Dev tools · alternatives · 2026
24 alternatives to ASTPP
Open source voip billing solution
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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QuickBill▲164A simple tool to create unlimited free invoices.
2017 · punitgr.github.io · its alternatives →
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Killbill▲156Open source subscription billing & payment platform
2014 · killbill.io · its alternatives →
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Advanced VoIP billing solution with invoicing
2024 · clovekonnect.com · its alternatives →
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magicJackGO▲60Like Vonage, but about 1/10th the price. simple VOIP.
2014 · magicjack.com · its alternatives →
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Revloop▲60A simple way to handle your subscription and billing needs
2022 · revloop.com · its alternatives →
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Open source billing, payment & invoicing platform
Nov 2025 · definvoice.xyz · its alternatives →
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Isp billing and customer relationship management system
2025 · xeofi.com · its alternatives →
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InvoicePlane is a free and open source application to manage your quotes, invoices, payments and customers.
2015 · invoiceplane.com · its alternatives →
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Invoicing, Quotes, Expenses, Time-Tracking built in Flutter
2021 · invoiceninja.org · its alternatives →
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Invoicey.io▲10Free AI invoice & quote generator with 1-click conversion
Feb 2026 · invoicey.io · its alternatives →
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Free Invoice Generator Indian Freelancers & Small Businesses
Nov 2025 · invoicebill.org · its alternatives →
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Invoice Fly▲10Best Invoicing App for Contractors and Small Businesses
2025 · invoicefly.com · its alternatives →
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- 24FS
Free VoIP Server for Windows OS
2016 · mizu-voip.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →