Simplifythis vs Book With Zay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simplifythis
Manage and invoice clients directly from your mobile device. Track unbilled charges and create invoices instantly after providing services. View client details and manage charges efficiently.
- Client management
- Charge tracking
- Instant invoicing
- On-the-go management
- View client details
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Simplifythis is the complete business-management suite for small service businesses — your booking website, scheduling, classes, and card payments, together in one place. Made for physiotherapists, tutors, personal trainers, coaches, salons, and studios. YOUR OWN BOOKING WEBSITE • A beautiful, branded website with online booking built in — no web designer needed • Clients discover your services and classes and book in seconds • Your brand, your site — it looks like it was made just for you SMART SCHEDULING • Manage appointments across your whole team in clean day and week views • Recurring appointments, per-staff calendars, and fast rebooking • Automatic email and text reminders that cut no-shows GROUP CLASSES, MADE SIMPLE • Create classes and courses, and manage enrollment, capacity, and waitlists • One-tap close-out: mark attendance and charge the whole class together • Sell class packs and track prepaid credit automatically BILLING & CARD PAYMENTS • Send professional invoices and get paid by card, powered by Stripe • Auto-bill on a schedule and charge saved cards automatically • Track balances, packages, and credit for every client and household CLIENT SELF-SERVICE • Clients book, reschedule, and pay from their phone or your website • Secure card payments, instant receipts, and booking confirmations • Households share one account, so families and teams book and pay together ALL IN ONE PLACE • Complete client records, notes, and history • Staff roles and permissions for your whole team • A smart dashboard that surfaces exactly what needs you today Simplifythis gives small businesses what the big platforms promise — without the complexity. Set up in minutes and run your whole day from your pocket. Card payments are processed securely by Stripe. Questions? Email support@simplifythis.com.
Book With Zay
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Welcome to Book With Zay app, your go-to solution for hassle-free barber appointments! Discover a seamless booking experience that puts you in control. Explore a range of services, check prices and durations, and effortlessly navigate through the schedule. Find the perfect time slot that suits you, ensuring a personalized grooming experience tailored to your schedule. Whether it's a stylish haircut, a precise beard trim, or other grooming services, you'll find the right fit for your preferences. Curious about the location and opening times? It's all at your fingertips. This app provides comprehensive details about facilities, opening hours, and precise location, ensuring you're well-informed before your visit. Download now and experience the convenience of barber appointments. Book with ease, and groom with confidence!
Screenshots
Verdict
The clearest difference is iOS requirement: Book With Zay at 13.0 against Simplifythis's 16.4. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Simplifythis | Book With Zay |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 95 MB | 16 MB |
| Age rating | 4+ | 17+ |
| Developer | SimplifyThis | Tecwi Engineering GmbH |
In-app purchases
Simplifythis
No in-app purchases
Book With Zay
No in-app purchases









