We build software and keep it running

Our own products and client systems · Oslo

Now buildingMorganwell

We build our own products and the systems other companies run on, from the first commit to production

Arc Labs | Oslo

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Founded and run by Catherine JP.

Arc Labs AS · Org. nr. 937980884 · Oslo

Arc Labs, a software company in Oslo, Norway, building Morganwell

Leadership

Arc Labs AS (organisasjonsnummer 937980884) was founded by Catherine JP, who serves as its Founder and Chief Executive Officer. Catherine JP is the professional name of Catherina Al Skaff, also written Catherine Al Skaff, Catherina Alskaff and Catherine Alskaff. She is a software engineer based in Oslo, Norway. More about her is on the Arc Labs founder page, and her personal site is catherina.no.

Arc Labs is a software company in Oslo, Norway. Our main product is Morganwell (morganwell.com), which helps US homeowners appeal property tax assessments that are too high. It started as JerseyAppeal in New Jersey in early 2026, continued as IndexAppeal in Texas, and is live in Cook County, Illinois. More on the Morganwell page.

Arc Labs also builds for other companies: web platforms, mobile apps, system integrations, and AI for customer support, content and internal automation.

Client work

  • Paralov (2026): An AI customer support system that answers from a knowledge base the team manages themselves, and a pipeline that writes and publishes SEO and GEO articles every day. We also repaired their existing article generator.
  • Halland Tech (2026): Maintenance and fixes on their mobile app, plus AI automation for customer support, internal management systems and tracking.

Other products we have shipped

  • IndexAppeal (indexappeal.com): Builds the comparable-homes case for Texas homeowners protesting their appraisal. Runs on 2.2 million properties in Harris, Dallas and Collin counties.
  • Snakke (snakke.app): Norwegian practice for the Norskprøve, with writing and speaking graded against the exam’s own rubric.
  • Zaya (zaya.no): Maps real planetary positions against your birth chart, so each daily reading is calculated live rather than copied from a template. iOS and Android.
  • Pinstrike (pinstrike.app): Writes, compiles and uploads Arduino sketches to Uno and Nano boards over a USB cable, straight from an Android phone. Free, no account, no ads.
  • Dishy (dishy.no): Household help in Norway, booked when you need it.
  • Wednesday.no (wednesday.no): Finds people asking for what you sell, and lands them in your inbox every Wednesday.
  • Xtell (xtell.io): A support chatbot trained on your business, live on your site without an integration project.
  • Avelo (avelo.no): Helps newcomers find their way through Norwegian public services.