Mailo vs ContactOffice Mail
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mailo
This app provides a secure, all-in-one platform for email, calendar, contacts, and cloud storage, prioritizing user privacy and data confidentiality. It offers tailored accounts for individuals, families, and professionals, with a focus on ethical data handling and a reduced environmental footprint.
- Secure email service
- Synchronized address book
- Calendar management
- Cloud storage for documents and photos
- Photo sharing albums
- Real-time push notifications
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With the Mailo app, access a complete suite of services designed to protect your privacy and personal data: email, calendar, contacts, documents, photos, and much more, all in one app. • A comprehensive and secure email service • An address book synchronized with your device • A calendar to manage your schedule • Cloud storage for storing and sharing documents and photos • Photo albums to share with your loved ones Mailo meets everyone's needs: • Individuals: a free Mailo Free account or Mailo Premium starting at $1/month • Children: a free, 100% secure email address and a fun, ad-free interface • Families: an account for everyone, a shared domain name, a family website • Professionals, associations, schools, and town halls: Mailo Pro accounts with centralized administration and a personalized domain name Mailo, designed and hosted in Europe (France), is proud of its commitments and values: • Data confidentiality and security • A reduced environmental footprint • The defense of an open and sovereign Internet • Priority given to user needs The app puts all of Mailo in your pocket: • Quick and direct access to your inbox • All Mailo services in a single app • Real-time push notifications for new messages • Access to advanced features (read receipts, PGP encryption, etc.) • Synchronization of your address book with that of your phone or tablet Log in with a Mailo account or create your email address for free in just a few seconds. For more information: https://www.mailo.com https://www.mailo.com/mailo/en/mailo.php
ContactOffice Mail
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A white-label email suite — custom-branded email, calendar, drive & contacts in one secure app. Access your organization’s branded email address, share files, sync calendars, and manage contacts securely — anytime, anywhere. Email • Get a private-label email address with your domain • Send and receive emails seamlessly • Switch between multiple mailboxes with ease • Organize your inbox with folders, labels, and swipe actions • Get real-time new email notifications • Supports access via POP, IMAP, and SMTP using third-party clients Drive / Cloud Storage • Access your private and shared documents anytime • Organize files with folders and labels • Collaborate using shared workspaces or groups • Share files publicly when needed • Compatible with WebDAV for third-party access Calendar • View private and shared calendars • Create, accept, and manage meetings • Overlay multiple calendars • Set reminders and share calendars publicly • Sync with CalDAV Contacts • Manage private and shared address books • Organize contacts using labels and comments • Search contacts and access mailing lists • Connect via CardDAV White-Label Email Solution • Get a custom-branded version of ContactOffice with your own domain name and visual identity • Customize tools, user profiles, and security policies • Single Sign-on (SSO) and other authentication systems • Use an administration console and API to manage user accounts • Tailor features and storage to your exact needs— no one-size-fits-all limitations Examples of supported private-label services: • contactoffice.com • contactoffice.fr • mail.be • email.fr • avocat.be • advocaat.be Learn more: • Website: https://contactoffice.com • Support: https://www.contactoffice.com/virtual-office/en/about/support.jsp • User Manual: https://www.contactoffice.com/virtual-office/en/support/user-manual.jsp
Screenshots
Verdict
The clearest difference is ads: ContactOffice Mail at none against Mailo's shown. ContactOffice Mail also leads on update cadence (monthly vs every 7 months). Mailo's advantage is iOS requirement (11.0 vs 13.4). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Mailo ships an update every 7 months, ContactOffice Mail monthly. The most recent releases landed on October 23, 2026 and October 11, 2026 respectively.
| Parameter | Mailo | ContactOffice Mail |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 28.6% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 7 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 12 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Mail Object | Contactoffice Group |
In-app purchases
Mailo
No in-app purchases
ContactOffice Mail
No in-app purchases








