Last updated: 18 May 2026
These Terms of Service ("Terms") form a legal agreement between you and Siensi Software (a trading name of Siensi Financial Solutions Limited, a company registered in England and Wales). They govern your use of the Siensi Software practice management product at app.siensi.co.uk ("the Service").
By signing up for or using the Service, you agree to these Terms. If you do not agree, do not use the Service.
The Service is a cloud-based practice management tool for accountants. It includes features for client management, deadline tracking, workflow automation, AML record-keeping, email reminders, and document storage.
We strive to provide the Service on a "best effort" basis but do not guarantee uninterrupted availability. We may occasionally need to perform maintenance which may temporarily affect access.
New accounts receive a free 30-day trial. No payment information is required for the trial. At the end of the trial, your access will be limited until you choose a paid plan. You may cancel at any time during the trial with no obligation.
After the trial, the Service is available on the following monthly plans (prices exclusive of VAT):
Subscriptions are billed monthly in advance. You are responsible for keeping payment details up to date. If payment fails, we will notify you and may suspend your account if not resolved within a reasonable period.
Prices may change with at least 30 days' notice. Any change will apply to the next billing period.
You may cancel your subscription at any time from within the Service or by emailing support@siensi.co.uk.
Cancellation takes effect at the end of the current billing period. We do not offer pro-rata refunds for partial months unless required by law.
Following cancellation, your data will be retained for 90 days to allow reactivation, then permanently deleted. You can download a backup of all your data at any time using the built-in backup feature.
You are responsible for:
You must not:
We reserve the right to suspend or terminate accounts which violate these terms, with reasonable notice except where immediate action is required.
You retain ownership of all data you enter into the Service. We claim no rights to your client data.
Where we process personal data on your behalf, we do so under the terms of our Data Processing Agreement, which forms part of these Terms.
We aim for high availability but do not provide a formal uptime guarantee. Common causes of downtime are upstream provider outages (our database or hosting), which we will work to resolve as quickly as possible.
If you experience a problem, please contact us at support@siensi.co.uk.
The Siensi Software brand, design, and software code are owned by us. You receive a non-exclusive, non-transferable licence to use the Service for the duration of your subscription. No other rights are granted.
Nothing in these Terms limits our liability for death or personal injury caused by our negligence, fraud, or any other liability that cannot be limited by law.
Subject to the above, our total liability arising out of or in connection with the Service is limited to the amount you have paid us in the 12 months preceding the event giving rise to the claim.
We are not liable for:
Either party may terminate this agreement:
We may update these Terms from time to time. Material changes will be notified by email or in-app notice at least 30 days before they take effect. Continued use of the Service after changes take effect constitutes acceptance.
These Terms are governed by the laws of England and Wales. Any disputes will be subject to the exclusive jurisdiction of the courts of England and Wales.
For any questions regarding these Terms: