SyncThemCalendars vs Hetk: Pricing and Features (2026)

Hetk vs SyncThemCalendars: at a glance

	Hetk	SyncThemCalendars
Pricing	$15–50/year	$47.88–215.88/year
Google Calendar	Yes	Yes
Microsoft Outlook	Yes	Yes
Apple iCloud	Yes	Yes
One-way sync	Yes	Yes
Bi-directional sync	Yes	Yes
Privacy controls	Replace the details with “Busy”, Flag the copy as private, title templates	Privacy controls, detail hiding
Event filtering	Skip rules: all-day, free, answered “Maybe”, title phrase, color	By color
Real-time sync	Google and Outlook: yes (push). iCloud: checked every 5 minutes, less often if quiet	Yes
Calendar limit	Unlimited	Unlimited accounts
Sync pair limit	3–8 (by plan)	5–36 (by plan)
Free trial	21 days	14 days

Where Hetk wins

Price

Hetk Personal ($15/year) is 69% below SyncThemCalendars Basic ($47.88/year). Hetk Professional ($50/year, up to 8 sync pairs) is 48% below SyncThemCalendars Premium ($95.88/year, up to 16 sync relationships).

Lower entry price

Hetk Personal is $15/year; SyncThemCalendars’ cheapest plan, Basic, is $47.88/year. Both cover Google, Outlook, and Apple calendars, so at the low end you’re paying 69% less for the same provider coverage.

Longer free trial

21 days vs 14 days.

Where SyncThemCalendars wins

More sync relationships at the top tier

SyncThemCalendars’ Professional plan supports up to 36 sync relationships; Hetk’s Professional plan includes 8 sync pairs, and on annual billing you can add more at $6.25/year each, up to 50 in total. If you need many distinct sync relationships and don’t want to buy add-ons, SyncThemCalendars’ higher included caps go further. (Both services support unlimited connected accounts and calendars.)

Established track record

SyncThemCalendars has been operating since 2019 with Capterra ratings of 4.9/5. Hetk is newer to market.

Detailed pricing breakdown

Hetk pricing

Personal: $15/year (early adopter: $10/year), unlimited calendars, up to 3 sync pairs
Professional: $50/year (early adopter: $35/year), unlimited calendars, up to 8 sync pairs
Cost per additional calendar: $0 (unlimited included)

SyncThemCalendars pricing

Basic: $47.88/year ($3.99/month billed yearly, $4.99 billed monthly), up to 5 sync relationships
Premium: $95.88/year ($7.99/month billed yearly, $9.99 billed monthly), up to 16 sync relationships
Professional: $215.88/year ($17.99/month billed yearly, $19.99 billed monthly), up to 36 sync relationships

Real-world cost scenarios:

3 calendars, 2 sync pairs: Hetk $15/year (Personal), SyncThemCalendars $47.88/year (Basic)
5 calendars, 8 sync pairs: Hetk $50/year (Professional), SyncThemCalendars $95.88/year (Premium, which is needed once you exceed Basic’s 5 sync relationships)

Hetk Professional covers up to 8 sync pairs across unlimited connected calendars. If you need more than 8 sync relationships, SyncThemCalendars’ higher-tier pair caps (16 or 36) may suit you better.

SyncThemCalendars pricing, plan limits and trial checked 2 October 2026 on SyncThemCalendars' pricing page. Plans may have changed since.

Feature-by-feature analysis

Both platforms handle multi-provider calendar synchronization with automatic sync. The key difference lies in how they meter pricing and what features come standard.

Both services support unlimited connected accounts and calendars across Google, Outlook, and Apple iCloud; both meter on sync relationships. The difference is where the caps fall: Hetk’s plans allow 3 (Personal) or 8 (Professional) sync pairs, while SyncThemCalendars’ tiers allow 5, 16, or 36. If you need only a handful of sync relationships, Hetk is cheaper; if you need many at once, SyncThemCalendars’ higher pair caps may offer more headroom.

Both let you choose which events sync. SyncThemCalendars filters by color. Hetk uses “skip” rules on each sync: a rule can match all-day events, events that show you as free, invitations you answered “Maybe” to, a word or phrase in the title, or a color (a color you gave a Google Calendar event, or an Outlook category; iCloud events have no color to match). The week preview redraws as you change a rule, so you see what will sync before you save.

Both platforms offer privacy controls, though Hetk’s are broader (Replace the details with “Busy”, Flag the copy as private, title templates) and included at every tier. SyncThemCalendars’ privacy features are present but less granular. If you’re syncing sensitive information across accounts, Hetk’s controls give you finer-grained protection.

Hetk’s longer free trial (21 days vs. 14 days) also gives you more time to evaluate whether it fits your workflow before committing to a paid plan.

Switching to Hetk

If you’re using SyncThemCalendars and want to evaluate Hetk:

Start Hetk’s 21-day free trial and connect your calendar accounts
Create the same sync relationships in Hetk as you have in SyncThemCalendars
Test for a week to ensure your privacy settings work as expected
Review the sync logs to confirm events are syncing
If satisfied, disable SyncThemCalendars: Your calendar events stay in place; only the sync service changes
No migration needed: Hetk syncs directly to your existing accounts

SyncThemCalendars syncs are non-destructive; your calendar events exist independently. Switching means simply enabling Hetk’s sync and disabling SyncThemCalendars’ without risking any data.

FAQ

Does Hetk filter events by color like SyncThemCalendars?

Yes. A Hetk filter rule can skip events of one color: a color you gave a Google Calendar event, or an Outlook category. iCloud events have no color, so a color rule never matches them. Rules can also skip all-day events, events that show you as free, invitations you answered “Maybe” to, or events whose title contains a word or phrase. Filters are included in both plans.

What if I need more than 8 sync pairs?

Hetk supports unlimited calendars on both plans. The Professional plan includes 8 sync pairs. On annual billing you can add more from the billing page at $6.25/year each, up to 50 sync pairs in total. Contact support if you need more than that.

How much do sync pair limits matter?

If you have 5 calendars and want them all synced to each other, that’s 10 sync pairs. Hetk’s Personal plan ($15) supports 3 sync pairs; Professional ($50) supports 8. If you need many sync pairs, compare against SyncThemCalendars’ tiers, but remember Hetk lets you add calendars freely within those pair limits.

Is SyncThemCalendars’ 4.9/5 Capterra rating better than Hetk’s?

SyncThemCalendars has been in the market longer, so it has more reviews. Hetk is newer (launched 2025) but has fast push sync for Google and Outlook and privacy controls. Hetk is cheaper and newer, while SyncThemCalendars has a longer track record.

Can I run both platforms simultaneously?

Not recommended. Running two sync services on the same calendars creates duplicate events and conflicts. Choose one per sync relationship.

Does color filtering matter for personal use?

For individuals managing a personal and work calendar, probably not. You’d typically sync entire calendars anyway. Color filtering is more useful for teams managing shared calendars or people with highly fragmented calendar structures. For personal use, skipping all-day events or events with a word like “Lunch” in the title is often the more useful rule.