Pion vs Appointment Booking System
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pion
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Logiciel de saisie de dégustations des vins avec synchronisation et administration d'une base centrale. - Descriptif - Photo - Avis - Note - ...
Appointment Booking System
Quickly create a customer booking website in minutes. Customers can view available slots and book appointments online. Receive instant notifications for new bookings.
- Quick setup
- Customer booking website
- Real-time notifications
- Unlimited bookings (subscription)
- Free tier available
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Using this app you can quickly set up a booking system to accept bookings from your customers by answering a few questions. It takes only a few minutes. Afterward, you will have a link to a website that you can send to your customers. On that website they can see where you have free appointment slots and can book them. When one of your customers books an appointment, you will immediately receive a notification, and you can optionally also receive an email. You can use this app for free for booking up to 20 hours per month. If you would like to have an unlimited number of bookings each month, you can subscribe: Monthly subscription: With this subscription you can use the app for an unlimited number of bookings each month. $1.99 for each of the first 2 months, then $9.99/month. The subscription will automatically renew until you cancel it. You can manage your subscriptions in the App Store app. You can find the Terms of Use here: https://www.calengoo.com/bookingsystem/impressum.html
Screenshots
Verdict
The clearest difference is in-app purchases: Pion at none against Appointment Booking System's 2. Appointment Booking System's advantage is update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement 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
Both are free to download. Appointment Booking System sells 2 in-app purchases, starting at $9.99 per month. Pion asks for nothing beyond the download.
Pion ships an update every 3 months, Appointment Booking System monthly. The most recent releases landed on January 2, 2026 and October 27, 2026 respectively.
| Parameter | Pion | Appointment Booking System |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (22 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 22 — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 8 MB | 71 MB |
| Age rating | 17+ | 4+ |
| Developer | ESTEL | Dominique Andr Gunia |
In-app purchases
Pion
No in-app purchases
Appointment Booking System
- Monthly subscription1 Month trial$9.991 Month
- Yearly subscription2 Months trial$99.991 Year
Questions
Is Pion free?
Is Appointment Booking System free?
Do Pion or Appointment Booking System have ads?
Which is updated more often, Pion or Appointment Booking System?
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