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Kill Bill
5
12
4
5
3
0
2
0
1
0
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open Source Subscription Billing and Payment Platform
Last updated: March 2026
Kill Bill Alternatives & Competitors (2026)
Top 6 free alternatives
0.5
Value for money
Starting price
No pricing info
0.1
Functionality
Accounting
5/5
AI/Machine Learning
4.8/5
Anomaly Detection
4.7/5
Top Features
Billing & Invoicing
N/A
Billing Portal
N/A
Client Portal
N/A
0.8
Value for money
Starting price
No pricing info
0.4
Functionality
401(k) Tracking
5/5
ACH Payment Processing
4.8/5
1099 Preparation
4.8/5
Top Features
Alerts/Notifications
N/A
API
N/A
Billing & Invoicing
N/A
0.8
Value for money
Starting price
No pricing info
0.4
Functionality
Accounting
5/5
Chart of Accounts
5/5
Credit Card Processing
5/5
Top Features
ACH Payment Processing
N/A
Activity Dashboard
N/A
Alerts/Notifications
N/A
0.7
Value for money
Starting price
No pricing info
0.4
Functionality
401(k) Tracking
4.8/5
Accounting
4.6/5
Activity Dashboard
4.5/5
Top Features
Alerts/Notifications
N/A
API
N/A
Billing & Invoicing
N/A
0.7
Value for money
Starting price
No pricing info
0.4
Functionality
Alerts/Notifications
5/5
Attendance Tracking
4.6/5
Accounting
4.5/5
Top Features
API
N/A
Billing & Invoicing
N/A
Billing Portal
N/A
0.6
Value for money
No pricing info
Starting price
No pricing info
0.1
Functionality
Billing & Invoicing
4.9/5
API
4.8/5
Billing Portal
4.5/5
Top Features
Activity Dashboard
N/A
Client Portal
N/A
Contact Database
N/A
0.4
Value for money
Starting price
No pricing info
Functionality
Billable Items Tracking
5/5
Billing & Invoicing
4.9/5
ACH Payment Processing
4.8/5
Top Features
Billing Portal
N/A
Client Portal
N/A
Contact Database
N/A
0.5
Value for money
Starting price
No pricing info
0.2
Functionality
API
5/5
Cash Management
5/5
Billing & Invoicing
4.7/5
Top Features
ACH Payment Processing
N/A
Billing Portal
N/A
Client Portal
N/A
1.0
Value for money
No pricing info
Starting price
No pricing info
0.4
Functionality
Digital Wallet Payments
5/5
API
4.9/5
Data Security
4.7/5
Top Features
Alerts/Notifications
N/A
Billing Portal
N/A
Client Portal
N/A
0.7
Value for money
Starting price
No pricing info
0.4
Functionality
ACH Payment Processing
4.5/5
Billing Portal
4.4/5
Billing & Invoicing
4.4/5
Top Features
Client Portal
N/A
Contact Database
N/A
Contingency Billing
N/A
0.4
Value for money
Starting price
No pricing info
0.5
Functionality
Accounts Receivable
4.5/5
Activity Dashboard
4.5/5
Accounting
4.5/5
Top Features
API
N/A
Billing & Invoicing
N/A
Billing Portal
N/A
0.7
Value for money
Starting price
No pricing info
0.3
Functionality
ACH Payment Processing
5/5
Activity Tracking
5/5
Ad hoc Reporting
5/5
Top Features
Alerts/Notifications
N/A
API
N/A
Billing & Invoicing
N/A
1.2
Value for money
Starting price
No pricing info
0.7
Functionality
Invoice History
5/5
Data Security
4.5/5
Alerts/Notifications
4.4/5
Top Features
ACH Payment Processing
N/A
Activity Dashboard
N/A
Billing Portal
N/A
0.8
Value for money
Starting price
No pricing info
0.4
Functionality
Activity Tracking
4.7/5
Accounting
4.6/5
Accounts Receivable
4.6/5
Top Features
ACH Payment Processing
N/A
Billing & Invoicing
N/A
Billing Portal
N/A
1.1
Value for money
Starting price
No pricing info
0.6
Functionality
ACH Payment Processing
4.5/5
Access Controls/Permissions
4.5/5
Accounts Receivable
4.2/5
Top Features
API
N/A
Billing & Invoicing
N/A
Billing Portal
N/A
0.4
Value for money
No pricing info
Starting price
No pricing info
Functionality
API
4.8/5
Contact Database
4.8/5
Billing & Invoicing
4.7/5
Top Features
ACH Payment Processing
N/A
Activity Dashboard
N/A
Client Portal
N/A
0.6
Value for money
Starting price
No pricing info
0.4
Functionality
Contact Database
5/5
Billing & Invoicing
4.8/5
Multi-Currency
4.7/5
Top Features
ACH Payment Processing
N/A
Activity Dashboard
N/A
Alerts/Notifications
N/A
0.2
Value for money
Starting price
No pricing info
0.1
Functionality
Accounting Integration
5/5
Activity Dashboard
5/5
Billing & Invoicing
4.8/5
Top Features
ACH Payment Processing
N/A
Billing Portal
N/A
Client Portal
N/A
0.3
Value for money
Starting price
No pricing info
0.2
Functionality
Access Controls/Permissions
5/5
Accounting Integration
5/5
ACH Payment Processing
5/5
Top Features
Activity Dashboard
N/A
Billing Portal
N/A
Client Portal
N/A
0.1
Value for money
Starting price
No pricing info
0.1
Functionality
Billing Portal
5/5
Chat/Messaging
5/5
Activity Dashboard
4.9/5
Top Features
ACH Payment Processing
N/A
API
N/A
Client Portal
N/A