Sanctuary Browser Guard vs Marginalias
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Sanctuary Browser Guard
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Sanctuary Browser Guard helps you preview and protect sensitive prompts before sharing them from iPhone. Paste or type a prompt, run an on-device protection preview, and see what would be redacted before the text leaves the device. The local scanner detects common sensitive data such as email addresses, phone numbers, Social Security numbers, payment-card-like strings, and API tokens, then shows a protected version that can be copied or shared. The app opens in instant demo mode with no account required. No server setup, subscription, or credentials are needed for App Review to use the local preview flow. Sanctuary Browser Guard does not show ads and does not sell user data.
Marginalias
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Keep the quote with its source Evidence Board collects exact passages across your documents, with topics and notes. Verify each clip against the local source and share a focused Markdown evidence sheet. โข Open a document โ Clip evidence. Enter an exact passage of at least three characters and choose its occurrence. โข Save a topic and note with the clip. Open Evidence Board from the library to find and review clips. โข Open a clip to verify its quote and source hash, edit notes, or share the visible board. Exact case-sensitive matching shows up to 32 occurrences. A source hash identifies the local text version; it is not proof of authorship or truth. Up to 256 clips and 1 MiB are retained. Unavailable or changed sources are reported. Marginalias is a private reading companion for your own documents. Import text-based PDFs, plain text, or Markdown notes, then use on-device intelligence to summarize, ask questions, and pull out useful structure without sending your content to a developer server. Build a local library of documents, open the source text whenever you need it, and keep AI output close to the material it came from. Marginalias is designed for focused review, research, note cleanup, study, and document triage. Features: - Import text-based PDFs, plain text, and Markdown - Keep a searchable local document library - Generate concise document summaries - Ask questions grounded in document excerpts - Inspect exact evidence excerpts, character ranges, and PDF pages behind generated claims - See the retrieved context used for each answer - Extract key points, action items, outlines, and glossary terms - Copy and share generated output - Use light, dark, or system appearance - Review a bundled sample document before importing your own files Privacy: Marginalias does not require an account, does not include analytics or advertising SDKs, and does not collect your documents or AI output. Documents and generated output stay on your device. Device note: AI features use Apple on-device intelligence. If Apple Intelligence is unavailable or not enabled, importing and reading documents still work and the app explains the requirement.
Screenshots
Verdict
The clearest difference is price: Sanctuary Browser Guard at Free against Marginalias's $3.99. Sanctuary Browser Guard also leads on iOS requirement (17.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Sanctuary Browser Guard is free to download; Marginalias costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Sanctuary Browser Guard | Marginalias |
|---|---|---|
| Price | Free โ better | $3.99 |
| Update frequency | โ | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac โ better | iPhone, iPad |
| Requires iOS | 17.0 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 0 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | KRISHNA PINNAMANENI | Robert Corbin |
In-app purchases
Sanctuary Browser Guard
No in-app purchases
Marginalias
No in-app purchases
Questions
Is Sanctuary Browser Guard free?
Is Marginalias free?
Do Sanctuary Browser Guard or Marginalias have ads?
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