Comparison

The Simple Scheduler vs Corterra Book

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

The Simple Scheduler

This app simplifies business management through intuitive online scheduling. It offers drag-and-drop features for employee schedules, customer invoices, and client appointments, with automated custom reports to streamline operations.

Highlights
  • Drag-and-drop scheduling
  • Employee scheduling
  • Customer invoices
  • Client appointment management
  • Custom reports
  • Automated scheduling tools
Read full description

Simple Scheduler is an online scheduling software and mobile app with drag-and-drop features to make scheduling easier. Whether for employee scheduling, customer invoices, or client appointments, you can easily manage your entire business. With our custom reports, Simple Scheduler provides automated tools to make scheduling easier.

About

Corterra Book

Easily book appointments at your favorite spas, salons, studios, or clinics. View real-time availability, select services and providers, and manage all your bookings in one place without needing to make a phone call.

Highlights
  • Real-time availability browsing
  • Service and provider selection
  • Instant booking confirmation
  • Appointment management
  • Online intake forms
  • Promo code application
Features
Read full description

Booking shouldn't require a phone call. Corterra Book is the appointment app for the spa, salon, studio, or clinic you already visit. See live availability, book in a few taps, and keep every appointment in one place. WHAT YOU CAN DO • Browse real-time openings and pick the time that works for you • Choose your service and your provider before you book • Book in seconds — no phone calls, no email back-and-forth • Get instant confirmation for every booking • See upcoming and past appointments at a glance • Cancel an appointment from your bookings list • Apply a promo code when you book • Check your membership status and package balances • Complete and sign intake forms right in the app • Update your profile and contact details anytime HOW IT WORKS 1. Pick the service you want 2. Choose a provider and an open time 3. Confirm — your appointment is booked PRIVACY YOU CAN TRUST Your account is protected by industry-standard encryption. We never sell your personal information or share it with anyone outside the business you are booking with. You can delete your account and your data at any time from the Account tab. SUPPORT Need help? Visit corterrabook.com/support or email support@corterrabook.com. By using this app, you agree to our Terms of Service (corterrabook.com/legal/tos) and Privacy Policy (corterrabook.com/legal/privacy).

Screenshots

The Simple Scheduler4 screens
Corterra Book4 screens

Verdict

The call

The clearest difference is rating: Corterra Book at 5.0 against The Simple Scheduler's 1.0. Corterra Book also leads on update cadence (every 8 days vs every 6 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Corterra Book holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

The Simple Scheduler ships an update every 6 months, Corterra Book every 8 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
The Simple Scheduler versus Corterra Book: the parameters behind the verdict, then further details
ParameterThe Simple SchedulerCorterra Book
PriceFreeFree
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyEvery 6 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.0 — better15.6
Further details — not scored
Size27 MB33 MB
Age rating17+4+
DeveloperSimple Scheduler, LLCStem Creations

Customer experience

The Simple Scheduler

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Corterra Book

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

The Simple Scheduler

No in-app purchases

None

Corterra Book

No in-app purchases

Questions

Is The Simple Scheduler free?
The Simple Scheduler is free to download, with no in-app purchases.
Is Corterra Book free?
Corterra Book is free to download, with no in-app purchases.
Which has better reviews, The Simple Scheduler or Corterra Book?
Corterra Book is rated higher. The Simple Scheduler averages 1.0 out of 5 from 1 ratings, while Corterra Book averages 5.0 from 1 ratings.
Do The Simple Scheduler or Corterra Book have ads?
Neither The Simple Scheduler nor Corterra Book shows ads.
Which is updated more often, The Simple Scheduler or Corterra Book?
The Simple Scheduler ships an update every 6 months, and Corterra Book every 8 days. Most recently, The Simple Scheduler was updated on November 3, 2026 and Corterra Book on November 5, 2026.

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