Minnesota · Educational software

Apps that respect how kids actually learn

Koronis Software Solutions, LLC builds Spell4Fun and VocabFun — focused tools for spelling and vocabulary, without the clutter.

Software under one roof

Koronis Software Solutions, LLC is the company behind Spell4Fun and VocabFun. Each app has its own site and store listings — this page is the business home base where you can explore both in one place.

Apps

Two products today; more projects as they mature.

Spell4Fun

Easy spelling practice. Hear each word, type what you hear, get instant feedback — built for weekly lists and independent practice.

Vocab Fun

Understand words faster. Grade-appropriate definitions, daily practice, and multilingual support — comprehension over gimmicks.

Spell4Fun

Spelling made easy. Hear it. Type it. Learn it.

Spell4Fun helps kids practice weekly spelling in a way that stays fun, fast, and frustration-free — from elementary lists to specialized vocabulary.

  • Enter Create a list with the words or terms you want to study.
  • Practice Listen, type what you hear, get instant feedback.
  • Results Track progress; missed words return until they stick.

Why we built it

To simplify weekly spelling for families — traditional drills felt stressful; Spell4Fun keeps kids engaged while parents step back.

Pricing & privacy

Free to try with a limited list size. A one-time upgrade unlocks more (no ads; subscription only if you choose). Data stays on the device — no accounts, tracking, or cloud sync.

Who it is for

Grades about 1–5 and weekly school lists — and anyone who learns well by hearing and typing.

VocabFun

Understand English words faster. Free to try.

Clear definitions, daily practice, and optional translations for multilingual families — real comprehension, not flashy games.

Our method

  • One word at a time. Deep comprehension over cramming — one high-impact word per day.
  • Accessible definitions. Written one to two grade levels below the target word.
  • Context & audio. Two example sentences plus clear pronunciations.

Built for parents, homeschoolers, ESL households, and teachers who want focus without distracting gamification.

Daily free limit

One word free per day builds a steady habit. Unlimited practice and the full library are available via subscription on the App Store and Google Play.

ESL & languages

Optional translations (e.g. Spanish, Vietnamese, Portuguese). More languages may come over time.

Safety

No ads — a calm interface for concentration and comprehension.

More on the way

Additional projects are in progress. This site stays the hub as new apps launch.