Stemmata: Research Library
iOS app by BERKE KAHRAMAN. Reference · BERKE KAHRAMAN
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.1
- Listing last refreshed
- 2026-09-10
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Store description excerpt
Stemmata is a research library that tells you what you are allowed to do with each paper — and why. WHY THIS MATTERS Text and data mining permission is not a detail. Across 350 live records measured from OpenAlex, only 20% could be processed in full; 45% were metadata-only, and 33% were blocked outright by publisher opt-outs. Most tools hide this. Stemmata puts it on the card, with the reason written out: which licence, which publisher, which clause. You should not have to guess whether you may run an analysis over a paper you already have. WHAT IT DOES • Permission on every work — full text, metadata only, or closed, each with its reason • Search that runs offline and needs no model. A lexical index and a character-trigram vector work together; on inflected queries the vector leg raised recall from 7.4% to 44.1% • Notes on a conflict-free merge engine (CRDT). Edits never collide — and in this release your notes stay on this device • Export to BibTeX, RIS or Markdown. Blocked works never leave, not even their metadata, and the count of what stayed behind is shown • Lineage. A stemma drawn from what a work cites: filled where you hold the full text, open where the publisher closed access — and an honest count of the cited works that are not in your library, counted rather than guessed at NO SERVER Your library and your notes live on your device. There is no account, no sync service, no analytics. The import tool talks to OpenAlex once; after that the app works on a plane. WHAT IT IS NOT Stemmata does not download papers you have no right to. It does not guess a licence when none is stated — it says so and indexes the metadata only. A permission the publisher did not grant is not a bug to work around. Built for people who read at volume: doctoral researchers, systematic reviewers, and anyone assembling a corpus they intend to analyse rather than merely cite. THE NAME A stemma codicum is the family tree editors draw for the surviving copies of a text: which descends from which, and which witnesses can still be read. A citation graph is the same picture. The app is named for it, and now draws it. Stemmata reports what each work's record says: the licence, the publisher's declared text-and-data-mining terms, and the reason behind every decision. It does not give legal advice. When a record is silent or unclear, it reports less permission, not more.
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