Kostenia

Kostenia

Nelten Public GmbH
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About

Kostenia helps German businesses and advisers investigate operating costs using financial exports and supporting documents. The web application organizes cost categories, recurring payments and year-on-year changes into a structured review. Findings connect each amount to a calculation, reference source and next verification step. Public calculators cover company broadcasting contributions, leasing factors and payment-card interchange fees. The website includes a product demonstration. Users import existing financial export files and use the resulting evidence to prepare focused reviews of contracts, charges and recurring expenses. Actual savings depend on the documents and case-by-case verification. Kostenia is a German-language product operated by Nelten Public GmbH in Dresden, Germany. Business phone: +49 351 44289997.

About

Satsly is a Bitcoin-only tax software built for the German market. It helps users import Bitcoin transactions, calculate gains using FIFO, track holding periods, document tax-relevant events and create a structured tax report for German private sales transactions. Satsly focuses on simplicity, privacy-friendly usage and Bitcoin-specific workflows instead of complex multi-coin portfolio tracking. The software is especially useful for German Bitcoin users who want to document purchases, sales, wallet transfers and future Lightning Network activity in a clear and understandable way.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

German-speaking small and medium-sized businesses, business owners, finance teams and cost advisers reviewing operating expenses.

Audience

German Bitcoin users, long-term holders, DCA investors, Bitcoin-only users, privacy-conscious users, tax-conscious crypto investors and tax advisors working with Bitcoin-related client cases.

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

No images available

Screenshots and Videos

No images available

Pricing

No information available.
Free Version
Free Trial

Pricing

€29/year
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Nelten Public GmbH
Founded: 2025
Dresden, Germany
kostenia.de/

Company Information

Satsly
Founded: 2026
Germany
www.satsly.de/

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CryptaTax

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Categories

Categories

Integrations

Bitcoin

Integrations

Bitcoin
Claim Kostenia and update features and information
Claim Kostenia and update features and information
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Claim Satsly and update features and information