Comparez ArkiaSuite et Proton Mail sur les capacités, la juridiction, les garanties et l'adéquation pour les acheteurs européens.
Tous deux listés comme alternatives à: Google Workspace, Microsoft 365
France· Office Productivity Suite
Needs review
Shortlist when you want a French all-in-one workspace on operator-owned servers in Savoie with a public Art. 28 DPA and frank security limits. Skip when you need SecNumCloud/HDS, E2EE, mature Apple clients, or multi-admin 24/7 operations. Consider mailbox.org, Kolab Now or Nextcloud instead in those cases.
Switzerland· Email Services
Les lignes surlignées diffèrent entre les deux produits.
| Caractéristique | ArkiaSuite | Proton Mail |
|---|---|---|
| Pays d'origine | France | Switzerland |
| Catégorie | Office Productivity Suite | Email Services |
| Open source | Non | Non |
| Auto-hébergé | Non | Non |
| Siège | France | Non indiqué |
| Entité légale | GS Informatique EURL (SIREN 925 179 079, RCS Chambéry) | Non indiqué |
| Maison mère / contrôle US | Aucune maison mère US connue | Non indiqué |
| Exposition CLOUD Act (indicative) | Moyen | Non indiqué |
| Statut d'hébergement dans l'UE | Hébergé dans l'UE | Non indiqué |
| Hébergement / résidence | Content on GS Informatique hardware in Frontenex (primary) and Faverges (encrypted backup). Payments via Stripe Payments Europe (Ireland, US-group payment processor). Password checks via Have I Been Pwned k-anonymity API. TLS via Let's Encrypt. No AWS/GCP/Azure claimed for content. | Non indiqué |
| Résumé | French-hosted all-in-one workspace: cloud files, email, browser office docs, calendar and photo backup on the operator's own servers in Savoie. | Swiss end-to-end encrypted email from Proton AG: zero-access inbox storage, open-source clients, custom domains, and Bridge for desktop IMAP clients. |
| Tags |
| En un coup d'œil | ArkiaSuite | Proton Mail |
|---|---|---|
| HQ | Frontenex, Savoie, France | Non indiqué |
| Legal entity | GS Informatique EURL (SIREN 925 179 079) | Non indiqué |
| Hosting model | Operator-owned servers (not AWS/GCP/Azure) | Non indiqué |
| Self-host | No (vendor-operated SaaS) | Non indiqué |
| Open source | No | Non indiqué |
| Commercial model | Free tier + subscription storage/mail upgrades | Non indiqué |
| Key capabilities | ArkiaSuite | Proton Mail |
|---|---|---|
| EU-operated | Oui | Non indiqué |
| Hosted in France | Oui | Non indiqué |
| Public Art. 28 DPA | Oui | Non indiqué |
| Free tier | Oui | Non indiqué |
| Files + mail + docs | Oui | Non indiqué |
Operator-owned file sync in Savoie
ArkiaCloud stores and syncs files from Windows, browser or phone, with expiring password-protected share links, team spaces, trash and prior versions. Primary disks sit in Frontenex; nightly encrypted backups go to a second GS Informatique site in Faverges.
Email with optional custom-domain Pro
ArkiaMail provides ad-free mailboxes with spam filtering and optional two-factor authentication. Free accounts include a limited mailbox; larger boxes and ArkiaMail Pro on the customer's own domain are provisioned as paid add-ons (Pro is set up with the operator, not only self-serve).
Browser docs compatible with Office formats
ArkiaDocs offers word processing, spreadsheets and presentations in the browser with multi-user editing and claimed compatibility with Word, Excel and PowerPoint files, living on the same account as files and mail.
Calendar, contacts and photo backup
ArkiaAgenda syncs shared calendars, contacts and tasks with phone and desktop clients. ArkiaPhotos backs up phone photos and groups them by date, place and face; face templates are computed on Frontenex servers and can be disabled on request.
Windows desktop app shipping now
A native Windows 10/11 64-bit app (site lists version 1.6.0) auto-syncs chosen folders and opens mail, files, docs and calendar in one window. Android is described as in Play Store review; macOS and iOS clients are still in development.
Chiffrement de bout en bout côté client
Les e-mails se chiffrent directement dans le navigateur avec RSA et AES-256 avant transmission. Les serveurs ne traitent que du texte chiffré — aucun accès au contenu même sous pression juridique. Confidentialité entre utilisateurs Proton et liens protégés vers l'extérieur.
PhishGuard et outils de sécurité avancés
PhishGuard détecte le phishing par analyse des expéditeurs et des liens. Annulation d'envoi, planification, snooze et organisation des newsletters sécurisent les workflows. Intégration PGP et e-mails à autodestruction pour les contenus sensibles.
Applications multiplateformes et Bridge
Applications natives pour web, mobile et desktop. Proton Mail Bridge intègre les clients IMAP/SMTP comme Outlook ou Thunderbird sans perte de sécurité — idéal pour les professionnels avec outils existants.
Alias hide-my-email et écosystème
Via SimpleLogin, générez des alias jetables contre spam et traçage. Lien fluide avec Calendar, Drive, VPN et Pass. Les entreprises obtiennent domaines personnalisés et support prioritaire sur les forfaits payants.
| Assurance & compliance | ArkiaSuite | Proton Mail |
|---|---|---|
| Independent security / no-logs audit | Not found No public third-party security or no-logs audit PDF found on the site. | Non indiqué |
| ISO 27001 | Not found No ISO 27001 claim located on arkiasuite.fr. | Non indiqué |
| SOC 2 / SOC 3 | Not found | Non indiqué |
| GDPR / EU data protection | Vendor claimed French EURL controller/processor; public privacy policy and Art. 28 contract. Confirm fit for your processing roles. | Non indiqué |
| US CLOUD Act exposure (indicative) | Partial French entity with no known US parent; content on operator-owned FR servers. Residual exposure via Stripe (US-group payments) and Have I Been Pwned password API. Not legal advice. | Non indiqué |
| Data processing agreement (B2B) | Vendor claimed Public Art. 28 subcontracting agreement accepted at signup/order; printable signature annex available. | Non indiqué |
| EU AI Act | Not applicable Face grouping on photos is a biometric-adjacent feature for the account holder's own library; product is not marketed as a general-purpose AI system. | Non indiqué |
| SecNumCloud / HDS | Not found Vendor materials do not claim SecNumCloud or HDS; submitter also stated none. | Non indiqué |
| Considerations & known limitations | ArkiaSuite | Proton Mail |
|---|---|---|
| No disk encryption at rest on site | Medium Vendor states Frontenex disks are protected by physical lock, not encryption at rest. Off-site backups are encrypted because they travel. Theft of powered-off disks or physical access is a different threat model than hyperscaler encrypted volumes. | Non indiqué |
| No end-to-end encryption | Medium Administrator access can technically read stored files. Fine for many SMEs that need server-side search and previews; incompatible with E2EE mandates. | Non indiqué |
| Single-operator support and admin | Medium Art. 28 text states only Gérald Sonzogni has admin access and answers support. Strong accountability, weak redundancy for holidays, illness or exit planning. | Non indiqué |
| Limited non-Windows clients | Medium Windows app ships; Android and Apple clients are not fully released. Browser access mitigates some gaps but not all mobile workflows. | Non indiqué |
| No SecNumCloud, HDS or public audit | High No independent audit, ISO 27001, SOC 2, SecNumCloud or HDS found. Public-sector and health buyers with those gates must look elsewhere. | Non indiqué |
| US-group payment subprocessor | Low Stripe Payments Europe processes cards. Content is said not to leave GS Informatique servers, but payment metadata still involves a US-group processor. | Non indiqué |
When: You need a mail-centric European suite with a longer public track record
Consider: mailbox.org or Proton Mail
Stronger mail heritage; less emphasis on operator-owned photo backup in Savoie
When: You want groupware with calendar/mail and more mature multi-platform clients
Consider: Kolab Now
Swiss/European groupware peer in the catalog
When: You want to operate the stack yourself on chosen EU infrastructure
Consider: Nextcloud
Self-host platform rather than GS Informatique-operated SaaS
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