Terms of Service
Version 1, in force from 2026-10-03
The Swedish version governs if the two differ.
Diffa is provided by Sliti & Klay Group AB, reg. no. 559524-2891, Remigatan 41, SE-261 45 Landskrona, Sweden. In these terms Sliti & Klay Group AB is “Diffa” or “we”. “You” is the company that uses Diffa. The person who creates the account confirms that they may act for the company.
The terms apply to companies. Diffa is not sold to consumers.
The terms include the appendix Purchases via a platform, the data processing agreement and the list of subprocessors. In its own matter, an appendix takes precedence over the terms.
1. About the terms
The terms apply from the day you create an account or start using Diffa. They apply to everyone who uses Diffa in your company’s name: owners, members and people you have invited.
If you bought Diffa through the Fortnox App Market or the Shopify App Store, the appendix Purchases via a platform governs payment. Everything else is governed by the terms here.
The terms exist in Swedish and in English. If the texts differ, the Swedish version applies.
2. The service
Diffa fetches your payouts from payment platforms and books them in your accounting system. For every payout Diffa creates vouchers according to the rules you have approved: sales gross, the platform’s fees separately, VAT as the platform reported it and the exchange rate from the Riksbank. Every month Diffa shows that what was paid out matches what was booked.
Nothing is booked until you have approved the accounts for a source and switched bookkeeping on for the company. Until then Diffa only collects the material, so that you can see what will be booked. A voucher is never booked twice.
Which platforms and accounting systems Diffa supports is stated on diffa.se. We add and remove integrations over time, see section 14.
3. What Diffa is not
Diffa is a technical tool. Diffa is not an auditor, an accountant or a tax adviser and gives no such advice.
The accounts and VAT codes Diffa suggests are starting points for you or your accountant to decide on, not advice. That Diffa suggests an account does not mean it is right for your particular business.
Diffa never reads your bank accounts and books no bank lines. The bank deposit is booked by you or by your accounting system.
4. The customer’s responsibility
The duty to keep books is yours and cannot be transferred to Diffa. You are responsible for
- the chart of accounts, VAT codes, VAT registrations and other settings in Diffa being right for your business
- reviewing what is booked
- the bookkeeping, the VAT and the returns, whatever Diffa suggested or booked
- following the terms of the platforms and the accounting system you connect
- your logins, keys and permissions as well as what the people you let in do in Diffa.
If you need help with an accounting question, turn to an accountant or an auditor. Diffa is built so that this person can be invited and approve.
5. What Diffa is responsible for
Diffa is responsible for the service doing what it says. It fetches the material, codes it according to the rules you approved, books every voucher once and keeps the material as described in section 10.
Diffa is responsible for technical faults in the service, not for judgements in the bookkeeping. An account you approved is your choice, also when Diffa suggested it.
6. Account, roles and accounting firms
The person who creates the company’s account becomes its owner. The owner can invite members, give them roles and remove them. You are responsible for only authorised people having access.
An accounting firm can be the customer on behalf of its client companies. The firm then confirms that it has an engagement from every client company to connect its books. For personal data, the client company is the controller, the firm the processor and Diffa the subprocessor.
We may need to see your company’s view in Diffa to help you. That access happens only in a support case or at your request. It is logged and it is visible in the service while it lasts.
7. Prices and payment
You pay per company and accounting system, according to the plan you chose. Prices are stated on diffa.se and exclude VAT.
If you pay Diffa directly, the fee is charged monthly in advance through Stripe. Invoices and receipts are available in the service. If you bought through a platform, the platform’s billing applies, see the appendix Purchases via a platform.
We may change prices with 30 days’ notice by e-mail. A price change applies from the next billing period. If you do not accept it, terminate the agreement before the change takes effect.
If payment is late we may charge interest under the Swedish Interest Act (räntelagen) and a reminder fee as permitted by law.
If we offer a trial period, its length is stated on diffa.se. During the trial the terms apply in all other respects. We may also give free time or free accounts, for example to those who help us test Diffa.
8. Term and termination
The agreement runs monthly with no fixed term. You can terminate it at any time, in the service or by e-mail. The termination takes effect at the end of the current billing period. Until then Diffa works as usual.
We can terminate the agreement with three months’ notice. We can terminate it with immediate effect if you breach the terms materially and do not remedy it within 30 days after we pointed it out, if an invoice remains unpaid after a reminder or if you become bankrupt, enter reorganisation or are otherwise insolvent.
If you change plan, the new plan applies at once. The price of the new plan applies from the next billing period.
9. Suspension
We can pause the service without terminating the agreement. That applies when a platform or an accounting system has withdrawn Diffa’s access to your company, when a payment is missing, when the service is used in breach of the terms or when security requires it.
During a pause nothing is fetched or booked. Nothing is deleted. When the cause is gone the service continues where it stopped.
10. Data, material and archive
Your data is yours. Diffa never sells, rents out or shares your data or personal data with third parties for their own purposes. We do not use them for advertising. Data is handed only to subprocessors that process it on Diffa’s behalf under the data processing agreement, to the platform or accounting system you connected yourself and when law or an authority’s decision requires it.
Diffa stores as little as possible. Personal data about your customers is removed when the material arrives: names, addresses, e-mail, phone and card details. What remains is what the bookkeeping needs, such as the platform’s ids, amounts, currency, country and VAT. What applies to you as a user of Diffa is in the privacy policy.
Everything behind a voucher we keep until 31 December of the eighth year after the voucher’s year, also after the agreement has ended. On request we hand it out as SIE 4. That is longer than the seven years of the Swedish Bookkeeping Act (bokföringslagen), so that you can meet your archiving duty also if you stop using Diffa.
Bookkeeping data and material are stored in Sweden.
The books in your accounting system are your accounting records. Diffa’s copies are supporting material. You are responsible for your books meeting the Bookkeeping Act and for any notification to the Swedish Tax Agency about where accounting records are kept.
11. After the agreement
When the agreement has ended we delete the data about your account within 90 days. That covers users, logins and settings. Material behind vouchers is kept as described in section 10.
Export what you need before the agreement ends. During the archive period we hand out material on request.
We may keep and use anonymised statistics about how Diffa has been used, to develop the service. They can never be linked to a company or a person.
12. Data portability
You can get your data out at any time in a common, machine-readable format. Vouchers are delivered as SIE 4 and material as CSV or in the format the platform delivered. The right follows from the EU Data Act and applies free of charge for what can reasonably be delivered automatically.
13. Availability and support
We aim for Diffa to be available at all times, but we guarantee no particular level. Diffa depends on the interfaces of the platforms and the accounting systems. An outage there gives no right to compensation. Diffa catches up on what was missed when they respond again.
Planned maintenance that affects you is announced in advance. Support is available on weekdays through support@diffa.se. Troubleshooting in platforms, accounting systems or other systems is not included.
14. Changes to the service and the terms
We develop Diffa continuously. Changes to your disadvantage, for example an integration being removed or the terms being tightened, are announced 30 days in advance by e-mail. If you do not accept the change you can terminate the agreement before it takes effect. If you keep using Diffa after that day, the change applies.
Improvements, additions and corrections can be made without notice. The current version of the terms is always on diffa.se with version and date.
15. Intellectual property and trademark
Diffa owns the service, the code and all material in it. You get a non-exclusive right to use Diffa during the term, for your company’s bookkeeping. You may not copy, rent out or rebuild the service or use it to build a competing service.
You own your data. We may use it only to deliver the service under the terms.
The name Diffa, the logo and the wordmark are protected marks that belong to the company behind Diffa. You may say that you use Diffa. You may not use the name or the logo in your own marketing, as part of your own name or in a way that suggests a partnership, without our written permission.
16. Confidentiality
What we learn about each other through the agreement stays between us. That covers business information, bookkeeping information, prices agreed separately and technical information about the service. Exceptions apply to what is publicly known, what a party already knew or what must be disclosed under law or an authority’s decision. Confidentiality applies during the term and for five years after it.
17. Limitation of liability
Diffa’s liability is limited to the fees you paid Diffa during the twelve months before the claim. If you paid through a platform, the amount the platform invoiced you for Diffa counts.
Diffa does not compensate indirect loss. That includes loss of profit, loss of data you could have exported, tax surcharges, late fees, the cost of redoing bookkeeping and third-party claims.
Claims must be made in writing within two months from when you discovered or should have discovered the fault. Otherwise the right to compensation lapses.
The limitations do not apply in case of intent or gross negligence.
18. Force majeure
Neither of us is liable for what lies outside our control. That includes outages at platforms, accounting systems, hosting providers or networks, as well as decisions by authorities, strikes, war, natural disasters and large-scale cyber attacks. The party affected shall notify the other without delay. If the obstacle lasts longer than three months, either of us may terminate the agreement.
19. Assignment
Diffa may, without your consent, assign the agreement to a company that takes over the Diffa business or to a group company. With the agreement follow the processing of personal data, your data and the payment relationship. We notify you in advance. The terms continue unchanged with the new party until they are changed under section 14.
You may assign the agreement with our written consent, for example when your company changes form or owner.
20. Governing law and disputes
Swedish law governs the agreement. Disputes are decided by Lund District Court (Lunds tingsrätt) as the first instance. Before either of us goes to court, we try to resolve the matter by contacting each other.
Questions about the terms go to support@diffa.se.