Common questions, answered plainly.

No. On iPhone, iSync365 creates its own separate contacts account — completely separate from your personal iCloud contacts. It shows up everywhere personal contacts do (Phone, Messages, FaceTime), but it's never merged with anything already on the device. Nothing gets deleted, reorganized, or combined with what's already there. If someone ever loses access to a list, only that separate business account is affected — their personal contacts are never touched.

No — it's contacts only. Setting this up creates a separate account on your phone that handles just the business contact lists you've been assigned. It doesn't touch your email, photos, messages, location, or anything else on the device. If you're ever removed from a list, that separate account is the only thing affected — nothing else on your phone is touched, whether it's your own device or a company one.

iSync365's Phone Sync delivery runs on CardDAV, the standard behind separate, named address books. CardDAV is built into iOS natively — no extra app, no extra setup. Android doesn't support CardDAV the same way, so this specific zero-app approach is iPhone-only.

That's not the whole picture, though — the Work Contacts mobile app is fully native on both iPhone and Android, including caller ID and, on Android, messaging integration. If Phone Sync's zero-app approach isn't essential for your team, Android and iPhone are on equal footing through the app. See our Android question below for details.

No. iSync365 is built primarily around Microsoft 365 and iPhone, but Phone Sync and the Work Contacts mobile app also work for organizations without a Microsoft 365 subscription, at a reduced $1.50/user/month. We provision a local admin account directly for your organization, and contact lists are built manually or via CSV import rather than pulled from an Entra directory — recipients are added by email address. Outlook sync itself isn't available in this setup, since it depends on a Microsoft 365 mailbox, but automatically delivered, organized contact lists on your team's phones work the same either way. Onboarding for this path is hands-on rather than self-service — reach out and we'll walk through what's included.

Every Microsoft 365 tenant already includes a Global Address List (GAL) — your organization's built-in directory. But having a GAL doesn't mean those contacts show up anywhere useful. GAL entries are searchable — you can look someone up if you already know their name — but they're not a browsable directory you can scroll through, and you can't organize them into lists inside Outlook — no Sales Team folder, no Vendors folder, nothing like that. If you want a whole department's contacts in front of you, you're opening each person one at a time. iSync365 builds the organized lists your GAL can't — you decide who's on each one — and pushes them right into Outlook, not just onto the phone.

Outlook's "Save Contacts" option only syncs whatever's already sitting in your personal Outlook Contacts folder — the people you've individually emailed or saved — not your organization's actual directory. If your company has eighty people in it, Save Contacts only puts the handful you've personally interacted with onto your phone, not the real thing. iSync365 works differently: you build organized contact lists, however makes sense for your business, and decide exactly who receives which list — real control you don't get from Save Contacts or a native Exchange account, since both just give you whatever's already sitting there.

You can, and it's free — but it comes with a real limitation: it only pulls contacts from the mailbox's default root folder. EAS support for subfolders is inconsistent across devices — any folders you've built in Outlook to stay organized (a Sales Team folder, a Vendors folder) may not display at all, or may get flattened into one list, depending on the phone. So even if you've done the work of organizing your contacts, your phone may not see any of that structure. On top of that, EAS is a protocol Microsoft is actively retiring, as covered on our Security & Compliance page. iSync365 solves this directly: pushing specific lists into Outlook and onto the phone via CardDAV creates a real, scrollable, organized directory — automatically, for everyone, not one contact at a time.

A shared spreadsheet is where a lot of companies start, and it's a reasonable place to begin. The trouble shows up as it grows: entries go stale the moment someone changes a number or leaves, nobody remembers to check it, and getting the right data onto someone's actual phone or into Outlook means manually copying it over — if it happens at all. iSync365 replaces that manual copy-paste cycle entirely: build the list once, and it stays current in Outlook and on the phone automatically, without anyone needing to remember to check a shared file.

Every list is assigned to specific people, not blasted out to everyone. When someone joins, you add them to whichever lists match their role, and their device automatically gets exactly what they need — nothing more. When someone leaves, or changes roles, you simply remove them from the list, or remove their account entirely. From that point, there's nothing left for their phone or Outlook to pull, because the contacts were never tied to a folder sitting on the device — they were tied to their account. The next time their device checks in, whatever they'd been receiving comes off automatically. Nothing to track down, nothing to manually delete — and it works exactly the same whether it's a company-managed phone or someone's own personal device.

Not at all — iSync365 was built with exactly this in mind. Whoever manages your Microsoft 365 today, whether that's you or an office manager, can set this up themselves; it doesn't require ongoing technical maintenance once your lists are built. And for any devices that aren't centrally managed by the business, we walk through setup with you directly during onboarding, so nobody's left guessing on their own.