AEAT vs AvaiBook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AEAT
This app allows users to manage tax-related tasks and receive personalized notifications from the tax agency. It offers secure digital identity management and access to various services like appointment booking, debt payments, and document signing.
- Digital identity management
- Tax return services
- Appointment booking
- Debt payment and consultation
- Document signing and viewing
- Virtual assistance tools
- Personalized notifications
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La Agencia Tributaria pone a disposición de los ciudadanos de forma gratuita una aplicación para dispositivos móviles inteligentes (smartphones y tabletas) que ofrece la posibilidad de efectuar gestiones y recibir avisos personales y de novedades fácilmente, con seguridad y sin desplazarte. Se ofrece una gestión de identidad digital basada en el número de Referencia, Cl@ve o certificado electrónico. Las gestiones que están disponibles desde la APP son las de Renta, cita previa, pagar aplazar y consultar deudas, notificaciones y cotejo de documentos, herramientas de asistencia virtual, acceso a una videollamada previamente acordada, datos censales y domicilio fiscal, suscripción a avisos informativos, suscripciones y buscador de bienes en subastas, firma de documentos y consulta de documentos firmados. Ofrece el acceso a información y la posibilidad de recibir avisos de novedades informativas y avisos personales. Los usuarios proporcionan datos personales para iniciar sesión, identificar al dispositivo y para permitir que la Agencia Tributaria les proporcione servicios personalizados en el ámbito de sus competencias para lo cual se requiere interacción con sus propios servidores, por lo que la Agencia Tributaria pone en conocimiento de los usuarios que esa información estará disponible para su aplicación móvil. Estos datos se utilizarán exclusivamente a los efectos del cumplimiento de sus derechos y obligaciones tributarias y no serán cedidos a terceras partes, excepto en aquellos casos que se ajusten al artículo 95.1 de la Ley General Tributaria. También proporciona en la APP un apartado con un aviso de privacidad legalmente válido, así como asegura la protección correspondiente de los datos personales. Parte de esta información se almacena o envía a los servidores de la Agencia Tributaria, siempre a los dominios de la que ésta es titular (https://www1.agenciatributaria.gob.es, https://www2.agenciatributaria.gob.es, https://www6.agenciatributaria.gob.es, https://www9.agenciatributaria.gob.es, https://www12.agenciatributaria.gob.es, https://www*.agenciatributaria.gob.es). Asimismo, la Agencia Tributaria garantiza que se almacenará y utilizará la información personal de un modo suficientemente seguro, durante el tiempo necesario y sólo para proporcionarle los servicios personalizados anteriormente descritos. Puede consultar la política de privacidad (https://sede.agenciatributaria.gob.es/Sede/avisolegalApp.shtml), los términos del servicio (https://sede.agenciatributaria.gob.es/Sede/terminosservicioappaeat.html) y la declaración de accesibilidad (https://sede.agenciatributaria.gob.es/Sede/accesibilidadApp.shtml) también en la APP.
AvaiBook
Streamline vacation rental management with this app. It allows property managers to handle listings, bookings, and guest communication from a single platform. Features include traveler registration, invoice generation, direct booking promotion, and calendar synchronization to prevent overbooking.
- Manage listings, bookings, and guests
- Traveler registration and document scanning
- Invoice generation on the go
- Direct booking and payment links
- Calendar synchronization to prevent overbooking
- Channel manager for multiple listing sites
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App for short term rental property managers: Either if you manage your own or third-party listings, AvaiBook by idealista is essential for coordinating your work. Manage your listings, bookings and guests all from one application. With the AvaiBook by idealista app, handling short term rentals is easier than ever. Receive push notifications whenever there's a change in the system and oversee your business no matter where you are. Communicating with your guests, working on your bookings and calendar or synchronizing your team are just a few functions you can perform with the idealista channel manager app. What can you do with the AvaiBook app? - Register travelers directly from the app and easily scan their documents. - Speed up processes like issuing invoices without the need to be near a desktop computer. - Share links to encourage direct bookings or facilitate payments for your travelers. - Edit and update information on the go. - Check the status of your bookings on a unique calendar synchronized with the connected portals and say goodbye to overbooking. - Manage the distribution channels of your listings: Booking.com, Airbnb, Vrbo, Expedia, Google, etc., as well as reservations from AvaiBook's booking engine. If working with the channel manager, PMS, and booking engine of AvaiBook by idealista was already great for your business, multiply the benefits of working with the idealista all-in-one platform from your mobile. Take control of short term rentals right from the palm of your hand!
Screenshots
Verdict
The clearest difference is update cadence: AEAT at every 6 days against AvaiBook's every 5 weeks. On price, review sentiment, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
AEAT ships an update every 6 days, AvaiBook every 5 weeks. The most recent releases landed on October 9, 2026 and September 19, 2026 respectively.
| Parameter | AEAT | AvaiBook |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (4 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 225 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Agencia Estatal de Administracion Tributaria | AvaiBook Online S.L.U. |
Customer experience
AEAT
AvaiBook
In-app purchases
AEAT
No in-app purchases
AvaiBook
No in-app purchases








