Clever Cloud vs Heroku

Why Switch from Heroku to Clever Cloud?

Heroku set the template for modern application hosting. For European teams, the structural concerns are increasingly hard to ignore: Salesforce ownership since 2010, AWS-backed underneath, US legal jurisdiction. The 2025 ICC / Microsoft sovereignty incident made the abstract concerns concrete.

Clever Cloud is the French alternative, founded in Nantes in 2010. Container-based architecture, EU-only data centres, native add-ons covering the common database and cache requirements, with strong adoption in the French government and regulated-industry deployments.

Feature Comparison

Feature	Clever Cloud	Heroku
Jurisdiction	France 🇫🇷	United States 🇺🇸
Data location	EU only (France)	US default, EU on Private Spaces
GDPR	✅ Native	⚠️ Provider claims
CLOUD Act exposure	❌ None	⚠️ Yes
Buildpacks	Auto-detection	Heroku buildpacks
Custom Docker	✅ First-class	Limited
Native Postgres	✅	✅
Native MongoDB	✅	❌ (add-on)
HDS certified	✅	❌
Currency	EUR	USD
Free tier	✅ Nano	⚠️ Eco $5/month

Pricing

Clever Cloud pricing scales by container size and add-ons:

• Free ‘Nano’ tier: limited but real — hobby apps and demos
• XS container: ~€5/month
• S container: ~€10/month
• M container: ~€20/month
• Add-ons: Postgres from €15/month, MongoDB from €15/month, Redis from €15/month

For an equivalent Heroku Standard-1X + Postgres mini setup, Clever Cloud’s total is roughly €30 vs Heroku’s ~$45. The EUR-native billing and EU VAT handling are operationally meaningful for European businesses.

Privacy & Data Sovereignty

Clever Cloud’s structural advantages:

• French corporate jurisdiction — Clever Cloud SAS subject to French and EU law
• EU data centres — primary regions in France
• GDPR-native with Article 28 DPA
• HDS (Hébergeur de Données de Santé) certified for healthcare workloads
• No US legal exposure for any customer data
• Strong NIS2 alignment for essential-entity deployments

Migration Guide

1. Create Clever Cloud account at clever-cloud.com (10 min)
2. Provision application with appropriate runtime selection (10 min)
3. Set environment variables copying from Heroku config (15 min)
4. Provision database add-on equivalent to your Heroku Postgres tier (10 min)
5. Migrate database — pg_dump from Heroku, pg_restore to Clever Cloud (30 min - several hours)
6. Add git remote and push (15 min)
7. Configure custom domain with SSL (15 min)
8. Update DNS to Clever Cloud (TTL-dependent)
9. Verify and run parallel (1 hour - 1 week)
10. Decommission Heroku (administrative)

Estimated total time: 1 day for a moderate app. Difficulty: Easy-moderate.

Real-World Use Cases

A French regional government runs its citizen-services platform on Clever Cloud. The combination of French jurisdiction, HDS certification (for citizen health-services integration), and developer-friendly deployment matched their procurement requirements.

A Belgian fintech startup moved from Heroku to Clever Cloud after Belgian financial-regulator inquiries about US-cloud-hosted customer data. The migration took a weekend; the regulatory conversation simplified materially.

A Berlin e-commerce platform uses Clever Cloud for European-customer-facing workloads with the primary EU data residency requirement, while retaining Heroku for US-market-facing workloads — a sovereignty-aware split-stack approach.

Company Background

Clever Cloud SAS was founded in 2010 in Nantes, France, by Quentin Adam and Marc-Antoine Veron. The company pioneered French PaaS at a time when most European developers defaulted to Heroku. Clever Cloud has remained French-owned and operated, with engineering primarily in Nantes.

By 2026, Clever Cloud serves thousands of customers across French and European markets, including significant French government deployments, mid-sized European enterprises, and individual developers. The company has been consistently profitable for several years.

Clever Cloud has been actively engaged in French sovereign-cloud initiatives and DINUM (interministerial digital service) collaborations.

Security & Compliance

• ISO 27001 certified
• HDS (Hébergeur de Données de Santé) certified
• GDPR-native with Article 28 DPA
• TLS 1.3 for all traffic
• DORA-aligned for financial-services use cases
• NIS2-aligned for essential entities
• SecNumCloud-adjacent through qualified underlying-infrastructure partnerships

Integration Ecosystem

• Languages: Ruby, Python, Node, Go, PHP, Java, Elixir, Scala, Rust, Haskell, .NET
• Native add-ons: Postgres, MongoDB, MySQL, Redis, Elasticsearch, RabbitMQ
• Custom Docker images supported as first-class deploys
• Git push deployment
• CLI: full-featured
• Webhooks and event stream
• API: comprehensive REST API

Who Should Switch?

Clever Cloud is ideal for:

• French and EU developers wanting EU-native PaaS
• French government and public-sector deployments
• Healthcare workloads needing HDS certification
• Financial services needing DORA-aligned EU residency
• Anyone preferring Docker-first PaaS over pure buildpack approaches

The Bottom Line

Heroku remains valid for teams deeply embedded in the Salesforce ecosystem or needing global regions outside the EU. For European application hosting, Clever Cloud is the structurally better choice — particularly for French and DACH deployments, regulated industries, and any team that values Docker-first flexibility over rigid buildpack patterns.

---

Looking for more European PaaS and cloud hosting alternatives? See also: Scalingo vs Heroku, Infomaniak Web Hosting, and Hetzner.

Frequently Asked Questions

How does Clever Cloud compare to Scalingo?

Both are French PaaS alternatives to Heroku. Clever Cloud is more container-oriented and has stronger integration with low-level infrastructure customisation (custom Docker images, advanced networking). Scalingo is more strictly Heroku-compatible at the buildpack level. For most apps, either works; for teams wanting deeper control, Clever Cloud often wins; for teams wanting pure Heroku migration, Scalingo is often the simpler path.

Where is data hosted?

Clever Cloud operates from EU data centres only — primary regions in Paris with additional EU regions available. Clever Cloud SAS is a French company subject to French and EU law. No US legal exposure, no CLOUD Act concerns.

Is Clever Cloud SecNumCloud-qualified?

Clever Cloud offers SecNumCloud-aligned deployments through partnerships with qualified underlying infrastructure providers. The company itself is positioned as a managed PaaS layer; the underlying infrastructure provider determines the specific certification. For HDS (healthcare data), Clever Cloud has direct certification.

Can I migrate from Heroku?

Yes. Standard process: 1) Create Clever Cloud account and app, 2) Set environment variables, 3) Push git remote, 4) Migrate database, 5) Update DNS. Most Ruby, Node, Python, Go, PHP, Java, Elixir, and Scala apps move within 2-8 hours with minimal code changes.

What about pricing?

Clever Cloud has a free 'Nano' tier for hobby apps. Production starts around €5/app/month for a single small container, with databases from €15/month. For a typical Heroku-equivalent workload, total monthly cost is often €30-€50 vs Heroku's $30-$60 equivalent — competitive with significantly better EU latency and EUR-denominated invoicing.