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Head-to-Head Comparison·Updated February 2026

Calendly vs OASES Online

Choosing between Calendly and OASES Online for your tutoring business? This 2026 comparison breaks down features, pricing, and real user experiences to help you decide.

Calendly logo

Calendly

VS
OASES Online logo

OASES Online

Independent comparison based on features, pricing, and user reviews

Quick Answer

Calendly vs OASES Online in 2026

Calendly and OASES Online are both tutoring management platforms with different strengths. Calendly excels at best-in-class appointment booking — eliminates scheduling back-and-forth, while OASES Online is stronger for comprehensive all-in-one platform with 75+ reports. Your choice depends on whether you prioritize scheduling flexibility, billing integration, or specific features for your tutoring business.

Based on feature comparison, pricing data, and verified user reviews

Amy Ashford, Tutoring Software Specialist
Tutoring Software Specialist

Overview of Calendly and OASES Online

Calendly logo

What is Calendly?

Cloud-based scheduling automation software that eliminates back-and-forth booking emails. Founded in 2013, valued at $3 billion, used by millions. Excellent at appointment scheduling — but not designed for tutoring business operations.

OASES Online logo

What is OASES Online?

Premier online management software for tutoring, after-school, or any session-based service providers. Provides a centralized CRM interface for scheduling, billing, testing, and progress tracking.

TLDR (summary)

Calendly and OASES Online are both tutoring management platforms. Calendly is known for best-in-class appointment booking — eliminates scheduling back-and-forth, while OASES Online excels at comprehensive all-in-one platform with 75+ reports.

Calendly vs OASES Online: Feature comparison

Compare features across key categories. Toggle 'Compare with Tutorbase' to see how a third option stacks up.

Full support
Partial
Not available
Feature
Calendly logo
Calendly
OASES Online logo
OASES Online
Drag & Drop Calendar
Partial
Partial
Recurring Lessons
Partial
Yes
Room Management
No
Yes
Teacher Availability
Yes
Yes
Group Lessons
Partial
Yes
Lesson Reminders
Yes
Yes
Attendance Reports
No
Yes
Automated Invoicing
No
Yes
Package Billing
No
Yes
Payment Tracking
Partial
Yes
Cancellation Fees
No
Unknown
Financial Reports
No
Yes
|

Comparison based on publicly available information and verified product documentation. Last updated January 2026.

Strengths & Weaknesses

An honest look at what each platform does well.

Where Calendly excels

Calendly has built its reputation on these core strengths.

Best-in-class appointment booking — eliminates scheduling back-and-forth
150+ integrations including Zoom, Google Meet, and major CRMs
Free tier gets solo tutors started with basic scheduling
Automated reminders reduce no-shows
Round-robin scheduling distributes bookings across team members (Teams tier)

Where OASES Online excels

OASES Online stands out in these key areas.

Comprehensive all-in-one platform with 75+ reports
Built-in SAT/ACT testing with automatic learning plan generation
Intelligent tutor-student matching algorithm
Strong billing flexibility including contract/grant billing for schools
Excellent customer support praised in reviews

Where Each Falls Short

Common challenges users report with each platform.

Calendly limitations

Areas where Calendly users report challenges.

Not tutoring software — only solves scheduling, nothing else
No invoicing system — cannot bill after lessons or send monthly invoices
No package billing — cannot sell lesson bundles or track remaining sessions
No attendance tracking — cannot connect who showed up to what they owe
No student profiles — no academic records, progress notes, or learning history

OASES Online limitations

Areas where OASES Online users report challenges.

Dated, clunky interface that hasn't modernized since 2003
No WhatsApp integration for parent communication
Steep learning curve requiring significant training time
No modern drag-and-drop calendar rescheduling
No visual Kanban-style lead pipeline

Pricing Comparison

Compare Calendly and OASES Online pricing plans.

Calendly logo

Calendly

Free
$0/monthly
  • 1 active event type
  • 1 calendar connection
  • Automated email notifications
  • Unlimited 1-on-1 meetings
  • Only 1 event type active at a time
  • Calendly branding
Standard
$10/user/month (annual) or $12/month (monthly)/monthly
  • Unlimited event types
  • Up to 2 calendars per user
  • Group events and collective events
  • Stripe and PayPal payment collection
  • Per-user pricing scales with team
  • Upfront payment only (no recurring billing)
Teams
$16/user/month (annual) or $20/month (monthly)/monthly
  • All Standard features
  • Round-robin scheduling
  • Salesforce integration
  • Team-wide reporting
  • Still no billing, invoicing, attendance, or payroll
OASES Online logo

OASES Online

Starter
$99/month/monthly
  • Up to 25 active students
  • Unlimited staff logins
  • Unlimited tutor logins
  • Scheduling & billing
  • 25 active students
Basic
$199/month/monthly
  • Up to 60 active students
  • All Starter features
  • 60 active students
Standard
$299/month/monthly
  • Up to 100 active students
  • QuickBooks integration
  • 100 active students

Pricing information verified 2026-02-25. Always confirm current pricing directly with each provider.

What to consider when choosing between Calendly and OASES Online

Both platforms have strengths, but there are some common challenges tutoring businesses face when choosing between these two options.

Both have limited drag & drop calendar capabilities

Common feedback from users evaluating both platforms

Lead Pipeline is limited or unavailable in both

Common feedback from users evaluating both platforms

Neither offers whatsapp integration

Common feedback from users evaluating both platforms

Neither offers flat pricing that stays affordable as you scale

Common feedback from users evaluating both platforms

The question to ask: If you need capabilities that span both Calendly's strengths and OASES Online's strengths, is there an option that bridges both?

A third option to consider

Some businesses have found another approach

When comparing Calendly and OASES Online, some tutoring businesses have also explored Tutorbase as an alternative that takes a different approach.

Tutorbase logo

Why some businesses chose Tutorbase instead

Neither Calendly nor OASES Online fully addresses the challenge of both have limited drag & drop calendar capabilities. Many tutoring businesses find themselves needing capabilities that sit between what these two solutions offer.

Tutorbase was built specifically for tutoring businesses that need both powerful scheduling and integrated billing in one platform. Instead of choosing between feature sets, Tutorbase combines the strengths of traditional tutoring software with modern CRM and communication tools.

How Tutorbase approaches things differently:

  • Built-in CRM with visual lead pipeline
  • Native WhatsApp integration for client communication
  • Modern drag-and-drop scheduling interface
  • Automatic lesson-to-invoice billing flow

Simple, transparent pricing

Free to use. 1% fee only when you invoice through Tutorbase.

$0/month
+ 1% on invoices

No monthly subscription. No per-student fees. No hidden charges. If you invoice nothing, you pay nothing.

No pressure — just another option to evaluate in your research.

Explore all Tutorbase features

Many tutoring businesses explore all their options before deciding — there's no rush

The Verdict

OASES Online wins in more feature categories, but Calendly may be better for specific use cases.

Calendly logo
0
wins
6
ties
OASES Online logo
17
wins
Calendly logo

Choose Calendly if

  • You prioritize best-in-class appointment booking — eliminates scheduling back-and-forth
  • You prioritize 150+ integrations including zoom, google meet, and major crms
  • You prioritize free tier gets solo tutors started with basic scheduling
OASES Online logo

Choose OASES Online if

More feature wins
  • You prioritize comprehensive all-in-one platform with 75+ reports
  • You prioritize built-in sat/act testing with automatic learning plan generation
  • You prioritize intelligent tutor-student matching algorithm
Or consider
Tutorbase logo

Tutorbase

A third option to explore

Consider Tutorbase if:

You need both scheduling flexibility AND integrated billing
You want a visual CRM with lead pipeline tracking
You plan to scale and want predictable, flat pricing
You need native WhatsApp integration for client communication

Frequently asked questions

Common questions about choosing between Calendly and OASES Online for your tutoring business.

OASES Online wins more feature categories in our comparison. Calendly excels at best-in-class appointment booking — eliminates scheduling back-and-forth, while OASES Online is stronger for comprehensive all-in-one platform with 75+ reports. Choose based on your priorities.

Still have questions about Calendly vs OASES Online? Contact Us

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Data Sources & Verification

Transparency matters. Here's where our data comes from:

Last Updated

February 25, 2026

Pricing

Calendly

OASES Online(verified February 25, 2026)

Migration Data

Based on actual customer migrations from Calendly & OASES Online to Tutorbase

Found outdated info? We strive to keep our competitor data current. Email us at contact@tutorbase.com and we'll verify and update within 48 hours.

Calendly vs OASES Online (2026): Detailed Comparison for Tutoring Businesses | Tutorbase