Trust and verification
Verified hashes, stronger trust profiles, and lower-risk releases rise faster in the shortlist.
Ranked decision page
31 active apps
Orion Viewer - Pdf & Djvu
Use this track when you want safer, fresher, or leaner substitutes for a specific Android app.
31 active apps
Privacy guardrails first
Fresh releases matter
How this track ranks apps
These pages are not alphabetical lists. Each track emphasizes a different decision priority.
Release freshness
More recent releases usually rank better because users need options that are still maintained.
Footprint and install size
Smaller packages score better when the track is sensitive to storage, bandwidth, or device overhead.
Ranked options
Ordered using trust, risk, footprint, freshness, and category fit signals.
#1
Myne: Download & Read eBooks
Myne: Download & Read eBooks is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 6.0 MB.
Track updat 릴리스 요약: 최소 SDK 26. 릴리스 요약: 최소 SDK 26 | 카테고리: Ebook Reader | 패키지: com.starry.myne | 크기: 6 MB | ABI arm64-v8a, armeabi-v7a, x86, x86_64 | 업데이트...
Priority score: 70
Trust score: 90
Risk: 낮은 위험
Dangerous permissions: 0
Size: 6.0 MB
1 versions tracked
#2
LightNovelReader
LightNovelReader is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 4.7 MB.
LightNovelReader is an Android app in Ebook Reader with a clean, verified release timeline. 릴리스 요약: 최신 버전: 1.1.4 | 패키지: indi.dmzz_yyhyy.lightnovelreader | ABI arm64-v8...
Priority score: 68
Trust score: 84
Risk: 낮은 위험
Dangerous permissions: 1
Size: 4.7 MB
1 versions tracked
#3
Ichaival
Ichaival is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 4.3 MB.
버전 컨텍스트가 명확한 검증된 미러 중에서 선택하세요. 릴리스 요약: ABI arm64-v8a, armeabi-v7a, x86, x86_64 | 패키지: com.utazukin.ichaival | 대상 SDK 35 | 최신 버전: 1.9.4 | 카테...
Priority score: 66
Trust score: 87
Risk: 낮은 위험
Dangerous permissions: 0
Size: 4.3 MB
Release freshness: 6132일 전
1 versions tracked
#4
MuPDF mini
MuPDF mini is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 15.6 MB.
MuPDF mini for Android (Ebook Reader) with version history and verified package details. 릴리스 요약: 업데이트됨: 2001-07-22 | 개발자: Artifex Software LLC | 카테고리: Ebook Reade...
Priority score: 62
Trust score: 81
Risk: 낮은 위험
Dangerous permissions: 1
Size: 15.6 MB
1 versions tracked
#5
MuPDF viewer
MuPDF viewer is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 15.7 MB.
MuPDF supports PDF 1.7 with transparency, encryption, hyperlinks, annotations, searching, form editing and more. 릴리스 요약: 패키지: com.artifex.mupdf.viewer.app | 업데이트됨: 20...
Priority score: 62
Trust score: 81
Risk: 낮은 위험
Dangerous permissions: 1
Size: 15.7 MB
1 versions tracked
#6
OpenComicVine
OpenComicVine is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 4.7 MB.
OpenComicVine for Android (Ebook Reader) with version history and verified package details. 릴리스 요약: 카테고리: Ebook Reader | 패키지: org.proninyaroslav.opencomicvine | 개발자...
Priority score: 58
Trust score: 69
Risk: 중간 위험
Dangerous permissions: 0
Size: 4.7 MB
1 versions tracked
#7
Book's Story
Book's Story is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 26.6 MB.
버전 컨텍스트가 명확한 검증된 미러 중에서 선택하세요. 릴리스 요약: 최신 버전: 1.8.0 | 개발자: Acclorite | ABI arm64-v8a, armeabi-v7a, x86, x86_64 | 대상 SDK 36 | 업데이트됨: 2000-...
Priority score: 54
Trust score: 72
Risk: 중간 위험
Dangerous permissions: 0
Size: 26.6 MB
1 versions tracked
#8
ProseReader
ProseReader is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 12.4 MB.
A closer look at ProseReader: release details and update history in Ebook Reader. 릴리스 요약: 카테고리: Ebook Reader | 대상 SDK 34 | 크기: 12.4 MB | 패키지: timur.prose | 최신 버...
Priority score: 54
Trust score: 72
Risk: 중간 위험
Dangerous permissions: 0
Size: 12.4 MB
1 versions tracked
#9
venera
venera is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 17.1 MB.
A closer look at venera: release details and update history in Ebook Reader. 릴리스 요약: 패키지: com.github.wgh136.venera | 크기: 17.1 MB | 대상 SDK 36 | 최소 SDK 24 | ABI x86_64...
Priority score: 54
Trust score: 72
Risk: 중간 위험
Dangerous permissions: 0
Size: 17.1 MB
1 versions tracked
#10
Kotatsu
Kotatsu is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 13.4 MB.
A closer look at Kotatsu: release details and update history in Ebook Reader. 릴리스 요약: 패키지: org.koitharu.kotatsu | 개발자: Koitharu | 대상 SDK 36 | ABI arm64-v8a, armeabi-v...
Priority score: 53
Trust score: 69
Risk: 중간 위험
Dangerous permissions: 0
Size: 13.4 MB
1 versions tracked
#11
LxReader APK 다운로드 v0.8.6 (fdroid) | Ebook Reader
LxReader APK 다운로드 v0.8.6 (fdroid) | Ebook Reader is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 19.4 MB.
gitlab.coolreader_ng.lxreader.fdroid . 릴리스 요약: ABI arm64-v8a, armeabi-v7a, x86, x86_64 | 최신 버전: 0.8.6 (fdroid) | 개발자: Aleksey Chernov | 패키지: io.gitlab.coolreader_ng...
Priority score: 53
Trust score: 69
Risk: 중간 위험
Dangerous permissions: 0
Size: 19.4 MB
1 versions tracked
#12
Pepper&Carrot Reader
Pepper&Carrot Reader is worth comparing against Orion Viewer - Pdf & Djvu when you want a similar category fit with a footprint around 5.4 MB.
Pepper&Carrot Reader for Android (Ebook Reader) with version history and verified package details. 릴리스 요약: 패키지: nightlock.peppercarrot | 대상 SDK 34 | 크기: 5.4 MB | 업데...
Priority score: 52
Trust score: 69
Risk: 중간 위험
Dangerous permissions: 0
Size: 5.4 MB
1 versions tracked
Questions users ask before choosing
Short answers for the trade-offs behind each library track.
When should I use alternatives pages for Orion Viewer - Pdf & Djvu?
Use this track when you already know the app you want to replace and need practical substitutes quickly.
What decides the order on an alternatives page?
The ordering favors safer trust context, fresher releases, cleaner permission signals, and useful differentiation from the current pick.
What is the main trade-off in alternatives pages?
The goal is not to find the most popular app overall, but the most credible replacement for the specific app you started from.
Explore another decision track
Switch lenses without leaving the category or app research flow.
55 best-of pages
Best Of
Use this track when you want the strongest all-around shortlist for a category, not just a single app swap.
55 privacy pages
Privacy
Use this track when permission minimization, risk context, and verification clarity matter more than raw popularity.
55 lightweight pages
Lightweight
Use this track when you need smaller installs and lower overhead without dropping trust context entirely.