Septalingua
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Roadmap

Septalingua grows through real reading needs and readers' feedback. I choose priorities to make the app more useful with every update. Available features are shown in the interface; release dates depend on complexity and testing.

Available now • Nine interface languages: Russian, English, Italian, German, French, Spanish, Portuguese, Polish and Ukrainian. • Local reading in more than 15 popular formats, text search, bookmarks, notes and personal vocabulary. Books stay on your device for reading. • Translation of selected words, sentences and paragraphs, device-voice read-aloud and data backups. • Working basic AI integration: context-aware translation and an assistant that explains meanings and idioms, analyses grammar, suggests synonyms and explores other meanings. • Installable offline dictionaries, Wiki packs and experimental local models for supported languages; coverage and quality vary.

Latest update: medical databases, easier input and protected backups

The medical module brings together specialist sources as shown in the table at the bottom of this page. Source language coverage varies. Available medical information can be searched and read without registration. Where permitted, missing language versions can be translated on request and are marked as machine translations. LOINC machine translation is currently unavailable under the licence terms.

You can edit the selected request text and copy a dictionary card with terms, definitions and sources. Registered users can open the translator and AI assistant without a book. AI responses can be copied with the submitted text, context, action and model.

Backups can be protected with a password. Encryption takes place on your device; the password is not sent to the server. A lost password cannot be recovered.

Septalingua is built with privacy first. Protecting your data is our priority!

In progress • A clearer interface, easier navigation and more intuitive controls. • Better reading on phones and smaller screens. • File and backup handling, profiles and personal cloud storage setup. • Better compatibility with complex EPUB files and documents.

Additional medical databases

We will continue expanding the medical module. Additional sources depend on their content, language coverage and terms of use.

Explanatory legal dictionaries

We are selecting sources and reviewing their content, language coverage and licence restrictions.

Design and usability

Work continues on the interface, settings and key application windows.

Join the project, test new features and share your feedback.

Next priorities • More capable AI translation and assistants, plus support for your own API key. • More interface languages.

Longer-term plans • Interactive learning, exercises and tests. • A community for reading together, discussion and sharing experiences. • More supported file formats, including input formats for scans and photographs. • Scans and photos: text recognition (OCR), first offline and then online, for scanned PDFs and photographs. Take a photo with your phone or choose an image, review and rotate or crop it, then recognise the text and open it in the reader. • More natural voices and advanced TTS models. • Native Android and iOS apps. • Questions and answers, and ready-to-use language-learning materials.

Open the reader

Offline translation and dictionaries: 9 × 9

Rows show source languages; columns show target languages. Text and individual words are listed separately. Download packs in advance; a listed route does not mean it is installed.

The diagonal lists definition sources in this version. Online availability depends on service settings; articles and the language of each explanation vary by result.

Language routes and dictionaries in this version
↓ / →EnglishItalianRussianGermanFrenchSpanishPortuguesePolishUkrainian
EnglishWiktionary · Online
FreeDictionaryAPI.com · Online
Wiktionary / Kaikki · Offline
Text: Direct
Words: Direct
Text: Direct
Words: Direct
Text: Direct
Words: Unavailable
Text: Direct
Words: Direct
Text: Direct
Words: Direct
Text: Direct
Words: Direct
Text: Direct
Words: Unavailable
Text: Direct
Words: Direct
ItalianText: Direct
Words: Direct
Wiktionary · Online
FreeDictionaryAPI.com · Online
Wiktionary / Kaikki · Offline
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Unavailable
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
RussianText: Direct
Words: Direct
Text: Via English
Words: Direct
Wiktionary · Online
FreeDictionaryAPI.com · Online
Wiktionary / Kaikki · Offline
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
GermanText: Direct
Words: Unavailable
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Wiktionary · Online
FreeDictionaryAPI.com · Online
Wiktionary / Kaikki · Offline
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
FrenchText: Direct
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Wiktionary · Online
FreeDictionaryAPI.com · Online
Wiktionary / Kaikki · Offline
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
SpanishText: Direct
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Unavailable
Text: Via English
Words: Direct
Wiktionary · Online
FreeDictionaryAPI.com · Online
Wiktionary / Kaikki · Offline
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
PortugueseText: Direct
Words: Direct
Text: Via English
Words: Unavailable
Text: Via English
Words: Unavailable
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Wiktionary · Online
FreeDictionaryAPI.com · Online
Wiktionary / Kaikki · Offline
Text: Via English
Words: Unavailable
Text: Via English
Words: Direct
PolishText: Direct
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Wiktionary · Online
FreeDictionaryAPI.com · Online
Wiktionary / Kaikki · Offline
Text: Via English
Words: Direct
UkrainianText: Direct
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Text: Via English
Words: Direct
Wiktionary · Online
FreeDictionaryAPI.com · Online
Wiktionary / Kaikki · Offline

Local models are experimental. Specialist medical and legal databases are not included in this table yet.

Medical databases
DatabaseContentData languages
UMLS MetathesaurusSelected concepts, synonyms, CUIs and MSH/RXNORM source identifiers. Other sources excluded.English
UMLS Semantic NetworkSemantic types, categories and concept relationships.English
MeSHMedical terms, synonyms and definitions.English, German
MedlinePlusReference descriptions of diseases and symptoms.English, Spanish
Orphadata / OrphanetRare disease names and available definitions.English, Ukrainian, Italian, German, French, Spanish, Portuguese, Polish
LOINCTest codes, names and name components; definitions where available. Machine translation disabled.English, Russian, Ukrainian, Italian, German, French, Spanish, Portuguese, Polish
RxNormNormalized drug names, substances, forms and strengths in names.English
EMAMedicine names, substances and official regulator pages.English
ICD-11 / WHOInternational Classification of Diseases: codes, names and available official definitions.English, Russian, German, French, Spanish, Portuguese
WikidataSupplementary labels and identifier links; not a definition database.English, Russian, Ukrainian, Italian, German, French, Spanish, Portuguese, Polish
NCI ThesaurusBiomedical terms, source definitions and mappings.English
FMAAnatomical names, synonyms and available definitions; non-English names have partial coverage.English, German, French, Italian, Spanish
MED-RTDrug classes and explicitly asserted source relationships.English
VANDF (RxNorm)Additional drug classes and dose forms in RxNorm cards.English
MTHSPL (RxNorm)Additional labelers and US product and label identifiers in RxNorm cards.English
Security tests
No.TestResult
1HiddenPassed
2HiddenA
3HiddenA+
4HiddenA
5HiddenPassed
6HiddenWith remarks
7HiddenPartially reviewed