RHLS
App Store
Language, reading, subtitles, kitchen and finance apps — every one free to start, with installers for Linux (.deb), Windows (.exe) and Android (.apk). Pro upgrades and bundles fund the studio; the free tiers never go away.
Start here, before the apps. Every word we know across six languages is a star, and the same idea in several languages is one star — cat · gato · 猫 · chat. The lines between them are the relations the database carries. This is the whole six-language concept graph, walkable: our hero product, and the fastest way to see what Lingua Mundi actually is.
283k-entry Japanese dictionary, offline
A full Japanese dictionary — JMdict, KANJIDIC2, Japanese WordNet and more — that works without a connection. Also powers the Lingua Mundi language API for developers.
Free forever
Japanese EPUB editor with one-click furigana
Read and annotate Japanese EPUBs with instant furigana and vocabulary glosses, backed by the offline dictionary. Pro adds the full local database.
Free · Pro $36 one-time, or $11/mo
The offline six-language dictionary
English, Spanish, Japanese, French, Italian and Portuguese on your device — no connection needed. Texupan is the offline edition of Lingua Mundi: the same lexicon, on your machine, with optional lookups against the full live database. Localized interface in all six languages.
Free · part of the Language Bundle ($44)
Subtitles, fixed in your browser
Shift timing, convert formats, correct drift, censor words and validate against Netflix, BBC and WAI style guides — your files never leave your device.
Free · Pro $9 one-time
Kitchen management, offline-first
Recipes, inventory, workflow and purchasing for restaurants — free and works without a connection. Premium adds multi-kitchen sync and supplier ordering.
Free · Premium $50/mo per kitchen
Score viewer, playback, rehearsal projects
A desktop companion for choir and ensemble directors: PDF scores, section markers, A/B looped rehearsal, parts view — bilingual English/Spanish.
Free · Pro $19 one-time · coming soon
Plush-toy pattern mapper
Turns a 3D model into 2D sewing panels for plush toys and crafters — free to start.
Free · Pro $9 one-time · coming soon
Money, made visible
A lightweight financial tracker for young entrepreneurs and artists: salary, side gigs, expenses, transaction notifications and receipt OCR.
Free · Pro $12 one-time · coming soon
Buy once and own it forever, or subscribe to the whole language stack on one bill. Either way, the bundle works out to roughly 30–35% cheaper than buying the pieces separately.
Shikibu Pro + Texupan
$44 one-time
Normally $65
Save $21 · 32% off
Language Bundle + Subtitle Toolkit Pro
$49 one-time
Normally $74
Save $25 · 34% off
API keys + every subscription, one bill
$19 / month
Normally $29/mo
Save $10/mo · 34% off
KitchenOS Premium is billed per kitchen and isn't part of these bundles — multi-kitchen teams can ask about volume pricing at rhls.softdev@gmail.com. Every product still has a free tier; nothing here takes that away. Have a gift card? Enter its code at the checkout — it applies automatically.
The dictionary, the apps and the data stay free — no ads, no paywall on the dictionary. Donations pay for the servers and for the data work behind the next language.
Honest goal: €2,400 a year — infrastructure plus the next language's data work.
Prefer to build it yourself? The source is MIT-licensed and the data is open — take it and go.
Every installer lives in our GitLab package registry: Linux .deb · Windows .exe · Android .apk · ZIP.
Paid tiers and API access are managed in each product's dashboard.