Calendox vs SyncThemCalendars: Features and Pricing
By CalendoxPublished Updated 7 min read
Calendox publishes this page and is one of the two products compared. SyncThemCalendars details come from the public sources linked under Sources; we have not tested SyncThemCalendars hands-on. How we compare
In short
SyncThemCalendars and Calendox both sync Google and Microsoft calendars at similar per-person prices, but SyncThemCalendars says it does calendar sync only. Calendox adds booking pages and a unified calendar on Personal and Business plans, team administration on Business and admin-run Microsoft 365 tenant sync on Enterprise. It suits people and teams who want sync, scheduling and one calendar view.
- Both products copy events one-way or both ways between Google and Microsoft calendars.
- Calendox adds a unified calendar and booking pages on every Personal and Business plan. SyncThemCalendars says it does calendar sync only.
- Calendox Business gives a team Admin and Member roles, per-seat billing and licenses. Every SyncThemCalendars plan is for 1 user.
- Calendox Enterprise syncs calendars between Microsoft 365 tenants after one admin consent per tenant, so employees never sign in.
Why Calendox
A unified calendar that writes back
Personal and Business plans include a unified calendar with six views that saves new events and edits to the Google or Microsoft calendar they belong to.
Scheduling as well as sync
Alongside sync, every Personal and Business plan includes booking pages that offer only the times when your connected calendars are free.
Team accounts with admin roles
Business accounts give a team Admin and Member roles, per-seat billing and licenses that admins assign to members.
Microsoft 365 tenant-to-tenant sync
On Enterprise, an admin runs sync between Microsoft 365 tenants after each tenant's administrator consents once, so employees never sign in.
Feature comparison
| Feature | Calendox | Sync |
|---|---|---|
| Three or more calendars in one sync (Calendox advantage) | Yes, Up to 25 on Premium, separate accounts | Partly, One pair of calendars per sync [2] |
| Unified calendar (Calendox advantage) | Yes, Web app, Personal and Business | No, Per its product pages [3] |
| Booking pages with meeting links (Calendox advantage) | Yes, 2 on Basic, then unlimited (fair use) | No, Sync only, by design [4] |
| Team administration (Calendox advantage) | Partly, Roles and seats, no SAML or SCIM | Not listed on SyncThemCalendars's website, Every plan is for 1 user [1] |
| Microsoft 365 tenant-to-tenant sync (Calendox advantage) | Yes, Admin-run, on Enterprise accounts | Partly, Per-user sync across tenants [5] |
| Google Calendar and Outlook, personal and work accounts | Yes, No shared-mailbox calendars | Yes [6] |
| Apple iCloud or other calendar services | No, Google and Microsoft only | Yes, Apple iCloud [1] |
| One-way and multi-way sync | Yes, On every plan | Yes, One-way or two-way, per pair [2] |
| Near real-time Google and Microsoft sync | Yes, Typically under a minute | Yes, “In moments”; iCloud every few minutes [2] |
| Field choice and event filters | Partly, Fields and privacy, no filters | Yes, Keyword filters, up to 5 terms [8] |
| More than 25 calendars per user | No, Up to 25 on Premium, with 25 syncs | Yes, Unlimited; plans limit syncs [1] |
| 14-day free trial, no credit card | Yes, Premium-level on Personal and Business | Yes, Described as fully featured [7] |
- Yes
- Partly
- No
- Not listed on SyncThemCalendars's website
- Calendox advantage
Pricing compared
| Scenario | Calendox | SyncThemCalendars |
|---|---|---|
| One person keeping a Google and an Outlook calendar in two-way sync, billed monthly (billed per user) | Basic, $5/month | Basic, $4.99/month [1] |
| One person keeping a Google and an Outlook calendar in two-way sync, billed annually (billed per user) | Basic, $4/month billed annually ($48/year) | Basic, $47.88/year [1] |
| One person on each product's highest individual plan (Calendox Premium: 25 calendars, 25 syncs), billed monthly (billed per user) | Premium, $22/month | Professional, $19.99/month (36 syncs, each linking one pair of calendars, and unlimited calendars) [1] |
| One person on each product's highest individual plan (Calendox Premium: 25 calendars, 25 syncs), billed annually (billed per user) | Premium, $17/month billed annually ($204/year) | Professional, $215.88/year (36 syncs, each linking one pair of calendars, and unlimited calendars) [1] |
Calendox prices are in USD, and taxes may apply by country. SyncThemCalendars prices are as published on its website.
Details
| Feature | Calendox | SyncThemCalendars |
|---|---|---|
| Calendars supported | Google Calendar and Microsoft Outlook: Microsoft 365 work or school accounts plus personal Outlook.com, Hotmail and Live accounts. Apple iCloud is not supported. | Google Calendar, Microsoft Outlook (work or school, plus personal Outlook.com, Hotmail and Live accounts) and Apple iCloud [6] |
| Sync directions | One-way: one source copied into targets in other connected accounts. Multi-way: two or more calendars, each from a different connected account, in one sync. A calendar can be in only one sync. | One-way or two-way. Each sync links one pair of calendars, across providers or within one. A two-way pair is one sync, and a calendar can join several syncs. [2] |
| Update speed | Changes usually arrive within seconds, because Google and Microsoft notify Calendox as soon as an event changes. | Push-based for Google and Outlook: they notify SyncThemCalendars the moment something changes, so copies update “in moments”. Apple iCloud is checked “every few minutes”. [2] |
| Unified calendar | Included on every Personal and Business plan. A working calendar with six views that writes new events and edits back to Google or Microsoft. | No unified calendar app, per its product pages [3] |
| Booking pages | Included on every Personal and Business plan. Basic has 2 pages, and Standard and Premium are unlimited (fair-use limits apply). | SyncThemCalendars says it offers no booking links, by design, as it does calendar sync only. [4] |
| Team administration | Business accounts have Admin and Member roles, per-seat billing for the team, and licenses that admins assign to members. | Every plan is for 1 user. Team billing, admin roles and member management are not listed on its website. [1] |
| Microsoft 365 tenant-to-tenant sync | Enterprise accounts sync calendars between two or more Microsoft 365 tenants. Each tenant's administrator consents once, so no employee has to sign in. | Per user. Each person connects their own account in each tenant. If a tenant blocks third-party apps, its admin can grant consent. [5] |
| Trial | 14-day free trial, no credit card required. On Personal and Business it carries Premium-level limits; if it ends without a subscription, syncs pause. | 14-day free trial, no credit card required, which SyncThemCalendars describes as fully featured. After it, a paid subscription keeps syncs running. [7] |
Choose Calendox if…
- You want your Google and Microsoft calendars in one working calendar view, as well as kept in sync.
- You want booking pages that offer only the times when all your connected calendars are free.
- You're buying for a team and want admins to manage members, seats and licenses in one Business account.
- You need calendars synced between Microsoft 365 tenants without each employee signing in.
- You want one sync to hold several calendars from different Google and Microsoft accounts in step, or to copy one source into several targets.
Questions
How is Calendox different from SyncThemCalendars?
SyncThemCalendars says it does calendar sync only, while Calendox also offers booking pages and a unified calendar on Personal and Business plans, and team administration on Business. For Microsoft 365, Calendox Enterprise accounts run admin-managed sync between tenants, where SyncThemCalendars describes per-user sync across tenants. Both products copy events one-way or both ways between Google and Microsoft calendars.
How do the two products count plan limits?
SyncThemCalendars limits only syncs, each linking one pair of calendars, while Calendox limits both connected calendars and syncs, and one Calendox sync can span several calendars.
- SyncThemCalendars: 5, 16 or 36 syncs by plan, each one-way or two-way between one pair of calendars, and unlimited calendars on every plan, per its pricing.
- Calendox: Basic, Standard and Premium allow 2, 5 or 25 connected calendars and 2, 5 or 25 syncs. A single multi-way sync can include two or more calendars, each from a different Google or Microsoft account, and a single one-way sync can copy one source calendar into one or more targets. Each calendar can be in only one Calendox sync.
Because a sync means something different in each product, compare plans by the calendars you want to keep in step. Plans and billing lists each Calendox plan's limits, and the pricing page has current prices.
Can one Calendox sync keep more than two calendars in step?
Yes. A multi-way sync treats every calendar in it as both source and target: add, change or delete an event in one, and the change reaches the rest. Each calendar in it must come from a different Google or Microsoft account. Multi-way sync is on every plan and in the trial, and each calendar in the sync counts toward your plan's connected-calendar limit.
Which Calendox features go beyond calendar sync?
The unified calendar and booking pages, on every Personal and Business plan:
- Unified calendar. All your Google and Microsoft calendars in one color-coded calendar, with six views from Agenda to Year. New events and edits made there go straight back to the Google or Microsoft calendar they belong to. See how the unified calendar works.
- Booking pages. Public scheduling pages that check your availability across all your connected calendars and create each booking on a calendar you choose. A booking can get a Google Meet or Microsoft Teams link where the destination calendar supports it, or a Zoom link once you connect Zoom. It can also have a phone, address or custom location. You get 2 pages on Basic and unlimited pages on Standard and Premium (fair-use limits apply). See how booking pages work.
Enterprise accounts don't include the unified calendar or booking pages.
Can a team share a Calendox subscription?
Yes, with a Business account. Admins invite members, buy seats on one or more plans and assign each member a license. The team's subscriptions belong to the team rather than to any one admin. Each licensed member connects their own calendars and runs their own syncs, within their license's plan limits.
Until the team subscribes, members need no license: each one syncs on their own trial. Once the team subscribes, each member needs a license, and a member without one has their syncs paused until an admin assigns one. SyncThemCalendars plans are each for 1 user, per its pricing.
How does Calendox sync calendars between Microsoft 365 tenants?
Through an Enterprise account: an administrator of each tenant consents once for the whole Microsoft 365 organization, so employees never sign in. The Calendox admin then imports and pairs calendars from a tenant dashboard.
- Calendars from the first tenant you connect, the master tenant, are free. Each secondary-tenant calendar you import takes one seat.
- A sync needs at least two connected tenants.
- Calendox pairs calendars on its own only when the email username and the calendar name both match. You pair the rest by hand or by CSV import.
- Only Microsoft 365 tenants can be connected this way.
SyncThemCalendars describes per-user cross-tenant sync, where each person connects their own account in each tenant. For what Microsoft 365 can share between tenants without a sync tool, read our guide to tenant-to-tenant calendar sharing and sync.
Do Calendox syncs keep running after the trial?
Only with a subscription. If the trial ends before you subscribe, your syncs pause. Calendar connections and settings are kept, events already synced stay in your calendars, and the syncs resume once you subscribe. On Business, a member's paused syncs restart when they are assigned a license from the team's subscription.
Sources
- SyncThemCalendars: home page and pricing
- SyncThemCalendars: Two-way calendar sync
- SyncThemCalendars: CalendarBridge alternative
- SyncThemCalendars: OneCal alternative
- SyncThemCalendars: Calendar sync for consultants
- SyncThemCalendars: Outlook calendar sync
- SyncThemCalendars: Cancellation policy
- SyncThemCalendars: Filter events when syncing
- Calendox: Plans and billing
- Calendox: Pricing
- Calendox: Enterprise accounts
Related reading
Calendox vs CalendarBridge: Sync, Plan Limits and Price
Calendox counts the calendars you import, while CalendarBridge counts each one-way connection. What that means for price, booking pages, trials and tenant sync.
Stop Double-Booking Work and Personal Calendars
Why work and personal calendars double-book you, where Outlook and Google fixes stop, and how to block time privately and share a booking link that checks both.
Calendar Sync Between Two Microsoft 365 Tenants
What two Microsoft 365 tenants can share, how the EWS shutdown starting October 1, 2026 affects it, and how to keep events synced across tenants.