Kindle formats
MOBI, AZW and AZW3/KF8 join the reflow reading system with format-aware typography and navigation.
Seedling Reader PremiumRead deeper.
Read deeper.
Remember more.
Premium keeps Seedling Reader's quiet local-library foundation and adds the tools serious readers, students and researchers ask for: Kindle-family books, OCR, AI meanings, translation, encrypted Google sync, advanced export, study workflows, reading insights, ink annotations and full-text search.
15 premium capability groups16 app themes16 AI provider endpoints35 ready format entries
OCR + TRANSLATIONUnderstand difficult pagesRecognize scanned text, translate selections and continue reading without breaking flow.
STUDYWord Bank + spaced reviewBuild knowledge from highlights, meanings, notes and saved terms.
SYNCYour place, across devicesReading state, knowledge, preferences and optional book files through Google.
INSIGHTSSee your reading lifeGoals, activity and reading analytics without turning books into a social feed.
Google Account SyncSync the reading state.
Sync the reading state.
Choose whether books travel too.
Premium separates lightweight reading/knowledge sync from original-book transfer, so you can synchronize progress and annotations without automatically uploading every book.
This deviceLibrary + knowledgeProgress · highlights · notes · bookmarks · Word Bank · preferences
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Private Google storageEncrypted sync stateApp data + optional drive.file book transfer when enabled
Automatic syncBackground batching with retry when connectivity returns.Book modesOff, selected books or all eligible books.Transfer rulesWi-Fi-only, charging-only and storage/size limits.RecoveryDevice list and versioned reading-data recovery snapshots.
Privacy design: reading data and recovery snapshots can be protected with end-to-end encryption using a sync password shared only across your devices. Original book files remain ordinary files in the Reader's private Drive area rather than being sent to Teknoble.
Meaning, translation & studyTurn reading into
Turn reading into
retained knowledge.
Premium extends the selection menu from simple annotation into a learning system. Look up a word, translate a passage, send a term to Word Bank, add a note, review later, or export knowledge to another workflow.
Configurable context menuChoose, arrange and prioritize text actions.
Dictionary + AI priorityDictionary → AI, AI → Dictionary, or one source only.
Spaced repetitionStudy infrastructure tracks review scheduling.
IntegrationsReadwise and Zotero configuration, test and disconnect flows.
AI provider choice
Bring the provider you already use.
The current build includes 16 provider endpoints, with API keys stored through the app's secure-key path.
OpenAIAnthropicGeminiCohereMistralGroqOpenRouterDeepSeekxAIPerplexityTogetherFireworksHugging FaceNVIDIA NIMZ.aiOllama Cloud
Format depthFrom EPUB to Kindle,
From EPUB to Kindle,
from PDF to archives.
The current engine declares 35 ready format entries. Premium's Kindle capability completes the broad catalog with MOBI/AZW/AZW3 alongside PDF, EPUB/KEPUB, DjVu, documents, comics, structured data and legacy ebook formats.
EPUBKEPUBPDFMOBIAZWAZW3 / KF8DjVuCBZCBRDOCDOCXODTRTFFB2FB2.ZIPTXTMarkdownHTML/XHTML/HTMLZJSONYAMLXMLCHMZIP/RARPalmDOCeReaderPluckerTealDoczTXTTCRZVRQiOOLRF
Premium without losing the book
Research tools when you need them. Quiet pages when you don't.
The Premium philosophy is depth without turning the reader into a dashboard. Advanced tools live around the text—not on top of it.