Trust and verification
Verified hashes, stronger trust profiles, and lower-risk releases rise faster in the shortlist.
Ranked decision page
210 active apps
whoBIRD
Use this track when you want safer, fresher, or leaner substitutes for a specific Android app.
210 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
EstudiaTAI
EstudiaTAI is worth comparing against whoBIRD when you want a similar category fit with a footprint around 7.7 MB.
EstudiaTAI is an app for practicing multiple-choice tests for the Spanish AGE IT Assistant exams. リリース概要: 開発者: Naritsumi | 最新バージョン: 1.0.10 | カテゴリ: Science & Ed...
Priority score: 76
Trust score: 90
Risk: 低リスク
Dangerous permissions: 0
Size: 7.7 MB
1 versions tracked
#2
Glosdalen
Glosdalen is worth comparing against whoBIRD when you want a similar category fit with a footprint around 3.7 MB.
Glosdalen for Android (Science & Education) with version history and verified package details. リリース概要: パッケージ: com.glosdalen.app | カテゴリ: Science & Education | 開発者...
Priority score: 76
Trust score: 90
Risk: 低リスク
Dangerous permissions: 0
Size: 3.7 MB
1 versions tracked
#3
PlugBrain
PlugBrain is worth comparing against whoBIRD when you want a similar category fit with a footprint around 4.3 MB.
PlugBrain is an Android app in Science & Education with a clean, verified release timeline. リリース概要: 更新日: 2000-03-15 | ターゲット SDK 35 | 開発者: Mohammed-Said Belaid | A...
Priority score: 76
Trust score: 90
Risk: 低リスク
Dangerous permissions: 0
Size: 4.3 MB
1 versions tracked
#4
Really Basic Vocab
Really Basic Vocab is worth comparing against whoBIRD when you want a similar category fit with a footprint around 9.9 MB.
A closer look at Really Basic Vocab: release details and update history in Science & Education. リリース概要: 更新日: 2001-06-08 | ターゲット SDK 36 | パッケージ: de.herrmann_enge...
Priority score: 76
Trust score: 90
Risk: 低リスク
Dangerous permissions: 0
Size: 9.9 MB
1 versions tracked
#5
Retherm
Retherm is worth comparing against whoBIRD when you want a similar category fit with a footprint around 5.2 MB.
明確なバージョン コンテキストを持つ検証済みのミラーから選択します。. リリース概要: 開発者: Dan Brown | カテゴリ: Science & Education | 最新バージョン: 2.0.3 | パッケージ: me.danb....
Priority score: 76
Trust score: 90
Risk: 低リスク
Dangerous permissions: 0
Size: 5.2 MB
1 versions tracked
#6
Thermocouples
Thermocouples is worth comparing against whoBIRD when you want a similar category fit with a footprint around 6.0 MB.
A closer look at Thermocouples: release details and update history in Science & Education. リリース概要: カテゴリ: Science & Education | 最新バージョン: 4.0.3 | ターゲット SDK 36...
Priority score: 76
Trust score: 90
Risk: 低リスク
Dangerous permissions: 0
Size: 6.0 MB
1 versions tracked
#7
TopoSuite
TopoSuite is worth comparing against whoBIRD when you want a similar category fit with a footprint around 3.8 MB.
TopoSuite for Android (Science & Education) with version history and verified package details. リリース概要: 最小 SDK 29 | ターゲット SDK 34 | カテゴリ: Science & Education | 開発...
Priority score: 76
Trust score: 90
Risk: 低リスク
Dangerous permissions: 0
Size: 3.8 MB
1 versions tracked
#8
WaDoku
WaDoku is worth comparing against whoBIRD when you want a similar category fit with a footprint around 4.8 MB.
WaDoku for Android (Science & Education) with version history and verified package details. リリース概要: ターゲット SDK 34 | サイズ: 4.8 MB | 最新バージョン: 3.2.0 | カテゴリ: Sc...
Priority score: 76
Trust score: 90
Risk: 低リスク
Dangerous permissions: 0
Size: 4.8 MB
1 versions tracked
#9
CTU Menza
CTU Menza is worth comparing against whoBIRD when you want a similar category fit with a footprint around 4.5 MB.
CTU Menza is an Android app in Science & Education with a clean, verified release timeline. リリース概要: 最小 SDK 23 | ABI arm64-v8a, armeabi-v7a, x86, x86_64 | パッケージ: cz.la...
Priority score: 75
Trust score: 87
Risk: 低リスク
Dangerous permissions: 0
Size: 4.5 MB
1 versions tracked
#10
GPA Calculator
GPA Calculator is worth comparing against whoBIRD when you want a similar category fit with a footprint around 17.3 MB.
Browse versi リリース概要: カテゴリ: Science & Education. リリース概要: カテゴリ: Science & Education | ABI arm64-v8a | 最新バージョン: 1.0.5 | 開発者: Mohammed Ragheb | 最小 SDK...
Priority score: 75
Trust score: 90
Risk: 低リスク
Dangerous permissions: 0
Size: 17.3 MB
1 versions tracked
#11
MorbidMeter
MorbidMeter is worth comparing against whoBIRD when you want a similar category fit with a footprint around 5.0 MB.
MorbidMeter for Android (Science & Education) with version history and verified package details. リリース概要: パッケージ: org.epstudios.morbidmeter | ターゲット SDK 35 | 最新バー...
Priority score: 74
Trust score: 84
Risk: 低リスク
Dangerous permissions: 1
Size: 5.0 MB
1 versions tracked
#12
Wuxia Learn - Learn Chinese
Wuxia Learn - Learn Chinese is worth comparing against whoBIRD when you want a similar category fit with a footprint around 10.7 MB.
Wuxia Learn - Learn Chinese for Android (Science & Education) with version history and verified package details. リリース概要: カテゴリ: Science & Education | サイズ: 10.7 MB | パ...
Priority score: 74
Trust score: 87
Risk: 低リスク
Dangerous permissions: 0
Size: 10.7 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 whoBIRD?
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.