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Simple Calendar VS SYNCDATE

Compare Simple Calendar VS SYNCDATE and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Simple Calendar logo Simple Calendar

A simple calendar with events (optional recurring and reminders), week numbers and a customizable...

SYNCDATE logo SYNCDATE

Two-way live Google Calendar sync across multiple accounts. Privacy by default, sync health monitoring, clean rollback. Free forever tier included.
  • Simple Calendar Landing page
    Landing page //
    2023-01-20
  • SYNCDATE
    Image date //
    2026-02-17
  • SYNCDATE Sign up with Google account
    Sign up with Google account //
    2026-02-17
  • SYNCDATE Connect more accounts
    Connect more accounts //
    2026-02-17
  • SYNCDATE Choose calendars to sync
    Choose calendars to sync //
    2026-02-17
  • SYNCDATE Choose mode: Two- or One-way
    Choose mode: Two- or One-way //
    2026-02-17
  • SYNCDATE Configure privacy: title, reminders, description, etc
    Configure privacy: title, reminders, description, etc //
    2026-02-17
  • SYNCDATE Review, save and forget. Events in your calendars are synced in seconds
    Review, save and forget. Events in your calendars are synced in seconds //
    2026-02-17
  • SYNCDATE View your active syncs, pause or delete at any time
    View your active syncs, pause or delete at any time //
    2026-02-17
  • SYNCDATE Monitor sync health, view logs, check & act on errors
    Monitor sync health, view logs, check & act on errors //
    2026-02-17

SYNCDATE is a web application for live two-way Google Calendar synchronization. Connect multiple Google accounts, select which calendars to sync, choose direction (one-way or two-way), and SYNCDATE keeps events aligned automatically in the background.

Key Features

  • Multi-account sync โ€” Connect multiple Google accounts and sync events between any of their calendars
  • One-way or two-way โ€” Flexible direction per sync process, including one-source-to-many-targets
  • Privacy by default โ€” Synced events show as "busy" by default; detailed copying is opt-in
  • Clean exit โ€” Delete a sync and optionally remove all events it created. Reversible and traceable
  • Fast webhook-driven sync โ€” Events propagate within seconds via Google push notifications, with 15-minute polling fallback
  • Recurring events โ€” Full support for recurring event sync with recurrence rules
  • Sync health dashboard โ€” Status, freshness, latency, error summaries, and actionable fix steps at a glance
  • Run history โ€” Per-run stats: created, updated, deleted, skipped, errors

Pricing

  • Free โ€” 2 calendars, 2 accounts, forever free
  • Starter โ€” $1.99/mo (4 accounts, 12 calendars in sync)
  • Pro โ€” $8.99/mo (8 accounts, 30 calendars, priority sync)

Built for professionals juggling multiple Google calendars across work, personal, and side-project accounts.

Outlook support with cross-provider sync - coming soon.

Simple Calendar

Website
simplemobiletools.com
Pricing URL
-
$ Details
Release Date
-
Edit details

SYNCDATE

Website
syncdate.app
Pricing URL
Official SYNCDATE Pricing
$ Details
freemium $1.99 / Monthly (Starter plan: 4 accounts, 12 calendars in sync)
Release Date
2026 February
Startup details
Country
Romania
State
Bucuresti
City
Bucuresti
Founder(s)
Vladyslav Duma
Employees
1 - 9
Edit details

Simple Calendar features and specs

  • Open Source
    Simple Calendar is open source, meaning the source code is publicly accessible. This transparency allows users to verify the security of the app and contribute to its development.
  • Privacy-Focused
    The app does not collect or share user data, which ensures a high level of privacy for users.
  • Ad-Free Experience
    Simple Calendar does not display ads, providing a cleaner and more user-friendly experience.
  • Offline Functionality
    The app can function fully offline, making it useful for users without consistent internet access.
  • Customizable
    Users can customize the look and feel of the calendar, including themes and colors, to suit their preferences.
  • Lightweight
    Simple Calendar is lightweight and does not consume significant device resources, ensuring smooth performance on a wide range of devices.
  • Integration with Other Simple Mobile Tools Apps
    It integrates well with other apps from Simple Mobile Tools, like Simple Contacts and Simple Notes, creating a more cohesive user experience.

Possible disadvantages of Simple Calendar

  • Limited Advanced Features
    Compared to some paid calendar apps, Simple Calendar lacks advanced features such as task management, event templates, and detailed recurring event options.
  • No Cloud Sync
    Simple Calendar does not offer built-in cloud synchronization across devices, which may be a drawback for users who want to access their calendar from multiple devices.
  • Lack of Integration with Popular Calendar Services
    The app does not offer seamless integration with popular calendar services like Google Calendar or Microsoft Outlook by default.
  • Learning Curve for Customization
    While the app is customizable, the process to set it up according to personal preferences can be confusing and time-consuming for some users.
  • Basic User Interface
    The user interface is simple and functional but may appear too basic and less aesthetically pleasing to users accustomed to more polished apps.

SYNCDATE features and specs

  • Sync Direction
    One-way or two-way
  • Supported Providers
    Google Calendar
  • Multi-Account
    Up to 8 accounts (plan-dependent)
  • Sync Speed
    ~4 seconds via webhooks
  • Privacy Mode
    Busy by default, detailed copying opt-in
  • Recurring Events
    Full recurrence rule support
  • Clean Exit
    Delete sync + optional event cleanup
  • Free Tier
    2 accounts, 2 calendars, forever free
  • Starter Plan
    $1.99/mo - 4 accounts, 12 calendars
  • Pro Plan
    $8.99/mo - 8 accounts, 30 calendars, priority sync

Analysis of Simple Calendar

Overall verdict

  • Yes, Simple Calendar by Simple Mobile Tools is generally considered a good app.

Why this product is good

  • Open Source: It is an open-source application, which means the code is available for anyone to inspect, providing more transparency and security.
  • Privacy-Focused: Simple Calendar doesn't require unnecessary permissions or internet access, ensuring user privacy.
  • No Ads: The app is ad-free, providing a cleaner user experience.
  • User-Friendly: Designed to be straightforward, it's easy to navigate and use.
  • Customizable: Offers various customization options such as themes and widgets.

Recommended for

  • Users who value privacy and want a calendar app without data tracking.
  • Individuals looking for an ad-free scheduling experience.
  • Those who prefer customizable features to tailor the app to their liking.
  • Open-source enthusiasts who support community-driven projects.

Analysis of SYNCDATE

Overall verdict

  • SYNCDATE appears to be a useful scheduling and calendar coordination tool for those who need to align availability across multiple people or time zones, though prospective users should verify current features and reliability directly on syncdate.app before committing.

Why this product is good

  • Simplifies coordinating meeting times across different schedules and time zones
  • Aims to reduce the back-and-forth of finding mutually available slots
  • Likely integrates with common calendar platforms for streamlined scheduling
  • Focuses on a clean, purpose-built experience for date and time synchronization

Recommended for

  • Remote teams collaborating across multiple time zones
  • Freelancers and consultants who schedule frequent client meetings
  • Small businesses looking to streamline appointment booking
  • Individuals coordinating events or dates with groups of people

Simple Calendar videos

+ Add

Simple Calendar Android App Review (Widget)

More videos:

  • Review - Simple Calendar Pro Promo Video

SYNCDATE videos

No SYNCDATE videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Simple Calendar and SYNCDATE)

Simple Calendar

SYNCDATE

Calendar
98 98%
Calendar
2% 2
Productivity
0 0%
Productivity
100% 100
Appointments and Scheduling
100 100%
Appointments and Scheduling
0% 0
Calendar And Scheduling
92 92%
Calendar And Scheduling
8% 8

Questions & Answers

As answered by people managing Simple Calendar and SYNCDATE.

What makes your product unique?

SYNCDATE's answer:

SYNCDATE treats sync as silent infrastructure โ€” it shows proof instead of making promises. Every sync run is logged with stats, every error comes with a deterministic fix step, and every sync can be cleanly reversed with optional event cleanup. Most calendar sync tools are black boxes. SYNCDATE exposes sync health, freshness, and latency so you can verify it's working in seconds, not just hope it is.

Why should a person choose your product over its competitors?

SYNCDATE's answer:

A generous free-forever tier (2 accounts, 2 calendars) covers the most common use case at zero cost โ€” competitors start at $4โ€“12/mo. Privacy is the default: synced events show as "busy" unless you opt in to detailed copying. And if you ever want to stop, the Clean Exit flow removes all SYNCDATE-created events from your calendars โ€” no orphaned copies left behind.

How would you describe the primary audience of your product?

SYNCDATE's answer:

  • Professionals managing multiple Google calendars across work, personal, and side-project accounts.
  • Remote workers who need their personal calendar to block time on their work calendar.
  • Freelancers and consultants juggling 3+ client calendars who need availability to stay consistent without manual copying.

What's the story behind your product?

SYNCDATE's answer:

SYNCDATE was born from a real problem: juggling multiple Google accounts and constantly getting double-booked because calendars didn't talk to each other. Existing tools were either expensive for what they offered, opaque about what they were doing, or left orphaned events behind when you stopped using them. SYNCDATE was built to be the sync tool we wanted โ€” minimal, transparent, and safe to turn off.

Which are the primary technologies used for building your product?

SYNCDATE's answer:

Next.js (App Router) with TypeScript, PostgreSQL via Drizzle ORM, Redis with BullMQ for background job processing, Google Calendar API with webhook push notifications, and Stripe for billing. Deployed on a Hetzner server behind Cloudflare with a standalone Node.js worker for sync execution. Observability stack uses Grafana, Loki, Prometheus with PagerDuty for alerts.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Simple Calendar and SYNCDATE

Simple Calendar Reviews

The best third-party file managers for Android
Keep it simple with Simple File Manager Pro. Like Solid Explorer, the app is designed within the Material Design schematic, including using one floating action button to add a new file or folder. Simple File Manager Pro only works with localized files, however, and though it doesn't offer access to exterior cloud accounts, you can navigate root files, SD cards, and USB files...
Source: www.androidpolice.com
The 13 best calendar apps for Android and iOS help you organize a chaotic day
Simple might be as simple does, but that doesnโ€™t always have to be an insult. In the case of Simple Calendar, it wears its simplicity on its sleeve, proud for the world to see it in all its glory. Simple Calendar is exactly that โ€” a simple way for you to see all of your upcoming appointments, meetings, or tasks on a simple calendar interface. Where Simple Calendar differs...
Source: www.digitaltrends.com

SYNCDATE Reviews

We have no reviews of SYNCDATE yet.
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Social recommendations and mentions

Based on our record, Simple Calendar seems to be more popular. It has been mentiond 100 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Simple Calendar mentions (100)

View more

SYNCDATE mentions (0)

We have not tracked any mentions of SYNCDATE yet. Tracking of SYNCDATE recommendations started around Feb 2026.

What are some alternatives?

When comparing Simple Calendar and SYNCDATE, you can also consider the following products

Google Calendar - Spend less time managing your day & more time enjoying it

OneCal.io - Sync Outlook and Google Calendars in real-time, share booking links, and view all your calendars in one view.

Morgen.so - All-in-one Calendar, Tasks & Scheduler. Morgen is the single hub for everything that revolves around time management.

Calensync - Synchronize your Google, Outlook, and iCalendars instantly, and create scheduling links to easily book events based on your availability

Calendar Lock PEA - Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM. Platform-independent, Open Source, no installation or registration required.

ChronoLink - Flexibly synchronize events between different calendars. Select and transform events according to your rules. Supports Google, Microsoft (Outlook.com / Exchange Online), Exchange Server, iCalendar/ICS and other systems.

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