We monitor 175 App Store storefronts to answer one question —

Is 有渔 - 翻转课堂 censored by Apple?

Gone.

有渔 - 翻转课堂 is gone from every App Store storefront we test. It was last seen available on Apr 4, 2021.

1,878 tests on record·last checked 8 days ago

Why it is unavailable

Five things can put an app out of one App Store. Each is weighed below against what can be seen from outside — open a card for the reasoning.

  • A government or a court demanded itPossible

    and Apple complied. Apple publishes a count of these per country each year and never says which apps they were. Apple's 2025 App Store Transparency Report

  • Apple applied a rule, unaskedPossible

    either its own review guidelines, or its own reading of a local law, with nobody having demanded anything. This is the largest category in Apple's own removal figures by a wide margin, and it covers distribution permits as well as content — Apple kept a free Bible app out of mainland China in 2021 for want of one. Apple's 2025 App Store Transparency Report

  • The developer withheld itPossible

    freely, or under legal advice of their own, or because Apple's guidelines require that kind of app to be limited to certain countries. Switching a country off is easy for a developer to do in Apple's own tools: it needs no new version of the app, and it leaves no public trace other than the app being unavailable.

  • Something brokeUnlikely

    a rejected update, a lapsed certificate, a payment or licensing problem, a mistake nobody has got round to noticing.

  • A local rule about paying for itRuled out

    gambling licences, financial rules, tax — the kind of law that governs a transaction. Apple can obey every one of them by refusing the payment, which is why this is the only restriction we would accept and the only one that cannot touch a free app.

    • It is free, so Apple sells nothing here.
How this is weighed, and what it cannot tell you

Weighed from the evidence under each card, not from a model. There is no published figure for how Apple's removals divide up, so these are ordered words rather than percentages. For scale on the same-day counts: across the whole record an app leaves a storefront with fewer than two others, so a dozen at once is not a dozen coincidences.

None of this is certain, and a citation does not make it so: Apple naming a Chinese agency tells you what Apple said, not everything that happened. What can be said is that the readings alone cannot separate these five — a developer switching off a country and a government ordering it removed arrive at Apple's catalogue looking identical — and that nobody has ever measured how they divide across the App Store. The one careful study of the question was done on Google's store, using an error message Apple does not emit.

Apple publishes no record of which apps are unavailable in which of its App Stores. For the removals it makes on a government's demand it publishes the agency and the law behind every one — 2,045 of the 166,899 apps it removed during 2025 — and never which app. Where a reason reaches the public at all, it is usually because a developer chose to say so. Apple's App Store Transparency Report

Know of a statement, notice or order we have missed? Tell us →

有渔 - 翻转课堂

Developer: Youyu Education Technology Co., Ltd. · Category: Education · Released: May 16, 2014 · Rating: 0.5★

View in App Store ↗
0stores where available
161stores where blocked
6.96Bpeople behind the block
161of 175 stores tested
1,878tests on record

Other Education apps missing from India

Everything missing from India →

Life of this app

  1. May 16, 2014Released on the App Store
  2. Feb 22, 2019First tested by AppleCensorship
  3. Apr 4, 2021Last seen available anywhere
  4. Jun 26, 2021Gone from 161 storefronts
  5. Sep 10, 2026Most recent test

Testing history

One column per month, every month from the first reading to the last. Height follows how many readings we took that month; red is the share of them that found the app unavailable. An empty month is one nobody tested.

2019-022026-09

Found availableFound unavailable

Availability by storefront

Every storefront we test, current status first. Data is a measurement, not a promise: each row carries its own date.

Test now
AlbaniaALUnavailableJul 14, 20224 years ago
AlgeriaDZUnavailableApr 7, 20218 days ago
AnguillaAIUnavailableMar 21, 20214 years ago
Antigua & BarbudaAGUnavailableNov 4, 20204 years ago
ArgentinaARUnavailableJul 20, 20233 years ago
ArmeniaAMUnavailableJun 30, 202212 months ago
AustriaATUnavailableJul 4, 20242 years ago
AzerbaijanAZUnavailableJun 10, 20263 months ago
BahamasBSUnavailableJul 19, 20227 months ago
BahrainBHUnavailableNov 19, 20202 years ago
BarbadosBBUnavailableMay 21, 20214 years ago
BelarusBYUnavailableMay 1, 20222 years ago
BelgiumBEUnavailableOct 6, 20213 years ago
BelizeBZUnavailableMay 9, 20233 years ago
BermudaBMUnavailableDec 10, 20202 years ago
BhutanBTUnavailableNov 4, 20204 years ago
BoliviaBOUnavailableMay 3, 20206 months ago
Bosnia & HerzegovinaBAUnavailableNov 27, 20224 years ago
BotswanaBWUnavailableJul 31, 20222 years ago
BrazilBRUnavailableMay 29, 20224 years ago
British Virgin IslandsVGUnavailableMay 3, 20203 years ago
BruneiBNUnavailableMay 4, 202115 months ago
Burkina FasoBFUnavailableApr 8, 20212 years ago
CambodiaKHUnavailableNov 19, 20202 years ago
CameroonCMUnavailableOct 30, 20227 months ago
CanadaCAUnavailableDec 9, 20202 years ago
Cape VerdeCVUnavailableJun 10, 20213 years ago
Cayman IslandsKYUnavailableDec 17, 20202 months ago
ChadTDUnavailableFeb 17, 20242 years ago
ChileCLUnavailableOct 19, 20219 months ago
China (Mainland)CNUnavailableApr 7, 20215 months ago
ColombiaCOUnavailableFeb 20, 20267 months ago
Costa RicaCRUnavailableSep 7, 202512 months ago
Côte d’IvoireCIUnavailableNov 2, 20222 years ago
CroatiaHRUnavailableOct 22, 20202 years ago
CyprusCYUnavailableMay 15, 20242 years ago
CzechiaCZUnavailableMar 22, 20222 years ago
DominicaDMUnavailableMay 4, 20233 years ago
Dominican RepublicDOUnavailableNov 24, 20202 years ago
DR CongoCDUnavailableJul 14, 20223 years ago
EgyptEGUnavailableMay 3, 20204 years ago
El SalvadorSVUnavailableJan 17, 20222 years ago
EstoniaEEUnavailableApr 20, 20212 years ago
EswatiniSZUnavailableOct 13, 20229 months ago
FijiFJUnavailableApr 7, 20212 years ago
FinlandFIUnavailableDec 9, 20203 years ago
FranceFRUnavailableDec 12, 20212 years ago
GabonGAUnavailableJun 30, 20224 years ago
GambiaGMUnavailableDec 7, 20202 years ago
GeorgiaGEUnavailableDec 25, 202213 months ago
GermanyDEUnavailableJun 25, 20242 years ago
GhanaGHUnavailableMar 25, 20214 years ago
GreeceGRUnavailableDec 2, 20202 years ago
GrenadaGDUnavailableOct 19, 20212 years ago
GuatemalaGTUnavailableApr 26, 20214 years ago
Guinea-BissauGWUnavailableNov 11, 20203 years ago
GuyanaGYUnavailableApr 7, 20213 years ago
HondurasHNUnavailableDec 16, 20233 years ago
Hong KongHKUnavailableDec 20, 20206 months ago
HungaryHUUnavailableNov 16, 20213 years ago
IcelandISUnavailableOct 26, 20204 years ago
IndiaINUnavailableMay 2, 20212 years ago
IndonesiaIDUnavailableApr 15, 20214 months ago
IrelandIEUnavailableMay 3, 20208 months ago
IsraelILUnavailableDec 2, 20209 months ago
ItalyITUnavailableOct 6, 20233 years ago
JamaicaJMUnavailableDec 5, 20213 years ago
JapanJPUnavailableNov 18, 20204 years ago
JordanJOUnavailableMay 4, 20214 months ago
KazakhstanKZUnavailableFeb 28, 20214 years ago
KenyaKEUnavailableApr 11, 202115 days ago
KuwaitKWUnavailableNov 4, 20202 years ago
KyrgyzstanKGUnavailableNov 16, 20202 years ago
LaosLAUnavailableJun 26, 20212 years ago
LatviaLVUnavailableJan 3, 20222 years ago
LebanonLBUnavailableApr 9, 20222 years ago
LiberiaLRUnavailableJul 22, 20213 years ago
LibyaLYUnavailableMay 21, 20242 years ago
LithuaniaLTUnavailableJun 30, 20214 years ago
LuxembourgLUUnavailableJun 9, 20263 months ago
MacaoMOUnavailableJun 5, 20232 years ago
MadagascarMGUnavailableApr 8, 202113 months ago
MalawiMWUnavailableAug 11, 20222 years ago
MalaysiaMYUnavailableJul 18, 20224 years ago
MaliMLUnavailableApr 29, 20212 years ago
MaltaMTUnavailableMar 25, 20214 years ago
MauritaniaMRUnavailableJan 12, 20252 years ago
MauritiusMUUnavailableFeb 25, 20213 years ago
MexicoMXUnavailableMay 21, 20212 years ago
MicronesiaFMUnavailableOct 8, 20204 years ago
MoldovaMDUnavailableApr 15, 20212 years ago
MongoliaMNUnavailableNov 16, 20213 years ago
MontenegroMEUnavailableAug 5, 20233 years ago
MontserratMSUnavailableJun 30, 20214 months ago
MoroccoMAUnavailableAug 13, 20224 years ago
MozambiqueMZUnavailableApr 27, 20213 years ago
Myanmar (Burma)MMUnavailableJul 8, 20233 years ago
NamibiaNAUnavailableFeb 13, 20252 years ago
NauruNRUnavailableJun 24, 20248 days ago
NepalNPUnavailableFeb 12, 20222 years ago
NetherlandsNLUnavailableJun 21, 20214 years ago
NicaraguaNIUnavailableApr 27, 20212 years ago
NigerNEUnavailableApr 8, 20212 years ago
NigeriaNGUnavailableApr 16, 20212 years ago
North MacedoniaMKUnavailableMay 1, 20212 years ago
NorwayNOUnavailableFeb 10, 20223 years ago
OmanOMUnavailableJul 15, 20213 years ago
PakistanPKUnavailableMar 23, 20233 years ago
PalauPWUnavailableApr 20, 20212 years ago
PanamaPAUnavailableMar 17, 20218 days ago
Papua New GuineaPGUnavailableSep 21, 20212 years ago
ParaguayPYUnavailableSep 21, 202115 days ago
PeruPEUnavailableJun 21, 20214 years ago
PhilippinesPHUnavailableMar 5, 20222 years ago
PolandPLUnavailableAug 24, 20215 months ago
PortugalPTUnavailableMay 3, 20203 years ago
QatarQAUnavailableNov 27, 20202 years ago
Republic of the CongoCGUnavailableApr 8, 20215 months ago
RussiaRUUnavailableOct 12, 20212 years ago
RwandaRWUnavailableJul 15, 20225 months ago
São Tomé & PríncipeSTUnavailableAug 3, 20233 years ago
Saudi ArabiaSAUnavailableDec 7, 20202 years ago
SenegalSNUnavailableMay 3, 20202 years ago
SerbiaRSUnavailableNov 13, 20224 years ago
SeychellesSCUnavailableDec 7, 20202 years ago
Sierra LeoneSLUnavailableMar 23, 20222 years ago
SlovakiaSKUnavailableDec 3, 20202 years ago
SloveniaSIUnavailableNov 27, 20202 years ago
Solomon IslandsSBUnavailableOct 12, 20212 years ago
South AfricaZAUnavailableMar 17, 20213 years ago
South KoreaKRUnavailableAug 14, 20224 years ago
SpainESUnavailableNov 11, 20203 years ago
Sri LankaLKUnavailableMar 11, 20222 years ago
St. Kitts & NevisKNUnavailableFeb 25, 20213 years ago
St. LuciaLCUnavailableMar 21, 20213 years ago
St. Vincent & GrenadinesVCUnavailableNov 23, 20213 years ago
SurinameSRUnavailableNov 18, 20212 years ago
SwedenSEUnavailableOct 21, 20203 years ago
TaiwanTWUnavailableMay 28, 20212 years ago
TajikistanTJUnavailableSep 14, 20213 years ago
TanzaniaTZUnavailableApr 27, 20218 months ago
ThailandTHUnavailableMay 3, 20202 years ago
TongaTOUnavailableJun 24, 20222 years ago
Trinidad & TobagoTTUnavailableAug 19, 20233 years ago
TunisiaTNUnavailableOct 21, 20202 years ago
TürkiyeTRUnavailableFeb 18, 20242 years ago
TurkmenistanTMUnavailableMay 3, 20204 years ago
Turks & Caicos IslandsTCUnavailableApr 20, 20214 years ago
UgandaUGUnavailableAug 12, 20224 years ago
UkraineUAUnavailableOct 10, 20202 years ago
United Arab EmiratesAEUnavailableDec 13, 20228 days ago
United KingdomGBUnavailableSep 14, 20212 years ago
United StatesUSUnavailableApr 7, 20218 days ago
UruguayUYUnavailableOct 15, 20202 years ago
UzbekistanUZUnavailableAug 14, 20212 years ago
VanuatuVUUnavailableNov 25, 20223 years ago
VenezuelaVEUnavailableJul 14, 20212 years ago
VietnamVNUnavailableSep 5, 20223 years ago
YemenYEUnavailableNov 16, 20204 years ago
ZambiaZMUnavailableOct 20, 20233 years ago
ZimbabweZWUnavailableOct 8, 20202 years ago
AfghanistanAFNot tested0
AngolaAONot tested0
AustraliaAUNot tested0
BeninBJNot tested0
BulgariaBGNot tested0
DenmarkDKNot tested0
EcuadorECNot tested0
IraqIQNot tested0
KosovoXKNot tested0
MaldivesMVNot tested0
New ZealandNZNot tested0
RomaniaRONot tested0
SingaporeSGNot tested0
SwitzerlandCHNot tested0

Testing asks Apple whether it will sell this app in that storefront, right now, by the same method the crawler has used since 2019. Your browser asks Apple directly, so the answer describes what Apple serves your connection — and if your browser cannot reach Apple at all, we ask on your behalf and say so. The result is a link: open it to see Apple's own answer and check ours. Readings are added to the record above; roughly a quarter of the readings taken each day come from people testing.

How we test

Availability is checked against Apple's own catalog servers for every storefront, the same way the App Store app asks. "Unavailable" means Apple's servers say the app cannot be offered in that country — it does not say who asked for the removal. Removals initiated by the developer and removals demanded by governments look the same from outside; the history and context on this page are how we tell them apart.