Appointment Booking Cowlendar vs RentBase: Rental Bookings
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026 for Appointment Booking Cowlendar, Oct 13, 2026 for RentBase.
The short answer
- On the Shopify App Store: Appointment Booking Cowlendar 4.9 from 2,261 reviews and RentBase 3.0 from 1 reviews.
- Both list a free plan. Paid plans start at $13.99/month for Appointment Booking Cowlendar and $29/month for RentBase.
- Appointment Booking Cowlendar lists 20 features RentBase’s listing doesn’t mention, including Branding, Courses, Custom.
Head to head
Bookings & appointments | Schedule | Zoom | Meet | Calendar
- United States
- United Kingdom
- Canada
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · 5 bookings/mo, great to test the waters
- · Unlimited features
Starter
- · 1-1 booking • group booking • multiday
- · ALL FEATURES, INCLUDING :
- · Booking limit per timeslot / per day
- · Custom duration / Deposit / Prepayment
- · Full day booking • bundle • subscription
- · Google/Outlook/Zoom/Teams
Basic
- · 1 to1 booking • group booking • multiday
- · ALL FEATURES, INCLUDING :
- · Booking limit per timeslot / per day
- · Custom duration / Deposit / Prepayment
- · Full day booking • bundle • subscription
- · Google/Outlook/Zoom/Teams
Growth
- · 1-1 booking • group booking • multiday
- · ALL FEATURES, INCLUDING :
- · Booking limit per timeslot / per day
- · Custom duration / Deposit / Prepayment
- · Full day booking • bundle • subscription
- · Google/Outlook/Zoom/Teams
Free
- · Fleet and Asset Management
- · Seasonal and Duration Discount
- · Security Deposit Management
- · Unlimited rental products
- · Up to 10 confirmed bookings/month
RentBase Pro
- · Automated Email Notifications
- · Calendar Sync (Google/Apple/Outlook)
- · Dynamic Contracts and E-Signature
- · Fleet and Asset Management
- · Seasonal and Duration Discount
- · Security Deposit Management
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureThis booking app adds a native scheduling popup on any service/product you sell on Shopify. Our booking app requires zero technical knowledge. Transform a product into a bookable service in 3 min. Works like Calendly, but integrated into Shopify. One time or subscription bookings. Use an address or a digital location (zoom, google meet link, outlook) for your bookings. Addquestions to the form to gather info.
Turn your store into a rental business with RentBase. Offer product and equipment rentals with a booking calendar that lets customers choose start and end dates before checkout. Manage availability, pricing, and reservations from one dashboard. Configure blocked dates, buffers, rental durations, discounts, quantities, and product-specific rules.
- Replace the "add to cart" button for a "book now" button on any product page
- Setup in-person meeting or virtual bookings through Zoom or Google Meet
- Email notifications & Reminders for appointments and bookings. Booking app.
- Group booking: you can allow multiple customers to book the same timeslot.
- Daily and hourly booking calendar for rental products
- Real-time availability with blocked dates and buffer hours
- Booking dashboard for pickups, returns, and active rentals
- Track rental assets with serial numbers and maintenance status
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Appointment Booking Cowlendar |  RentBase |
|---|---|---|
| Detected stores | 5,467 | Not published |
| Net store change, 28 days | −5 | 0 |
| Stores added, 28 days | 112 | Not enough data |
| Big-brand share | 8% | Not enough data |
| Top store categories | Apparel & Accessories, Services, Home & Garden | Not published |
| Top store countries | United States, United Kingdom, Canada | Not published |
Reviews
| Measure | Appointment Booking Cowlendar | RentBase |
|---|---|---|
| App Store rating | 4.9 ★(ahead) | 3.0 ★ |
| App Store reviews | 2,261(ahead) | 1 |
| New reviews, 28 days | 17 | Not enough data |
| Reviewers a year or more in | 11% | Not enough data |
Pricing
| Measure | Appointment Booking Cowlendar | RentBase |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $13.99/month(ahead) | $29/month |
| Longest free trial | 7 days | 14 days |
| Plans listed | 4 | 2 |
Listing
| Measure | Appointment Booking Cowlendar | RentBase |
|---|---|---|
| Shopify category rank | #3(ahead) | #57 |
| Shopify App Charts | #1 in Event booking | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Jan 21, 2022 | May 8, 2026 |
| Languages | 6 | 6 |
| Developer | Booking Appointment Cowlendar | PixelTrust Solutions |
FAQ
Appointment Booking Cowlendar and RentBase: common questions
- Is Appointment Booking Cowlendar or RentBase cheaper?
- Both list a free plan. Paid plans start at $13.99/month for Appointment Booking Cowlendar and $29/month for RentBase. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, Appointment Booking Cowlendar or RentBase?
- On the Shopify App Store: Appointment Booking Cowlendar 4.9 from 2,261 reviews and RentBase 3.0 from 1 reviews.
- What features does each app list that the other doesn’t?
- Appointment Booking Cowlendar lists 20 the others don’t mention, such as Branding, Courses, Custom, Custom forms. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 9, 2026 for Appointment Booking Cowlendar, Oct 13, 2026 for RentBase; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 9, 2026 for Appointment Booking Cowlendar, Oct 13, 2026 for RentBase. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.