# Eureka Viewer > Secure eReader for protected PDFs with annotation and indexing features. (iPhone/iPad app by Archimedia Advantage Inc..) - Source: https://appshunter.io/ios/app/eureka-viewer/id1532773030 (this page in markdown: same URL + `.md`) - Developer: [Archimedia Advantage Inc.](https://appshunter.io/developer/1532773032) - Category: Education - Price: Free - Rating: 2.89/5 from 9 App Store ratings · 9 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 260 MB - Released: 2021-01-15 - Data updated: 2026-08-05 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/eureka-viewer/id1532773030/reviews.md ## What is Eureka Viewer? Eureka! is an eReader designed exclusively for reading and annotating digitally protected pdf documents, and viewing videos distributed through ArchiMedia Advantage, Inc. platforms. The Eureka! eReader provides fast and secure access to your digitally protected pdf materials distributed via ArchiMedia Advantage, Inc. platforms. To ensure the application enhances the use of your licensed materials, it is optimized to display statistical and mathematical content . For use online or offline (limited terms), Eureka! simulates traditional study techniques like highlighting, underlining, margin notes (comments) and provides the option to enter your own notes (by page). All of these tools are automatically captured in an annotation index for easy reference and sync across compatible devices! Document printing, if authorized, is available exclusively through use of a Eureka! desktop offline player; printing from web browsers or mobile devices is not available. With quick load times, responsive page navigation, and viewing options such as zoom, single page, and side by side, Eureka! is ideal for intensive study and will quickly become your preferred tool for consuming digitally published content at home and on-the-go. ## Key features - Secure access to protected PDFs - Highlighting and underlining - Margin notes and custom page notes - Automatic annotation index - Cross-device syncing - Optimized for statistical/mathematical content - Offline access (limited terms) ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/eureka-viewer/id1532773030/reviews.md ### 1/5 — barely functional as a modern day app *2026-01-25* i mean, why is the scrolling so laggy? why the UI so unintuitive? why marking up documents so tricky? simply unusable. deleted. ### 1/5 — Glitchy, looks like it hasn’t been updated in a decade *2025-12-30* When scrolling down, it reverts back to the page I viewed when I last logged in. Speaking of logging in, why is there no option for Face ID or “remember me”? I have to type my login manually. The scrolling is so rough and glitchy. Not smooth at all. When I want to scroll down, I deliberately have to make sure my finger goes straight up and not diagonal at all. Overall, the app just feels so old. It makes the associated companies who use this app look bad. ### 1/5 — Terrible app *2025-09-20* I have everything about this app. Flawed in every way I can think of. ### 1/5 — Garbage. *2024-04-24, version 1.2.2* I would have never used it if I have had an alternative app offered by Actuary website ### 1/5 — Constant crashing and offline mode doesnt work *2022-08-24* Gets stuck and crashes all the time, fails to load documents , whether connected to wifi or not, but offline mode is especially unreliable. the website barely works too. Never using this again, will always opt for print option in the future ### 3/5 — Document issues *2022-06-17* The app was nice at first, but now every time I login it only shows me one document, and I can’t access any of the other documents on my account ### 1/5 — Terrible *2022-02-05, version 1.2.1* Consistently crashes ### 1/5 — Nightmare *2022-01-21, version 1.2.0* I used on iPad, it keeps crashing and every time it crashed it took more than 30 minutes to show up pages, it gets stuck at syncing notes and I could not open this garbage app offline. Tons of my study tome wasted. ### 3/5 — Offline mode *2021-11-29* Works great on Wifi, but crashes in offline mode continually ## Frequently asked questions about Eureka Viewer ### What is Eureka Viewer used for? Eureka Viewer is an eReader designed exclusively for reading and annotating digitally protected PDF documents distributed through ArchiMedia Advantage, Inc. platforms. It provides secure access and tools like highlighting and note-taking. ### Does Eureka Viewer support offline reading? Yes, Eureka Viewer supports offline reading for limited terms. This allows you to access your licensed materials even without an internet connection, though some functionalities might be restricted. ### How does Eureka Viewer handle annotations? Eureka Viewer allows users to highlight, underline, and add margin notes (comments) to documents. It also provides the option to enter your own notes by page. All annotations are automatically captured in an index for easy reference. ### Can I print documents from Eureka Viewer? Document printing is available exclusively through the use of a Eureka! desktop offline player, if authorized. Printing from web browsers or mobile devices is not supported. ### What kind of content is Eureka Viewer optimized for? Eureka Viewer is optimized to display statistical and mathematical content. This makes it an ideal tool for intensive study of academic materials. ### What devices is Eureka Viewer available on? Eureka Viewer is available on iPhone, iPad, and iPod. It is designed to provide a seamless reading experience across these Apple devices. ### How often is Eureka Viewer updated? The latest version of Eureka Viewer is 1.2.4, last updated on February 24, 2026. While this indicates a recent update, the frequency of future updates is not specified. ### What is the user rating for Eureka Viewer? Eureka Viewer has a rating of 2.9 stars from 9 ratings. This suggests that while some users find it useful, there may be areas for improvement based on user feedback. ## Version history (last 5 releases) ### 1.2.5 — 2026-04-24 Introducing video functionality! Eureka now displays video content from your seminars in addition to documents. - Download up to 20 videos for offline viewing - Resume where you left off - Subtitle and playback speed preferences are remembered - Stability and performance improvements ### 1.2.4 — 2026-02-24 Improved performance and optimization. Added stylus support. ### 1.2.3 — 2025-12-09 Updated for newer OS versions. ### 1.2.2 — 2022-09-12 1.2.2 Annotation file corruption Fix ### 1.2.1 — 2022-02-02 Offline Crash upon Application Start Fix Uploading of Annotations Fix Document List Rendering Issue Fix ## Apps similar to Eureka Viewer | App | Rating | Price | Category | | --- | --- | --- | --- | | [St. John's U Connect](https://appshunter.io/ios/app/st-johns-u-connect/id1623710314) | 2.1 (25) | Free | Education | | [R Programming Compiler](https://appshunter.io/ios/app/r-programming-compiler/id1158038782) | 3.5 (93) | Free | Education | | [Squarecap Mobile](https://appshunter.io/ios/app/squarecap-mobile/id1135608580) | 4.3 (9) | Free | Education | | [Kaplan Schweser](https://appshunter.io/ios/app/kaplan-schweser/id1365731917) | 1.8 (36) | Free | Education | | [Institutes Course Companion](https://appshunter.io/ios/app/institutes-course-companion/id6739631525) | 1.3 (31) | Free | Education | | [Columbia SPS Engage](https://appshunter.io/ios/app/columbia-sps-engage/id1624616558) | 4.8 (74) | Free | Education | ## Related topics [eureka math](https://appshunter.io/ios/topics/eureka-math) · [ucsf eureka research](https://appshunter.io/ios/topics/ucsf-eureka-research) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-05.*