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Accounting · head to head

Billin vs Fiken

Billin logo

Billin

Accounting

Spanish online invoicing software for freelancers and small businesses

From
€6.6/month
Rated
-
Full reviewWebsite
Fiken logo

Fiken

Accounting

Norwegian accounting software for sole proprietors and small companies

From
219/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Billin plan Basico caps usage at just 5 clients, 1 user and 10 products for EUR 6.60/month, well below what most active small businesses need; Fiken bank integration available only as add-on (69 NOK/month)
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Billin and Fiken actually diverge.

Attributes where Billin and Fiken differ
AttributeBillinFiken
Starting price€6.6/month219/month

Identical on both: pricing model (subscription), free tier (No), platforms (Web), user rating (Not yet rated), category (Accounting).

What people use each for

The jobs each tool is most often brought in to do.

Billin

  • Invoice managementnot Fiken
  • Multi-user accounting for freelancers and small businessesnot Fiken

Fiken

  • Solo accounting and invoicing for small businessesnot Billin
  • Multi-user accounting collaboration at no extra costnot Billin
  • Invoice management with EHF e-invoice supportnot Billin
  • Bank integration for transaction trackingnot Billin

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Billin

  • Plan Basico caps usage at just 5 clients, 1 user and 10 products for EUR 6.60/month, well below what most active small businesses need
  • Plan Pro still caps clients at 50 and users at 3 for EUR 14/month, so any business with more clients must move to the unlimited EUR 23/month tier

Fiken

  • Bank integration available only as add-on (69 NOK/month)
  • Project accounting requires separate add-on (69 NOK/month)
  • Payroll and employee features cost extra (69 NOK/month)
  • Physical mail invoicing costs 25 NOK per invoice

Pricing, plan by plan

Billin

€6.6/month
  • Plan Básico$80/year
    • 0-5 clients
    • 1 user
    • Max 10 products
  • Plan Básico$96/month
  • Plan Pro$168/year
    • 6-50 clients
    • 3 users
    • Max 50 products
  • Plan Pro$204/month

Fiken

219/month
  • Base Plan$219/month
    • Complete accounting functionality
    • Unlimited invoice sending via email and EHF
    • Unlimited user accounts

Which should you pick?

Choose Billin if

Nothing in the data separates Billin from Fiken on the points above - pick on price and on how each one feels to use.

Billin review

Choose Fiken if

Nothing in the data separates Fiken from Billin on the points above - pick on price and on how each one feels to use.

Fiken review

Questions people ask

Is Billin or Fiken better?
Neither clearly leads. Billin starts at €6.6/month and Fiken at 219/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Billin or Fiken?
Billin starts at €6.6/month and Fiken at 219/month.
Does Billin or Fiken run on more platforms?
Both run on Web, so platform support will not decide this one for you.
What is Billin best used for?
Billin is most often used for invoice management, multi-user accounting for freelancers and small businesses. Of those, invoice management and multi-user accounting for freelancers and small businesses are not what Fiken is typically brought in for.

Answered from the vendors’ own pages

Billin: What are Billin's plan costs?

Billin offers three plans: Básico at €80/year (€6.60/month), Pro at €168/year (€14/month), and Ilimitado at €276/year (€23/month). Annual billing includes 18% savings compared to monthly.

Source
Fiken: Is there a free trial for Fiken?

Yes, Fiken offers a 30-day free trial with no credit card required. After the trial, the base plan costs 219 NOK per month.

Source
Billin: Is there a free trial for Billin?

Yes, Billin offers a 30-day free trial with all features included. No credit card is required to start.

Source
Fiken: Do additional users cost more on Fiken?

No, Fiken includes unlimited user accounts at no extra cost on the base plan.

Source
Billin: How many users does each Billin plan include?

Básico includes 1 user, Pro includes 3 users, and Ilimitado includes unlimited users.

Source
Fiken: What add-ons are available and how much do they cost?

Monthly add-ons include bank integration, project accounting, KID number system, and API access (69-99 NOK each). Time tracking, payroll, and expense reimbursements also cost 69 NOK per month. Annual tax filing costs 1,290 NOK for sole proprietors or 1,590 NOK for limited companies.

Source
Fiken: What are the per-transaction costs?

SMS invoicing costs 3 NOK, e-invoicing via Vipps costs 5 NOK, physical mail invoicing costs 25 NOK, and credit checks cost 15 NOK per transaction.

Source
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