Stable signalNo paid features detectedHigh-risk permissions

ScienceHelper (download millions of papers)

With ScienceHelper, you can download millions of scientific articles

Users10KCurrent public install base

Rating5.0Store average score

Reviews14Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

ScienceHelper (download millions of papers) Media preview

4 assets

Trend

User growth trend

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User Growth Over Time

Rating trend

7-day rating trend

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7-day rating change

Start

5.00

Latest

5.00

7-day rating change

0.00

2026年7月10日2026年7月16日

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1-day growthNo data

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7-day growthFlat

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Technical snapshot

Version, languages, and crawl freshness

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Version1.4

ManifestV3

Size57.69KiB

Languages7Deutsch / English / Indonesia +4

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

ScienceHelper is a Chrome Extension for researchers and students. Use it to download papers and articles from thousands of websites.

When you find an academic paper, simply click the ScienceHelper button in your toolbar to search the web for a legal Open Access version. ScienceHelper will automatically find the DOI of the paper you are looking at and use that information to find the paper from various online sources and databases.

Reviews

Recent review snapshot

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Store average score5.0Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average5.0Average computed only from synced review bodies below

Reviews with text1Synced review bodies

Total ratings / reviews14Chrome Web Store public rating/review count

Store average score: 5.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★

4★

3★

2★

1★

Eslam Nofal2023年10月8日

good

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AI product read

Chrome extension that helps researchers find and download open-access versions of academic papers by extracting the DOI from the current scholarly page and redirecting to configurable open-access search services.

Researchers and students encounter paywalled academic papers and need a quick way to locate legally available open-access versions across multiple repositories and databases.

1. User navigates to an academic paper page on any publisher site. 2. User clicks the ScienceHelper toolbar button to open the popup. 3. User clicks 'Download this paper'. 4. Extension injects a content script that scans the page's meta tags and DOM for a DOI. 5. Extension reads the configured paper search URL from storage (default: oa.mg). 6. Extension opens a new tab with the search service URL + extracted DOI, directing the user to find an open-access version.

Target users: Researchers / Graduate students / Academics / Anyone seeking open-access versions of scientific papers

External services like oa.mg or OpenAccessButton may have their own login/payment requirements, but these are outside the extension's control and not gated by the extension.
content.js is an empty file (0 bytes) — the actual DOI extraction is injected via chrome.scripting.executeScript from popup.js rather than a traditional content script.
Cannot verify whether sciencehelper.vercel.app/instructions page has any login or payment requirements without fetching external content.

Monetization

No paid features detected

No payment code, premium gating, billing APIs, subscriptions, or upgrade prompts exist anywhere in the extension. All features (DOI extraction, configurable search URL, multiple open-access service options) are fully available without any payment. The keyword 'pro' matches were false positives (German word 'probieren' meaning 'try' and JavaScript Array.prototype).

Confidence: 95
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension has no login UI, no authentication calls, and no user account system. The entire core workflow—extracting a DOI from the current page and opening a search URL—works without any login. The destination services (e.g., oa.mg, OpenAccessButton) are public and accessed via direct URL construction.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：storage、activeTab、scripting
主机权限覆盖范围较宽

Publisher

general-extension

Independent publisher

Email: [email protected]
Phone: --
Address: --

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Permissions

Host access