Trust and verification
Verified hashes, stronger trust profiles, and lower-risk releases rise faster in the shortlist.
Ranked decision page
210 件
Celestia
Use this track when you want safer, fresher, or leaner substitutes for a specific Android app.
210 件
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
EstudiaTAI
EstudiaTAI is worth comparing against Celestia when you want a similar category fit with a footprint around 7.7 MB.
EstudiaTAI Download APK v1.0.10 | Science & Education は Science & Education にリストされており、Naritsumi によって公開されています。このページはストアの概要.
Priority score: 76
Trust score: 92
Risk: 低リスク
Dangerous permissions: 0
Size: 7.7 MB
1 versions tracked
#2
GPA Calculator
GPA Calculator is worth comparing against Celestia when you want a similar category fit with a footprint around 17.3 MB.
GPA Calculator Download APK v1.0.5 | Science & Education は Science & Education にリストされており、Mohammed Ragheb によって公開されています。このページはスト.
Priority score: 76
Trust score: 92
Risk: 低リスク
Dangerous permissions: 0
Size: 17.3 MB
1 versions tracked
#3
Glosdalen
Glosdalen is worth comparing against Celestia when you want a similar category fit with a footprint around 3.7 MB.
Glosdalen Download APK v2.5.0 | Science & Education は Science & Education にリストされており、Daniel Freiermuth によって公開されています。このページはストア.
Priority score: 76
Trust score: 92
Risk: 低リスク
Dangerous permissions: 0
Size: 3.7 MB
1 versions tracked
#4
PlugBrain
PlugBrain is worth comparing against Celestia when you want a similar category fit with a footprint around 4.3 MB.
PlugBrain Download APK v1.5.4 | Science & Education は Science & Education にリストされており、Mohammed-Said Belaid によって公開されています。このページはスト.
Priority score: 76
Trust score: 92
Risk: 低リスク
Dangerous permissions: 0
Size: 4.3 MB
1 versions tracked
#5
Really Basic Vocab
Really Basic Vocab is worth comparing against Celestia when you want a similar category fit with a footprint around 9.9 MB.
Really Basic Vocab Download APK v3.4.9 | Science & Education は Science & Education にリストされており、Jonathan Herrmann-Engel によって公開されています。この.
Priority score: 76
Trust score: 92
Risk: 低リスク
Dangerous permissions: 0
Size: 9.9 MB
1 versions tracked
#6
Retherm
Retherm is worth comparing against Celestia when you want a similar category fit with a footprint around 5.2 MB.
Retherm Download APK v2.0.3 | Science & Education は Science & Education にリストされており、Dan Brown によって公開されています。このページはストアの概要をコ.
Priority score: 76
Trust score: 92
Risk: 低リスク
Dangerous permissions: 0
Size: 5.2 MB
1 versions tracked
#7
Thermocouples
Thermocouples is worth comparing against Celestia when you want a similar category fit with a footprint around 6.0 MB.
Thermocouples Download APK v4.0.3 | Science & Education は Science & Education にリストされており、Dan Brown によって公開されています。このページはストアの概.
Priority score: 76
Trust score: 92
Risk: 低リスク
Dangerous permissions: 0
Size: 6.0 MB
1 versions tracked
#8
TopoSuite
TopoSuite is worth comparing against Celestia when you want a similar category fit with a footprint around 3.8 MB.
TopoSuite Download APK v1.4.0-beta.5 | Science & Education は Science & Education にリストされており、HGdev によって公開されています。このページはストアの概要.
Priority score: 76
Trust score: 92
Risk: 低リスク
Dangerous permissions: 0
Size: 3.8 MB
1 versions tracked
#9
WaDoku
WaDoku is worth comparing against Celestia when you want a similar category fit with a footprint around 4.8 MB.
WaDoku Download APK v3.2.0 | Science & Education は Science & Education にリストされており、Paul Christian Sommerhoff によって公開されています。このページはス.
Priority score: 76
Trust score: 92
Risk: 低リスク
Dangerous permissions: 0
Size: 4.8 MB
1 versions tracked
#10
CTU Menza
CTU Menza is worth comparing against Celestia when you want a similar category fit with a footprint around 4.5 MB.
CTU Menza Download APK v1.4.8 | Science & Education は Science & Education にリストされており、Lasta Apps によって公開されています。このページはストアの概要を.
Priority score: 75
Trust score: 89
Risk: 低リスク
Dangerous permissions: 0
Size: 4.5 MB
1 versions tracked
#11
Wuxia Learn - Learn Chinese
Wuxia Learn - Learn Chinese is worth comparing against Celestia when you want a similar category fit with a footprint around 10.7 MB.
Wuxia Learn - Learn Chinese Download APK v1.4.7 | Science & Education は Science & Education にリストされており、Wuxialearn によって公開されています。このペー.
Priority score: 75
Trust score: 89
Risk: 低リスク
Dangerous permissions: 0
Size: 10.7 MB
1 versions tracked
#12
ForgetMeNot
ForgetMeNot is worth comparing against Celestia when you want a similar category fit with a footprint around 4.9 MB.
ForgetMeNot Download APK v1.9.0 | Science & Education は Science & Education にリストされており、Odnovolov Artem によって公開されています。このページはストア.
Priority score: 74
Trust score: 83
Risk: 低リスク
Dangerous permissions: 0
Size: 4.9 MB
1 versions tracked
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Questions users ask before choosing
Short answers for the trade-offs behind each library track.
When should I use alternatives pages for Celestia?
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.