Altegio for Solo Practitioners in Spain: Online Booking, WhatsApp Reminders, Auto-Invoicing

If you're an autónomo in Spain — beauty therapist, masseuse, hairdresser, psychologist, personal trainer — and you're still booking clients through WhatsApp and a paper diary, you're losing an hour a day on chat replies and 20–25% of revenue to people who "forgot to come." This article walks through a typical scenario for a solo practitioner in a large city: how Altegio fixes both problems in five working days without developers, and why it beats Calendly or Google Forms for service businesses.

About this format. Below is a typical scenario for a solo practitioner in a large city. It is not a report on a specific client — it's a pattern: which stack we set up, which tasks we close, which effect ranges we typically see on similar projects. We publish one named case with the client's written permission — see Cases on the homepage. Figures are characteristic ranges, not a guarantee for any specific client.

Why WhatsApp booking doesn't scale

When you have 30 clients a month, WhatsApp chat works. At 100 — mistakes start: double bookings on the same slot, missed confirmations, date confusion. You're replying at 1 a.m. because "they're waiting." Then the client doesn't show — and that slot is empty, revenue zeroed out.

Meanwhile: a new client messages you at night "when can I book?" — you reply in the morning, they've already booked with someone else. Our measurements show autónomos in beauty and wellness lose 18–35% of potential bookings simply because there's no 24/7 online booking.

What Altegio is and why it fits autónomos in Spain

Altegio is a vertical-specific CRM for beauty, medical, fitness and service businesses. It runs a fully GDPR-compliant European instance (altegio.com). Interface in Spanish and English.

What matters for an autónomo: Altegio doesn't just cover bookings — it handles the operational layer too. Payroll (if you have assistants), supply tracking, service accounting for filing with Hacienda (the Spanish tax authority). One tool instead of three.

Alternatives in the Spanish market — Booksy, Treatwell, Fresha. They have their upsides (they act as client aggregators), but they take a commission per booking and tie clients to the platform, not to you. Altegio is your CRM and your clients, no middleman.

Typical scenario: a solo beauty practitioner in a large city

Typical starting point: solo practitioner, 2–4 rooms, 80–150 clients/month. Booking through WhatsApp, calendar in Google Calendar, payment in cash or Bizum after the session. Common problems: 18–25% no-shows, an hour a day on chat replies, regular double bookings.

What typically gets done in a week:

• An Altegio account is created on the European instance, the client base is imported (typically 200–500 clients) from the phone's address book
• A branded online booking widget is configured: colours, services, durations, prices — embedded on the personal website and in the Instagram bio link
• Two-way sync between Altegio and Google Calendar is set up — personal commitments show up as blocked slots
• WhatsApp Business is connected for automatic reminders — 24h and 2h before the appointment
• A mandatory €10–15 deposit for new clients via Stripe is enabled — charged at booking and automatically applied to the final invoice
• Automatic delivery of the simplified invoice (factura simplificada) after payment is set up — ready for Hacienda filing without manual work

Typical results in the first 1–2 months

• No-shows — typically from 18–25% to 4–8% (deposit + reminders work together)
• 24/7 booking via the widget — typically 25–40% of new bookings come in at night or weekends, when previously the client would message and not get a reply
• Time spent on admin — typically from 40–60 minutes/day to 10–15 minutes
• Average room utilisation — typically up 10–20% because cancelled slots automatically return to the public widget and get filled by other clients

Numbers are ranges from projects in our niche, not a promise to any specific client.

Pricing and fit

Altegio's own pricing — from €25/month per solo practitioner, €60–90/month for a salon with 3–5 chairs (check altegio.com for current rates). Stripe deposits — standard fee of 1.5% + €0.25 per transaction. Turnkey Altegio setup in Barcelona at OPERIX — from €750 for 5 working days, including training and widget embedding on your website or Instagram.

Fits: beauty therapy, massage, hairdressing, psychologists, trainers, nutritionists, osteopaths, tattoo artists — any "booking required" service with at least 50 clients/month.

Doesn't fit: salons that depend on volume bookings through aggregators (Treatwell, Booksy) — the model there is different, you need paid platform traffic, not your own CRM.