Invoice Simple Alternative for Contractors (2026)

Side by side

	Selk	Invoice Simple
One person	$29/mo (Solo) — unlimited estimates and invoices	Essentials $6.99 (3 invoices/mo) · Plus $14.99 (10/mo) · Premium $21.99 (unlimited)
Schedule and crew	Yes — schedule, assign workers, crew hours	Invoicing-focused
Price book	Yes — your items and prices, import from a spreadsheet	Saved items
Online card payments	Yes — through your own Stripe account. Selk adds no fee on top of Stripe’s	Yes
Customer reminder the day before	Yes — an email in your company’s name	—
Worker app	Free; workers never see prices	—
App languages	English, Spanish, Portuguese, Vietnamese, Chinese, Haitian Creole	—
Desktop / web app	Yes — selkapp.com/app on any computer, same account as the phone	Yes

Invoice Simple offers annual billing. Selk is month-to-month only, through the App Store or Google Play. Card processing fees are set by the payment company.

Where Invoice Simple is stronger

Very low price for a handful of invoices a month.
Simple to learn if invoices are all you need.

Choose Selk if…

You need the whole job — estimate, schedule, crew, invoice, payment — not just the invoice.
You send more than a few invoices a month.

Choose Invoice Simple if…

You only send a few invoices a month and need nothing else.

Questions

Is Selk cheaper than Invoice Simple?

For invoices alone, no — Invoice Simple starts lower (Essentials $6.99/mo for up to 3 invoices, Plus $14.99/mo for up to 10, Premium $21.99/mo unlimited, per its own comparison article). Selk Solo is $29/mo with unlimited estimates and invoices plus the schedule, price book, customer reminders and card payments — and a crew from $79/mo.

Can I move from Invoice Simple to Selk?

Yes. Export your customers and your price list from Invoice Simple as a spreadsheet (CSV or Excel) and import them into Selk from Clients or Price book → Import. Selk matches the columns for you and shows everything before saving.

Does Selk take a cut of card payments?

No. Customers pay through your own Stripe account and the money goes to your bank. Stripe charges its normal processing fee; Selk adds nothing.

Is Selk available now?

Selk is coming soon to the App Store and Google Play. The iPhone version is in testing now.

Try Selk free for 14 days

14 days free. Workers always free. No contract.

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Invoice Simple is a trademark of its owner. Selk is not affiliated with Invoice Simple. Competitor details come from their public website on October 27, 2026 and may change — check their site for current prices.