Terms of Service

Overview

BookSylo is an independent product for iOS and Android. It is not affiliated with Amazon, and it uses public Amazon page information only.

By using BookSylo, you agree to these terms and to the Privacy Policy.

Service Description

BookSylo tracks public signals such as reviews, ratings, rank, price, category ranks, and badges for books you choose to monitor. It highlights meaningful changes and sends notifications when configured.

BookSylo does not guarantee that every public signal will always be available. Public pages and third-party data sources can change, block, omit, delay, or remove information.

Accounts

Some features may work with an anonymous app user id, but paid entitlement must be tied to a registered BookSylo account. You are responsible for keeping your account credentials secure and for using an email address you can access.

User Responsibilities

You agree to use BookSylo lawfully and not to provide Amazon account credentials. BookSylo does not need, request, or store Amazon login details, KDP credentials, sales reports, royalty data, or private Amazon account information.

You are responsible for choosing which books to track and for ensuring your use of BookSylo complies with any obligations you have to platforms, publishers, or other parties.

Plans And Subscriptions

The Free plan lets you track 1 ASIN. The Pro plan is required to track more than 1 ASIN and to use paid-only organization features such as grouping multiple editions into one Home title card.

Subscriptions are purchased through Apple App Store or Google Play billing and managed through RevenueCat. Store billing rules, trials, renewals, cancellations, refunds, and payment methods are handled by the applicable store provider. BookSylo does not receive your full payment card number.

If a paid subscription expires, is canceled after its active period, enters a billing issue state, or otherwise no longer gives paid entitlement, BookSylo may enforce Free plan limits and disable tracking beyond the Free allowance according to the current product rules.

Plan availability, pricing, free trials, and included features may change. Changes will not reduce rights you already have for a paid billing period unless required by law, platform rules, or service integrity needs.

Notifications

BookSylo sends notifications only when configured and when device permissions, push credentials, quiet hours, and service availability allow delivery. Notification delivery is not guaranteed.

Disclaimers

BookSylo is provided as-is. It does not guarantee any particular ranking outcome, review volume, sales result, commercial result, or completeness of Amazon/public-source data.

BookSylo may be unavailable or degraded because of maintenance, hosting issues, provider outages, store billing issues, push-provider behavior, public page changes, or other events outside BookSylo's control.

Suspension Or Termination

BookSylo may restrict or terminate access if the service is misused, if required by law or platform rules, or if continued access would create operational, security, or abuse risk.

You may request account deletion in the app. The deletion process and 30-day grace period are described in the Privacy Policy.

Changes

BookSylo may update these terms and its service. Continued use after a change means you accept the updated terms.

Contact

For support or questions, email support@mail.booksylo.com.