Comparison
ContactsPlus vs
ContactBook
ContactBook keeps one service in sync. ContactsPlus keeps three in sync both ways, as changes happen: Apple iCloud, Google and Microsoft. That single difference is what the whole comparison below is built on.
ContactsPlus
Three providers, both directions, as changes happen.
Result: one address book that stays correct in every account, with the same person merged into a single record.
ContactBook
One provider stays in sync, on a timer, and only on the top plan.
Result: Microsoft and iPhone contacts are copied once and then drift. Only Google is ever brought back up to date.
At a glance
ContactsPlus vs ContactBook: across 51 compared features, 29 are available only in ContactsPlus and 22 exist in both. The gap is widest on sync. ContactBook keeps only Google in sync, on its top plan, every four hours.
- Apple iCloud sync — ContactBook can import from iCloud, but never sync it
- Two-way Microsoft sync, where ContactBook offers a one-time import
- Sync as changes happen, not on a four-hour cycle
- A free forever plan, where ContactBook is trial-only
The scoreboard
51 features compared
Every capability ContactsPlus ships, checked one by one against ContactBook’s own documentation.
- 29 only in ContactsPlus
- 22 in both products
Why speed matters
A number changes at 9am. Who knows?
ContactBook’s Google sync runs on a four-hour cycle, and only for customers on its top plan. ContactsPlus pushes the change as it happens. (Their pricing page says four hours; two other pages on their site say once a day.)
You choose
Three ways to sync, and you pick for each account
Not every account should behave the same way. A work Google account might need to stay identical in both places, while an old iCloud account should only ever be read. ContactsPlus lets you set the direction on each account separately, change it whenever you like, and it applies in real time.
Two-way sync
Your account and ContactsPlus stay perfect copies of each other. Every add, edit and delete flows in both directions.
Pull contacts in
One-way, into ContactsPlus. It only reads, so your source account is never changed. It’s the lightest and fastest option.
Push contacts out
One-way, outward. ContactsPlus pushes your cleaned-up master list to an account, and is never changed by it.
Beyond a clean address book
Four things ContactsPlus does that most tools leave to you
Getting the contacts right is the start. These are the four that save the most time afterwards.
Email signatures, read for you
ContactsPlus reads the signature block on mail you already receive and fills in the job title, company and direct line by itself. Nothing to copy, nothing to type. The records just get better while you work. Premium and Teams.
Tasks that reach your calendar
Give a follow-up a due date and time and it turns up in your calendar, whether that’s Google, Outlook or Apple. Snooze it, filter a long list down to today, and start each morning with a digest of what is due.
Team tasks, with real permissions
Put a task in a shared address book and it becomes the team’s. Assign it to a colleague, control who can act on it, and see who closed it and when. Everyone works the same list instead of chasing each other. Teams.
One document, many contacts
Attach a contract, proposal or scan to the person it belongs to, and to everyone else involved. Link one file to as many contacts as you like: it’s stored once and counted once against your storage, however many people it sits on. On every plan, team or not.
The full matrix
Every ContactsPlus feature, checked against ContactBook
Where a ContactsPlus feature needs a paid plan, we name the plan rather than quietly implying it’s free.
| Feature | ContactsPlus | ContactBook |
|---|---|---|
| Sync & accounts | ||
| Apple iCloud syncOnly usNative two-way sync. ContactBook offers a one-tap iCloud import on mobile, but no iCloud sync on any plan. | ✓ | — |
| Google Contacts syncContactBook: Pro+ plan only | ✓ | ✓ |
| Two-way Microsoft / Outlook syncOnly usContactBook imports Microsoft contacts; its own help states changes never sync back | ✓ | — |
| All three providers kept in two-way syncOnly us | ✓ | — |
| Sync as changes happenOnly usReal time on Premium & Teams. ContactBook’s Google sync runs on a four-hour cycle. | ✓ | — |
| Choose the sync direction per accountOnly usTwo-way, pull in, or push out, set per account and changeable any time. ContactBook’s direction is fixed by your plan. | ✓ | — |
| Edits flow back to every connected accountOnly usContactBook writes back to Google only | ✓ | — |
| CSV & vCard import / export | ✓ | ✓ |
| Contact backup | ✓ | ✓ |
| Cleaning up contact data | ||
| Duplicate detection & mergeContactsPlus: Premium & Teams | ✓ | ✓ |
| Merge duplicates held in different providersOnly usThe same person in Gmail, iCloud and Outlook, merged into one record | ✓ | — |
| Contact enrichmentOnly usPremium & Teams. ContactBook lists enrichment under “coming soon”. | ✓ | — |
| Profile photo matchingOnly usPremium & Teams | ✓ | — |
| Stale-record cleanupOnly usFlags contacts whose details have gone out of date, on Premium and Teams | ✓ | — |
| Email signature extraction (Gmail)Only usPremium & Teams | ✓ | — |
| The contact record | ||
| Emails, phone numbers & addressesAdd as many as you need per contact | ✓ | ✓ |
| Job title, company & department | ✓ | ✓ |
| Website URLs & social profiles | ✓ | ✓ |
| Profile photos | ✓ | ✓ |
| Messaging handles (IM) | ✓ | ✓ |
| Custom fields | ✓ | ✓ |
| Birthdays & important dates | ✓ | ✓ |
| RelationshipsOnly usLink family, colleagues & referrals | ✓ | — |
| Notes | ✓ | ✓ |
| Dated note historyOnly usA running history on the record, not one free-text box | ✓ | — |
| Capturing & organising | ||
| Business card scanningOnly us100 cards a month on Premium. ContactBook lists card scanning under “coming soon”. | ✓ | — |
| Tags | ✓ | ✓ |
| Follow-ups & tasks | ||
| Reminders on a contactContactsPlus: Premium & Teams | ✓ | ✓ |
| Tasks built in, not an add-on to switch onOnly usContactBook’s reminders are an add-on you activate, and its entry plan includes none at all | ✓ | — |
| Snooze and reschedule a taskOnly usA human-friendly snooze on every task | ✓ | — |
| A task list with its own viewsOnly usFour views with live counts, and Today puts overdue first | ✓ | — |
| Filter a long task listOnly usSlice by contact, date and status | ✓ | — |
| Push follow-ups to your calendarOnly usOne-way push to Google, Outlook & Apple | ✓ | — |
| Daily task digest emailOnly us | ✓ | — |
| Branded task activity reportsOnly usPDF or CSV, on Premium and Teams | ✓ | — |
| Shared team tasks, assignment & permissionsOnly usTeams | ✓ | — |
| Documents on the contact record | ||
| Attach files to contactsDrag and drop in both products | ✓ | ✓ |
| A library of every file, across all contactsOnly usAnswers “where is that quote?” when you can’t remember whose record it’s on | ✓ | — |
| Preview a file without downloading itOnly us | ✓ | — |
| Your document library on your phoneOnly usThe library, the filters and each contact’s files. ContactBook’s mobile feature list omits attachments entirely. | ✓ | — |
| Link one file to many contactsOnly usStored once, counted once against your storage | ✓ | — |
| Virus scanning on uploadOnly usFlagged files quarantined, not silently deleted | ✓ | — |
| 30-day Trash for deleted filesOnly usRestore a file, or empty Trash to reclaim space | ✓ | — |
| Sharing with a team | ||
| Shared address book on Teams | ✓ | ✓ |
| User roles | ✓ | ✓ |
| Permission management | ✓ | ✓ |
| Shared notes & contact owner | ✓ | ✓ |
| Apps & plans | ||
| Web app | ✓ | ✓ |
| iOS app | ✓ | ✓ |
| Android app | ✓ | ✓ |
| Free forever planOnly us1,000 contacts and the full contact record. ContactBook is trial-only. | ✓ | — |
A dash means the capability is either not offered or not documented anywhere on ContactBook’s own site. All ContactBook entries were taken from their published pricing, feature and help pages in August 2026. Their plans are theirs to change — check their pricing page before you decide.
Often overlooked
Five things people don’t realise we include
Comparison tables elsewhere sometimes list these as missing. All five ship today. Here’s where each one lives.
| Feature | ContactsPlus | Where you’ll find it |
|---|---|---|
| Shared contact groups | ✓ | Shared address book on Teams |
| File attachments | ✓ | On every plan, including Free |
| Custom reminders | ✓ | Tasks & reminders on every plan |
| Private & public notes | ✓ | Notes on every plan; shared notes on Teams |
| Unlimited contacts | ✓ | Teams plan |
All five are listed on our pricing page if you’d like to check them.
Moving over
How to switch from ContactBook
There’s no migration project here. Your contacts already live in Google or Microsoft, and ContactsPlus connects to those same accounts and reads them directly.
1. Get your data out first
Before you cancel anything, export from ContactBook as CSV or vCard and keep the file. It costs nothing, and it means the decision is reversible. Do this while your subscription is still active.
2. Connect the same accounts
Sign in to ContactsPlus and connect the Google and Microsoft accounts you had linked to ContactBook. Contacts flow in directly, with names, numbers, addresses and photos, and no file handling at all. More on how sync works.
3. Add the iPhone side
Connect the iCloud account your iPhone uses. That’s the part ContactBook can copy but never keep current. It joins the same list instead of sitting beside it, so you finally see one record per person.
4. Clean up what arrives
Pulling several sources together surfaces duplicates. Run duplicate detection, merge what it finds, then let enrichment fill the gaps. This is the step that makes the list worth sharing.
Nothing is moved out of Google, Microsoft or Apple. ContactsPlus syncs with them. Gmail autocomplete keeps working, your iPhone keeps showing your contacts, and if you disconnect later, every source account is exactly where you left it.
Questions
Frequently asked questions
What is the main difference between ContactsPlus and ContactBook?
Sync coverage. ContactBook syncs with Google Contacts only, on its top Pro+ plan, on a four-hour cycle; Microsoft and iCloud contacts can only be imported, never synced. ContactsPlus syncs Apple iCloud, Google and Microsoft together, two-way and as changes happen, on every paid plan.
Does ContactsPlus sync with Outlook or Microsoft 365?
ContactBook imports from a Microsoft account, which is a one-time copy rather than a sync. Its own help documentation states that imported contacts don’t sync back, and that two-way sync is available only to Google Sync plan users. ContactsPlus keeps Microsoft accounts in continuous two-way sync alongside Google and iCloud.
Can ContactsPlus sync my iPhone contacts?
Not as a sync. ContactBook’s mobile app can import contacts from iCloud, but that’s a one-time copy. Its sync documentation covers Google only, and no plan lists an iCloud sync. Imported Apple contacts stop updating the moment they land. ContactsPlus keeps iCloud in continuous two-way sync alongside Google and Microsoft.
How quickly does ContactsPlus sync a change?
Their pricing page states every four hours, on the Pro+ plan only. Two other pages on their own site state once a day. ContactsPlus syncs in real time on Premium and Teams, and daily on the free plan.
What can ContactsPlus do that ContactBook can’t?
Twenty-nine capabilities in the matrix above, including Apple iCloud sync, two-way Microsoft sync, sync as changes happen rather than every four hours, per-account sync direction, merging duplicates held in different providers, contact enrichment, profile photo matching, stale-record cleanup, Gmail email-signature extraction, business-card scanning, relationships, pushing follow-ups to your calendar, branded task reports, shared team tasks, virus scanning on upload, a 30-day file trash, and a free forever plan.
Does ContactsPlus have tasks and follow-up reminders?
Not to the same depth. ContactBook’s reminders are an add-on you switch on from an Add-Ons section, and its two cheapest plans include no reminders at all. The Pro plan caps them at five. Its own documentation describes them as reminders about important dates such as birthdays and anniversaries. ContactsPlus Tasks is a task system: due dates and times, snooze, four task views with live counts and overdue first, filters, shared team tasks with attribution, a daily digest email and branded activity reports.
Can I attach documents to a contact in ContactsPlus?
Attaching a file is much the same. Both let you drag and drop a document onto a contact. The difference is everything around it. ContactsPlus adds a library that rolls up every file across all contacts, in-place preview, filters, a 30-day Trash you can restore from, virus scanning on every upload, and the ability to link one file to many contacts while storing and counting it only once. None of those are documented anywhere on ContactBook’s site.
Does ContactsPlus have a free plan?
Yes, free forever: one synced account, 1,000 contacts, and the full contact record including notes, tasks, custom fields and file attachments. ContactBook has no free plan, only a time-limited trial.
Is ContactsPlus a good ContactBook alternative?
It depends on where your contacts live. If everything sits in one Google account and you only need a cheap shared list, ContactBook covers that. If your contacts are spread across Google, Microsoft and Apple accounts, ContactsPlus is the stronger ContactBook alternative, because it keeps all three in two-way sync as changes happen, merges the duplicates between them, and starts on a free forever plan rather than a trial.
Can I move my contacts from ContactBook to ContactsPlus?
Yes. Export from ContactBook as CSV or vCard and import into ContactsPlus, or simply connect the same Google and Microsoft accounts and let ContactsPlus pull the contacts in directly. Duplicate detection and merge then reconciles anything that arrives twice.
One address book. Every account.
Apple iCloud, Google and Microsoft in one list, with the duplicates gone. Free to start, no card needed.
Try ContactsPlus free