signatures, and turn them into invoices offline

From $8.33/mo, billed yearly (free plan available)

Freemium Invoicing Estimating & Takeoff

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Tracked since 2026

The Bottom Line

Updated Oct 29, 2026

Best for: One- and two-person trade businesses that quote and invoice jobs from a phone on site
Price: From $8.33/mo, billed yearly (free plan available). Compare plans

Key facts

Free to set up and draft; sending needs a subscription, with paid tiers on Google Play
Drafts, totals and the PDF work with no signal; AI, backup and payments need a connection
Requires Android 8.0 or later; made by Fang Ventures in Singapore

Not for

Teams that need dispatch, scheduling for many crews, or accounting software integrations

What is Invoice Koi?

Invoice Koi is an invoicing app for Android phones, made for independent tradespeople and small trade businesses. Estimates are written on site from a price book of rates, signed on the phone and turned into invoices without retyping. It records deposits and part payments, reads receipts from a photo, bills time and expenses, and exports reports as CSV, spreadsheet or PDF. Drafts and PDFs work with no signal. An iPhone version is in App Store review.

Available on: Android

Data compiled by Toolradar Pricing checked Oct 29, 2026 · How we evaluate

Source invoicekoi.com

Preview

Key Features

Create invoices and PDFs offline
Convert estimates into invoices
Save client details and price-book rates
Share invoice PDFs by email or messaging apps
Scan receipts for merchant, amount, tax, and category
Record client payments through Stripe links

Pricing Plans

Free Trial

Pricing checked Oct 29, 2026. Source: invoicekoi.com, read Oct 29, 2026

Invoice Koi plans and prices, checked October 2026
Plan	Price	Details
Free	Free	Draft invoices, estimates and receipts Create invoices and PDFs offline No account required
Weekly	$9.99 / week	Send unlimited invoices, estimates and receipts Photo backup across devices Unlimited AI scans and voice-to-invoice +1 more Show less Priority support in 1 to 2 working days
Yearly	$99.99 / year	Send unlimited invoices, estimates and receipts Photo backup across devices Unlimited AI scans and voice-to-invoice +1 more Show less Priority support in 1 to 2 working days

Calculate your cost View full pricing

Is Invoice Koi worth the price?

Good value

Invoice Koi's pricing is fair for tradespeople needing on-site invoicing.

The Free tier is generous for basic offline drafting, while the Yearly plan at $99.99/year ($8.33/month) offers excellent value compared to the Weekly plan at $9.99/week ($43.29/month). Best for sole traders who invoice frequently and want AI-assisted features.

Full Invoice Koi pricing: every plan, hidden costs and alternatives

How Invoice Koi's pricing compares

Invoice Koi starts at $8.33/mo, billed yearly. Its direct competitors are priced on a different basis (per user, or in another currency), so each entry price below is shown with its own unit and currency and is not ranked against the others.

Invoice Koi

$8.33/mo, billed yearly

Housecall Pro

$59/mo, billed monthly

Jobber

$39/mo, billed monthly

ServiceM8

$29/mo, billed monthly

Tradify

$47/user/mo, billed monthly

Entry paid plan, monthly price (billing term shown per row), in each tool's own currency. Pricing checked Oct 29, 2026.

Invoice Koi by the numbers

Toolradar data: Invoice Koi's entry paid plan ($8.33/mo, billed yearly) ranks #16 of 96 for price among the Invoicing tools with a verified entry price and no stated unit, where the median is $29/mo. As of Nov 2026.

Invoice Koi compared with 243 Invoicing tools on Toolradar, as of Nov 2026
Metric	Invoice Koi	Peer median	Position (1 is best)
Entry paid plan	$8.33/mo, billed yearly	$29/mo	#16 of 96 tools with no stated price unit, verified price
Free plan	Yes	34% have one	n/a
Integrations listed	1	1	#13 of 30 (joint) tools with at least one integration recorded

Each position is counted among the tools that have data for that row, as noted under it. A lower entry price ranks higher; prices are read on vendor pages and compared only with tools priced on the same basis. All Invoicing data · How we compute this. Advertising and placement fees are not inputs to any position.

Cite this: Toolradar, “Invoice Koi by the numbers”, Nov 2026.

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Best Invoice Koi Alternatives

Top alternatives based on features, pricing, and user needs.

Housecall Pro Paid

Everything to run and grow your home services business, from scheduling to payments and marketing.

3.9

Jobber Paid

Streamline operations, win more jobs, and boost profits for home and commercial service businesses.

4.3

ServiceM8 Freemium

Smart job management software for contractors and service businesses to streamline operations and get more work done.

4.3

Invoice2go Paid

All-in-one invoice and estimate software for small businesses to manage finances and get paid faster.

4.3

Tradify Paid

All-in-one job management software for tradespeople to streamline operations and boost profitability.

4.6

See all invoicing tools →

Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

Invoice Koi vs Housecall Pro Head-to-head: features, pricing, who wins Invoice Koi vs Jobber Head-to-head: features, pricing, who wins Invoice Koi vs ServiceM8 Head-to-head: features, pricing, who wins

Explore More

Invoice Koi FAQ

How does Invoice Koi streamline the process from estimate to invoice?

Invoice Koi allows tradespeople to create estimates on-site from a price book of rates, capture signatures on the phone, and turn those estimates into invoices without retyping. This streamlines the workflow from estimate to invoice, saving time and reducing errors. The entire process can be done offline, ensuring work continues even without an internet connection.

How does Invoice Koi compare to Jobber?

Invoice Koi is a direct competitor to Jobber, offering similar invoicing and estimating features for tradespeople. It is designed for Android phones and works offline for drafts and PDFs. Invoice Koi also offers a free tier with paid plans for more usage and features.

What kind of limitations does Invoice Koi have?

Invoice Koi is currently only available on Android phones, with an iPhone version in App Store review. It is specifically designed for independent tradespeople and small trade businesses, so it may not be suitable for larger enterprises or businesses outside the trades.

What kind of user is Invoice Koi designed for?

Invoice Koi is designed for independent tradespeople and small trade businesses that need to create estimates and invoices on-site using an Android phone. It is tailored to their workflow, including capturing signatures, recording deposits, and tracking time and expenses.

How is Invoice Koi priced?

Invoice Koi is available on a free tier, with paid plans for more usage and features. This allows users to start without cost and upgrade as their needs grow.

Can Invoice Koi work without an internet connection?

Yes, Invoice Koi allows creating drafts and PDFs with no signal, so work can continue offline. This is especially useful for tradespeople working in areas with poor connectivity.

How does Invoice Koi handle expense tracking?

Invoice Koi reads receipts from a photo, allowing users to record expenses easily. It also bills time and expenses, and records deposits and part payments, providing comprehensive job cost tracking.

Which export options does Invoice Koi offer?

Invoice Koi exports reports as CSV, spreadsheet, or PDF. This provides flexibility for accounting and record-keeping, allowing users to choose the format that works best for their needs.

How does Invoice Koi pricing compare with other Invoicing tools?

Invoice Koi's entry paid plan ($8.33/mo, billed yearly) ranks #16 of 96 for price among the Invoicing tools with a verified entry price and no stated unit, where the median is $29/mo. Prices are read on each vendor's own pricing page and compared only with tools priced on the same basis. Source: Toolradar, Nov 2026.

Source: invoicekoi.com

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