Django (djaodjin) vs Rails (Avo): Python vs Ruby SaaS Starters

The Original Full-Stack Frameworks

Before Next.js, before SvelteKit, before the JavaScript framework explosion — there was Django and Rails. Two full-stack frameworks that launched thousands of startups and still power major applications in 2026.

djaodjin is a Django-based SaaS boilerplate that provides multi-tenant billing, access control, and a dashboard framework. It's built by the team behind DjaoDjin (the company), who've run their own SaaS on it for years.

Avo is a Rails-based framework for building admin panels and internal tools, with SaaS capabilities through its premium tiers. It leverages Rails' convention-over-configuration philosophy to generate CRUD interfaces, dashboards, and admin experiences from your models.

Both represent their respective ecosystems well. Django brings Python's data science and AI ecosystem. Rails brings developer productivity and convention-driven development.

TL;DR

djaodjin (free, Django/Python) is a production-tested SaaS platform with multi-tenant billing, Stripe integration, and access control — used by its creators to run their own SaaS business. Avo ($0-$149/month, Rails/Ruby) is a framework for building admin panels and CRUD interfaces with SaaS capabilities in premium tiers. Choose djaodjin for Python-native SaaS with proven billing. Choose Avo for Rails admin panels with rapid CRUD generation.

Key Takeaways

• Different focuses. djaodjin is a SaaS billing and multi-tenancy platform. Avo is an admin panel and CRUD framework with SaaS extensions.
• djaodjin is production-proven — its creators run their SaaS business on it. Avo has broader adoption but for admin panels specifically.
• Python vs Ruby is the foundational choice. Django gives you Python's AI/ML ecosystem. Rails gives you convention-over-configuration speed.
• djaodjin handles multi-tenancy natively. Tenant isolation, per-tenant billing, and access control are core features, not add-ons.
• Avo generates admin UI from models. Define your Rails models, get CRUD interfaces, filters, actions, and dashboards automatically.
• Pricing differs significantly. djaodjin is open source. Avo has a free community tier but premium features require $99-$149/month.

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Feature Comparison

SaaS Core Features

Feature	djaodjin (Django)	Avo (Rails)
Billing / Stripe	✅ Full (subscriptions, one-time)	⚠️ Premium tier
Multi-tenancy	✅ Native (URL-based)	⚠️ Manual setup
Access control	✅ Role-based per tenant	✅ Pundit policies
User management	✅ Registration, profiles	✅ Devise-based
Admin panel	✅ Basic dashboard	✅ Excellent (core feature)
CRUD generation	❌ Manual	✅ Automatic from models
API	✅ REST API	✅ REST API
Webhooks	✅ Stripe webhooks	⚠️ Manual
Invoicing	✅ Built-in	❌ Manual
Usage metering	✅ Built-in	❌ Manual

djaodjin wins on SaaS billing features. Avo wins on admin panel and CRUD capabilities.

Admin and Dashboard

Feature	djaodjin	Avo
Auto-generated CRUD	❌	✅ Excellent
Custom dashboards	✅ Basic	✅ Cards, charting, metrics
Search & filters	✅ Basic	✅ Advanced (scopes, filters)
Bulk actions	❌	✅ Built-in
Custom actions	❌	✅ Per-resource actions
File uploads	⚠️ Manual	✅ Active Storage integration
Rich text editing	❌	✅ Trix/ActionText
Authorization	✅ Role-based	✅ Pundit integration

Avo's admin panel is its killer feature. You define "resources" that map to your Rails models, and Avo generates full CRUD interfaces with search, filtering, sorting, pagination, and custom actions. For data-heavy SaaS applications, this saves enormous amounts of time.

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Architecture

djaodjin (Django)

myproject/
├── djaoapp/              # Main Django app
│   ├── settings.py
│   ├── urls.py
│   └── wsgi.py
├── saas/                 # Multi-tenant SaaS module
│   ├── models.py         # Subscription, Organization, Plan
│   ├── views.py          # Billing, checkout flows
│   ├── api/              # REST API for billing
│   └── backends/         # Stripe, payment processing
├── rules/                # Access control module
│   ├── models.py         # Permissions, roles
│   └── middleware.py     # Tenant-aware auth
├── signup/               # User registration
│   ├── models.py
│   └── views.py
├── pages/                # Content/landing pages
└── templates/            # Jinja2/Django templates

djaodjin uses Django's app architecture. The saas app handles billing and multi-tenancy. The rules app handles access control. They compose together through Django's middleware and URL routing system.

Multi-tenancy approach: URL-based tenant isolation. Each tenant gets a subdomain or URL prefix:

https://tenant1.yourapp.com/dashboard/
https://tenant2.yourapp.com/dashboard/

The middleware extracts the tenant from the URL and scopes all database queries accordingly.

Avo (Rails)

app/
├── avo/
│   ├── resources/        # Resource definitions (CRUD)
│   │   ├── user_resource.rb
│   │   ├── product_resource.rb
│   │   └── order_resource.rb
│   ├── cards/            # Dashboard cards
│   ├── actions/          # Bulk/custom actions
│   ├── filters/          # Custom filters
│   └── dashboards/       # Dashboard definitions
├── models/               # Standard Rails models
│   ├── user.rb
│   ├── product.rb
│   └── order.rb
├── controllers/          # App controllers
├── views/                # App views
└── policies/             # Pundit authorization
config/
├── routes.rb
└── initializers/
    └── avo.rb            # Avo configuration

Avo sits alongside your standard Rails application. Your models, controllers, and views remain standard Rails. Avo resources are thin wrappers that tell Avo how to display and manage your models:

class Avo::Resources::User < Avo::BaseResource
  self.title = :name

  def fields
    field :id, as: :id
    field :name, as: :text
    field :email, as: :text
    field :role, as: :select, enum: User.roles
    field :created_at, as: :date_time
    field :orders, as: :has_many
  end

  def actions
    action Avo::Actions::SendWelcomeEmail
    action Avo::Actions::DeactivateUser
  end
end

From this declaration, Avo generates index pages, show pages, edit forms, search, filters, and actions — all with proper authorization through Pundit policies.

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Language and Ecosystem

Python (Django) Strengths

Area	Advantage
AI/ML integration	Direct access to NumPy, pandas, scikit-learn, PyTorch, TensorFlow
Data processing	Python is the lingua franca of data science
API development	Django REST Framework is mature and well-documented
DevOps tooling	Ansible, Fabric, most cloud SDKs are Python-first
Hiring pool	Python is the #1 most popular language globally
Learning curve	Python syntax is approachable for junior developers

If your SaaS involves AI features, data analysis, or ML models — Django gives you native access to Python's unmatched data science ecosystem. No language bridges, no microservice boundaries, no serialization overhead.

Ruby (Rails) Strengths

Area	Advantage
Developer productivity	Rails generators, conventions, and scaffolding are unmatched
Rapid prototyping	Convention-over-configuration minimizes decisions
Testing culture	RSpec, Capybara, Factory Bot — testing is a first-class citizen
Background jobs	Sidekiq/Solid Queue with Active Job is production-grade
Real-time	Action Cable, Turbo Streams, Hotwire for real-time features
Full-stack without JS	Hotwire + Turbo handles most interactivity without a JS framework

Rails' philosophy of convention-over-configuration means you make fewer architectural decisions. The framework has an opinion on everything — database structure, URL patterns, file organization — and those opinions are usually good.

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Performance and Scaling

Django / djaodjin

Aspect	Details
Server	Gunicorn / uWSGI behind Nginx
Async support	Django 4.2+ supports async views
Caching	Django cache framework (Redis, Memcached)
Database	PostgreSQL (recommended), MySQL, SQLite
Task queue	Celery with Redis/RabbitMQ
Scaling	Horizontal (multiple Gunicorn workers)
Typical response time	50-200ms

Rails / Avo

Aspect	Details
Server	Puma (threaded, multi-process)
Async support	Fibers (Ruby 3.0+), Async gem
Caching	Rails cache (Redis, Memcached, Solid Cache)
Database	PostgreSQL (recommended), MySQL, SQLite
Task queue	Sidekiq, Solid Queue, GoodJob
Scaling	Horizontal (multiple Puma workers)
Typical response time	50-200ms

Both frameworks handle typical SaaS workloads well. Neither will be your performance bottleneck until you're at significant scale.

Ruby 3.0+ YJIT has dramatically improved Rails performance. Python 3.12+ has similarly improved Django's speed. The performance gap between them has narrowed significantly.

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Deployment

Platform	djaodjin	Avo
Heroku	✅ Works	✅ Works
Railway	✅ Works	✅ Works
Render	✅ Works	✅ Works
Docker	✅ Works	✅ Works
AWS	✅ EC2, ECS, Lambda	✅ EC2, ECS
Fly.io	✅ Works	✅ Works
Platform.sh	✅ Django support	✅ Rails support
Hatchbox	❌	✅ Rails-specific

Both deploy easily to modern PaaS platforms. Rails has a slight edge with Rails-specific hosting like Hatchbox and native Heroku support (Rails was one of Heroku's first supported frameworks).

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Pricing

djaodjin

Plan	Price
Open source	$0
All features	Included
Commercial use	✅ BSD license
Hosted version	Available (managed)

Avo

Plan	Price
Community (free)	$0 — basic resources, fields, CRUD
Pro	$99/month — custom fields, actions, dashboards, filters
Advanced	$149/month — authorization, search, multi-tenancy
Enterprise	Custom — priority support, custom features

Avo's pricing is per-app, per-month. For a SaaS that runs for years, the costs add up:

Duration	Avo Pro	Avo Advanced
1 year	$1,188	$1,788
3 years	$3,564	$5,364
5 years	$5,940	$8,940

djaodjin's open-source model is significantly cheaper long-term. However, Avo's admin panel generation genuinely saves development time — you need to evaluate whether the time saved justifies the subscription.

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When to Choose Each

Choose djaodjin (Django) If:

• You're a Python developer and want to stay in the Python ecosystem
• Multi-tenant billing is a core requirement — djaodjin handles this natively
• Your SaaS involves AI/ML features — direct access to Python's data science tools
• Budget is a priority — open source with no recurring license fees
• You need a proven billing system — djaodjin's creators run their business on it
• You prefer explicit over magic — Django's philosophy matches this thinking

Choose Avo (Rails) If:

• You're a Ruby developer and want Rails' productivity advantages
• Your SaaS is data-heavy — Avo's CRUD generation shines for managing complex data models
• You need an admin panel fast — no other tool generates admin interfaces as quickly
• You value convention-over-configuration — Rails makes architectural decisions for you
• Real-time features matter — Hotwire/Turbo Streams handle live updates without a JS framework
• You want full-stack without JavaScript — Hotwire lets you build interactive UIs in Ruby

Consider Other Options If:

• You want a JavaScript stack — T3 Stack, ShipFast, Supastarter
• You need maximum ecosystem size — Next.js has the largest community
• You want edge deployment — Neither Django nor Rails excels at edge computing

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The Honest Take

In 2026, choosing Django or Rails for a SaaS isn't about following trends — it's about picking a stable, productive framework that will still be well-maintained in five years. Both Django and Rails have 15+ year track records of powering successful businesses.

djaodjin gives you billing infrastructure that works. Avo gives you admin panels that write themselves. Neither choice is wrong.

The real question: do you think in Python or Ruby? Your language fluency and team expertise should drive this decision more than any feature comparison.

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