OneCal Alternative: Faster, Cheaper, No Lock-In

10 min read
OneCal Alternative: Faster, Cheaper, No Lock-In

You’ve been using OneCal, and something doesn’t feel right. Either the price went up again. Or you’re waiting minutes for events to sync. Or you’re stuck in a paid plan because there’s no free tier to test with first.

You’re not wrong to be frustrated. According to Atlassian’s 2024 State of Teams report, 76% of knowledge workers manage events across multiple calendar systems -- reliable, affordable sync is a real need.

OneCal is a calendar sync tool, and it does sync calendars. But it’s built on assumptions that work for OneCal’s business model, not necessarily for yours. We built SYNCDATE because we think calendar sync can be better: faster, cheaper, and more transparent about how much you’re actually paying.

What OneCal Does

OneCal is straightforward: it keeps your Google Calendars in sync. Multi-way sync (more than two calendars), privacy controls, simple dashboard. It works. But the pricing model and sync speed are where the friction starts.

OneCal’s approach:

  • Syncs Google Calendar with Google Calendar (and some Outlook support)
  • Polling-based sync (checks every few minutes)
  • Privacy controls available
  • Plans starting at $5/month for 2 calendars
  • No free tier to try before buying

The no-free-tier approach is the first problem. You’re forced to commit money before knowing if the product actually solves your problem.

SYNCDATE’s Advantages

We built SYNCDATE with a different philosophy: do one job better, charge less, offer a free tier so you can actually test it.

Speed: SYNCDATE syncs in approximately 4 seconds using Google Calendar push notifications (webhooks) and Microsoft Graph change notifications. OneCal syncs every few minutes (typically 3--5 minutes). This is a 45--60x speed difference. When you add an event, SYNCDATE shows it on your other calendars almost instantly. With OneCal, you wait. For most people, this delay is annoying. For teams coordinating in real-time, it’s a real problem.

Price: OneCal starts at $5/month for 2 calendars. SYNCDATE Starter is €1.99/month for 9 calendars. If you have 5 calendars, you’re paying €1.99 on SYNCDATE and $10/month on OneCal. That’s a 5x price difference.

Free Tier: SYNCDATE is free forever for 2 calendars. No credit card. No trial period that expires. You can test it indefinitely. OneCal forces you to pay to try. This matters because sync tools require testing — you need to live with the product for a few days to know if it works for your workflow.

Privacy by Default: SYNCDATE shows synced events as “Busy” without exposing details. Your colleagues see you’re unavailable without reading your meeting notes. OneCal has privacy controls, but they’re optional and not the default. We made privacy the default because we think it matters.

Hosting Transparency: SYNCDATE is hosted in the EU (Hetzner, Germany) with AES-256 encrypted tokens, subject to GDPR data protection requirements. We’re transparent about where your data lives. OneCal doesn’t publish their infrastructure details.

Clean Exit: If you disconnect a calendar from SYNCDATE, we help you clean up the events we created. OneCal doesn’t have the same level of control. You’re left manually removing synced events.

OneCal’s Advantages

To be fair, OneCal has some strengths:

Established Product: OneCal has been around longer. If you value proven stability and a larger user base, that’s worth considering.

Some Outlook Support: OneCal supports limited Outlook syncing. SYNCDATE fully supports both Google Calendar and Microsoft Outlook/Office 365 via the Microsoft Graph Calendar API.

But honestly? These don’t outweigh the speed and price disadvantages for most Google Calendar users.

Pricing Breakdown by Use Case

Let’s show actual costs for common scenarios.

Scenario 1: 2 Calendars (Personal + Work)

  • OneCal: $5/month = $60/year
  • SYNCDATE: Free forever
  • Savings: $60/year

Scenario 2: 5 Calendars (Work, personal, team, project, client)

  • OneCal: $10/month = $120/year
  • SYNCDATE: €1.99/month = €23.88/year (~$26/year at current rates)
  • Savings: ~$94/year

Scenario 3: 10 Calendars (Multiple teams, projects, shared calendars)

  • OneCal: $25/month = $300/year
  • SYNCDATE: €8.99/month = €107.88/year (~$118/year)
  • Savings: ~$182/year

Scenario 4: 15+ Calendars (Enterprise use)

  • OneCal: Custom pricing (reportedly $40—60+/month)
  • SYNCDATE: €8.99/month = €107.88/year
  • Savings: $400+/year

At every tier above 2 calendars, SYNCDATE costs 50—100% less.

Migrating from OneCal to SYNCDATE

The transition is simple and risk-free.

  1. Sign up for SYNCDATE (takes 90 seconds)
  2. Recreate your syncs in SYNCDATE (takes 2—3 minutes per sync pair)
  3. Verify everything works (run both tools in parallel for 1 day to confirm sync is happening)
  4. Cancel OneCal when you’re confident
  5. Events stay on your calendars — All the events OneCal synced remain. SYNCDATE picks up syncing going forward. No data loss.

The whole process takes less than 30 minutes. No data risk. No locked-in event history. You’re just switching the sync engine.

What OneCal Users Commonly Ask About

“Why does OneCal cost so much?”

OneCal’s pricing model is designed for premium positioning. They’re betting on willingness to pay. We’re betting on volume and simplicity. Different philosophies.

“Has OneCal raised prices before?”

Yes. OneCal has a history of price increases as the product matured. This is normal SaaS behavior, but it means your cost per calendar compounds over time. SYNCDATE pricing is locked at these rates (we’re committing to it publicly).

“The free tier doesn’t exist on OneCal. How am I supposed to test it?”

Exactly. You’re forced to pay before knowing if it works. That’s a bad deal for the customer. SYNCDATE’s free tier solves this.

“Is OneCal’s sync actually slow or is it just me?”

OneCal uses polling (checking every few minutes). 3--5 minute sync delays are intentional, not a bug. SYNCDATE uses webhook-driven sync for 4-second updates -- night-and-day different. You’ll notice immediately.

“Can I run OneCal and SYNCDATE at the same time?”

Technically yes, but you’ll get duplicate events. Not recommended. Pick one.

SYNCDATE vs OneCal Comparison
FeatureOneCalSYNCDATE
Free TierNoYes (2 calendars, forever)
Cheapest Paid Plan$5/month (2 calendars)€1.99/month (9 calendars)
Max Calendars (Paid)Unlimited at higher tiers30 (Pro)
Google CalendarYesYes
OutlookLimitedYes
Sync Speed3—5 minutes~4 seconds
Two-Way SyncYesYes
Privacy (“Busy”) by DefaultOptionalYes
Event Update SyncYesYes
Undo/Cleanup ToolsBasicDetailed
Hosting TransparencyNot disclosedEU (Hetzner, AES-256)
Setup Time5 minutes2 minutes

Comparison as of February 2026

When OneCal Might Be Better

If you need iCloud Calendar sync, OneCal may be the better choice since SYNCDATE does not support iCloud. For Google and Outlook calendars, SYNCDATE now fully supports both platforms with native API integrations.

For Google Calendar sync and Google + Outlook sync? SYNCDATE wins on speed, price, and transparency.

When SYNCDATE Is Better

You’re a Google Calendar or Outlook user. You want to stop overpaying. You want sync that happens in seconds, not minutes. You want a free tier to test properly. You want to know where your data is stored. You want to be able to leave without manual cleanup.

That’s SYNCDATE.

The Verdict

OneCal works, but it’s expensive and slow. If you have 2+ Google or Outlook calendars, SYNCDATE saves you money (often $60--400/year), gives you faster sync (45--60x faster), and doesn’t lock you into a no-free-tier model.

The migration takes 30 minutes. The savings start immediately.

For a step-by-step setup guide, see Google Calendar Sync: The Complete Guide. To understand how SYNCDATE's webhook-based sync achieves ~4-second speed, read How Calendar Sync Actually Works. For a head-to-head with Reclaim.ai, see our Reclaim.ai vs OneCal comparison.

FAQ

Is OneCal really that slow compared to SYNCDATE?

Yes. OneCal syncs every 3—5 minutes (polling). SYNCDATE syncs in ~4 seconds (webhooks). This is architectural, not a configuration. OneCal’s model is slower by design. You’ll notice the difference immediately if you switch.

Can I use OneCal and SYNCDATE together?

You technically can, but you’ll create duplicate events. Don’t do it. Pick one.

Is SYNCDATE’s free plan really forever?

Yes. Two calendars, forever free, no credit card required. No trial expiration. You can use it indefinitely.

How does the pricing compare if I add more calendars over time?

OneCal costs increase as you add calendars (they have per-calendar costs above certain tiers). SYNCDATE has fixed pricing — the same plan covers 9 or 30 calendars depending on tier. The more calendars you add, the bigger your SYNCDATE savings.

Does SYNCDATE support Outlook?

Yes. SYNCDATE fully supports Microsoft Outlook/Office 365 via the Microsoft Graph Calendar API. You can sync Google-to-Google, Outlook-to-Outlook, or Google-to-Outlook calendars.

Can I export my sync history from OneCal and import to SYNCDATE?

You don’t need to. All the events OneCal synced stay on your calendars. When you set up SYNCDATE, it picks up syncing going forward. No data migration needed.

OneCal Alternative: Faster, Cheaper Calendar Sync | SYNCDATE