Comparison

Sanctuary Browser Guard vs Marginalias

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Sanctuary Browser Guard

Features
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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.

About

Marginalias

Features
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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. โ€ข Open a document โ†’ Clip evidence. Enter an exact passage of at least three characters and choose its occurrence. โ€ข Save a topic and note with the clip. Open Evidence Board from the library to find and review clips. โ€ข 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

Sanctuary Browser Guard1 screens
Marginalias3 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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.

Scorecard2 real differences ยท 4 level
Sanctuary Browser Guard versus Marginalias: the parameters behind the verdict, then further details
ParameterSanctuary Browser GuardMarginalias
PriceFree โ€” better$3.99
Update frequencyโ€”Every 5 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Mac โ€” betteriPhone, iPad
Requires iOS17.0 โ€” better26.0
Further details โ€” not scored
Size0 MB1 MB
Age rating4+4+
DeveloperKRISHNA PINNAMANENIRobert Corbin

In-app purchases

None

Sanctuary Browser Guard

No in-app purchases

None

Marginalias

No in-app purchases

Questions

Is Sanctuary Browser Guard free?
Sanctuary Browser Guard is free to download, with no in-app purchases.
Is Marginalias free?
Marginalias costs $3.99, with no in-app purchases.
Do Sanctuary Browser Guard or Marginalias have ads?
Neither Sanctuary Browser Guard nor Marginalias shows ads.

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