Comparison

Crater vs Quaderno

On the evidence we track, Quaderno leads this comparison with a composite score of 60/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Crater full profile →Quaderno full profile →

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Crater50

★Quaderno60

Attribute comparison across 2 tools
Attribute	Crater	QuadernoLeader
Vioscale score	50 / 100medium · 74%	60 / 100low · 39%
Pricing
Free tierpricing.free_tier	✓	✗
Modelpricing.model	open_source	commercial
Price levelpricing.price_level	free	mid
Starting pricepricing.starting_price	-	$29
Transparentpricing.transparent	-	✓
Integrations
Countintegrations.count	3	9
Security
Disclosure policysecurity.disclosure_policy	-	✓
Gdprsecurity.gdpr	-	✓
Soc2security.soc2	✓	-
Reliability
Sla pctreliability.sla_pct	-	99.99
Status pagereliability.status_page	✓	-
Adoption
Github starsadoption.github_stars	8,340	-
Release
Cadence daysrelease.cadence_days	2	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	AGPL-3.0	-
Language
Primarylanguage.primary	PHP	-
Market
Availabilitymarket.availability	-	Available worldwide · HQ ES

Score

Vioscale score

Crater50 / 100medium · 74%

Quaderno60 / 100low · 39%

Pricing

Free tier

Crater✓

Quaderno✗

Model

Crateropen_source

Quadernocommercial

Price level

Craterfree

Quadernomid

Starting price

Crater–

Quaderno$29

Transparent

Crater–

Quaderno✓

Integrations

Count

Crater3

Quaderno9

Security

Disclosure policy

Crater–

Quaderno✓

Gdpr

Crater–

Quaderno✓

Soc2

Crater✓

Quaderno–

Reliability

Sla pct

Crater–

Quaderno99.99

Status page

Crater✓

Quaderno–

Adoption

Github stars

Crater8,340

Quaderno–

Release

Cadence days

Crater2

Quaderno–

History

Crater20 items

Quaderno–

License

Spdx

CraterAGPL-3.0

Quaderno–

Language

Primary

CraterPHP

Quaderno–

Market

Availability

Crater–

QuadernoAvailable worldwide · HQ ES

Capabilities

Feature-by-feature on the axes that matter for billing & invoicing software. “-” means undocumented, not absent.

Capability comparison for Billing & Invoicing Software
Capability	Crater	Quaderno
Core
Subscription billing	-	✓
Usage metering	-	Basic
Pricing models	-	Tiered subscription with transaction-based limits
Invoicing & AR	✓	✓
Catalog management	-	-
Commerce
Merchant of record	-	-
Finance
Revenue recognition	-	-
Tax handling	-	Native
Collections
Dunning	-	-
Integrations
GL / ERP sync	-	✓
Ecosystem
API-first / developer-first	✓	✓
Deployment
Self-hostable	✓	✗
Insight
Revenue analytics	-	✓

Core

Subscription billing

Crater-

Quaderno✓

Usage metering

Crater-

QuadernoBasic

Pricing models

Crater-

QuadernoTiered subscription with transaction-based limits

Invoicing & AR

Crater✓

Quaderno✓

Catalog management

Crater-

Quaderno-

Commerce

Merchant of record

Crater-

Quaderno-

Finance

Revenue recognition

Crater-

Quaderno-

Tax handling

Crater-

QuadernoNative

Collections

Dunning

Crater-

Quaderno-

Integrations

GL / ERP sync

Crater-

Quaderno✓

Ecosystem

API-first / developer-first

Crater✓

Quaderno✓

Deployment

Self-hostable

Crater✓

Quaderno✗

Insight

Revenue analytics

Crater-

Quaderno✓

What each one is

The product in its own terms, so the numbers below have context.

Crater

Open-source web and mobile app that helps track expenses, payments, and create professional invoices and estimates.

Independently observed

Quaderno

Leader

Worldwide tax compliance platform that automates sales tax, VAT, and GST calculations, invoicing, and tax return filing for online businesses.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Crater

Open sourceFree tier

Free, open-source

Open SourceFree
- Expense tracking
- Payment tracking
- Invoice creation
- Estimate creation

as of 2026-08-13verify ↗

Quaderno

Leader

from $29/moSubscription7-day trial

From $29/month. 7-day free trial.

Hobby$29/month
- International tax calculations
- Nexus & threshold alerts
- Automatic invoices
- Quaderno Checkout
- Five-star support
- +2 more
Startup$49/month
- International tax calculations
- Nexus & threshold alerts
- Unlimited users
- Automatic invoices
- Quaderno Checkout
- +4 more
Business$99/month
- International tax calculations
- Nexus & threshold alerts
- Unlimited users
- Automatic invoices
- Quaderno Checkout
- +4 more
Growth$149/month
- International tax calculations
- Nexus & threshold alerts
- Unlimited users
- Automatic invoices
- Quaderno Checkout
- +4 more
EnterpriseContact sales

as of 2026-08-03verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Crater	Quaderno
WebPlatforms	✓	✓
iOSPlatforms	✓	✗
AndroidPlatforms	✓	✗
Cloud / SaaSDeployment	✗	✓
Self-hostedDeployment	✓	✗

Platforms

Web

Crater✓

Quaderno✓

iOS

Crater✓

Quaderno✗

Android

Crater✓

Quaderno✗

Deployment

Cloud / SaaS

Crater✗

Quaderno✓

Self-hosted

Crater✓

Quaderno✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)

Xero

Crater

3 total - 2 not shared

Plaid
QuickBooks

Independently observed

Quaderno

Leader

12 total - 11 not shared

Stripe
PayPal
GoCardless
Braintree
Hotmart
PEPPOL
TicketBAI
Facturae
Square
Amazon
WooCommerce

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.