Omphalis vs Glasp
Glasp combines social highlighting and export with summaries, PDF chat, questions on pages and videos, and audio transcription. Its free highlights are public; private highlights require a paid plan. Omphalis keeps your marks and notes private by default, with reading and questions across selected sources in one notebook.
Use Omphalis to investigate a question across an article, paper and talk: explain an unfamiliar passage, inspect a cited answer, write your interpretation and reopen the evidence later. Privacy by default describes sharing settings, not local-only processing or superior security.
30-day trial, no card required. Includes 600 comprehension units, 200 Ask voice minutes and 15 assistant answers a day. After that, Free stays free. See plan allowances.
Disclosure: this comparison is written by Omphalis about its own product, so it is not a neutral review. We are not paid by Glasp or by anyone else to be compared favourably, this page carries no affiliate links, and every claim about Glasp is checked against their own public documentation. Read the full disclosures, and tell us if something here has gone out of date.
Checked September 15, 2026 against Glasp's homepage and pricing page. Our suggestions about fit are our judgment.
Updated
| Compared on | Glasp | Omphalis |
|---|---|---|
| Working across selected sources | Glasp combines saved highlights with PDF and page/video chat, summaries, audio transcription and exports. Allowances and private highlighting depend on the plan. | Gather selected sources, passage notes and your own writing in a notebook. Ask across that material, inspect citations and return to the evidence later. |
| Sources supported | Web pages, PDFs, YouTube and Kindle. | Articles, dense PDFs and papers, podcasts and talks, each opened as a cleaned source with sections. A Kindle highlights file, or an exported notebook shared from your phone, comes in on every plan as a book with its highlights and notes. |
| Highlights and notes | Highlights are public by default, so others can learn from what you marked. Private highlights are paid, and exports are strong. | Marks and notes stay with the passage on the cleaned source, private by default. |
| Returning to a passage | Highlights retain source links; Glasp also supports exports to other note tools. Passage-level reopening and exported anchors should be checked for your format before migrating. | Come back later and the reason a passage mattered is still next to the source. |
| Pricing model | Free public highlighting, with private highlights on a paid plan. See Glasp's pricing for the current price. | Free plan, and paid plans from $9 a month, with a 30-day trial, no card required (600 comprehension units, 200 Ask voice minutes and 15 assistant answers a day). |
Glasp offers public highlights, community discovery and exports across web pages, PDFs, YouTube and Kindle. Paid plans add private highlights.
In Omphalis, marks and personal notes are private by default. Keep the passage and why it matters, then bring that evidence into your own notebook. Public sharing is a separate, deliberate action.
Glasp includes PDF chat, questions on pages and videos, summaries and audio transcription, with usage limits by plan. Its capabilities extend beyond social highlighting.
Open an explanation beside a passage, ask a cited question and check the source before keeping your interpretation. In a notebook, ask across selected sources and your own notes.
Glasp keeps highlights with their source links and supports exports. Check the return path for the formats you use, especially whether an exported highlight retains enough context.
Bring selected sources and the marks you kept into a notebook. Ask one question across that material, open the citations to check the passages, and write your own interpretation beside the sources. Reopen the notebook later to continue the question.
Glasp also supports questions and source work. This Omphalis capture shows the cleaned reading page and section navigation; it illustrates one reading step, not a complete multi-source synthesis session.
Choose Glasp for community discovery, public highlights and its export integrations. It also offers private highlights on paid plans and questions about saved material.
Visit Glasp →Try Omphalis with a paper and a related talk. Ask one question, inspect the citations, keep your own note and reopen it later. Compare that private research workflow with the way you use Glasp.
See the Omphalis reading workflow →You can keep Glasp for community highlighting. Open the same difficult piece in both and see which one you finish.
Also compare Omphalis with Pocket, Omnivore, Instapaper, Matter, Readwise, Heptabase, NotebookLM, Snipd, LiquidText, MarginNote, Elicit, Zotero, Adobe Acrobat, Speechify, Perplexity, Goodnotes, Mindgrasp, Eightify or Recall.
Yes, for private reading, cited questions and your own source-linked notes across selected material. Glasp also has summaries and chat, plus social discovery and export integrations. Choose by your sharing preferences, formats and research workflow; neither questions nor source links are exclusive to Omphalis.
Glasp free highlights are public by default. Its paid plans add private highlights. Omphalis marks and notes are private by default. Neither fact establishes local-only processing; review the privacy policies before saving sensitive material.
Choose Glasp for social highlighting and learning from others' underlines. Choose Readwise Reader for a private all-in-one library and highlight review systems. If the remaining job is finishing hard multi-format sources with on-page comprehension, compare Omphalis; see the Readwise comparison for depth.