We monitor 175 App Store storefronts to answer one question —

Is StudyBlue censored by Apple?

Gone.

StudyBlue is gone from every App Store storefront we test. It was last seen available on Jul 4, 2020.

1,323 tests on record·last checked 15 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 itLikely

    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, unaskedLikely

    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 itUnlikely

    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 →

StudyBlue

Developer: StudyBlue, Inc. · Category: Education · Released: Aug 5, 2009 · Rating: 4.1★

View in App Store ↗
0stores where available
143stores where blocked
5.06Bpeople behind the block
143of 175 stores tested
1,323tests on record

Other Education apps missing from mainland China

Everything missing from mainland China →

Life of this app

  1. Aug 5, 2009Released on the App Store
  2. May 12, 2019First tested by AppleCensorship
  3. Jul 4, 2020Last seen available anywhere
  4. Jan 21, 2022Gone from 143 storefronts
  5. Sep 3, 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.

2019-052026-09

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 11, 20214 years ago
AlgeriaDZUnavailableOct 21, 20222 years ago
AngolaAOUnavailableAug 15, 20214 years ago
AnguillaAIUnavailableNov 8, 20223 years ago
Antigua & BarbudaAGUnavailableApr 12, 20242 years ago
ArmeniaAMUnavailableNov 13, 202510 months ago
AustriaATUnavailableMar 10, 20233 years ago
BahamasBSUnavailableOct 21, 20212 years ago
BahrainBHUnavailableJul 7, 20216 months ago
BarbadosBBUnavailableOct 1, 20211 year ago
BelarusBYUnavailableAug 31, 20213 years ago
BelgiumBEUnavailableMay 3, 202311 months ago
BelizeBZUnavailableAug 20, 20213 years ago
BeninBJUnavailableNov 18, 20213 years ago
BermudaBMUnavailableMar 5, 20223 years ago
BhutanBTUnavailableNov 29, 20213 years ago
BoliviaBOUnavailableOct 10, 20212 years ago
BotswanaBWUnavailableMar 19, 20234 years ago
BrazilBRUnavailableAug 6, 20233 years ago
British Virgin IslandsVGUnavailableNov 22, 20235 months ago
BruneiBNUnavailableSep 8, 20213 years ago
BulgariaBGUnavailableJul 7, 20218 months ago
Burkina FasoBFUnavailableDec 29, 20212 years ago
CameroonCMUnavailableOct 25, 20223 years ago
CanadaCAUnavailableFeb 21, 20222 years ago
Cape VerdeCVUnavailableJul 10, 20212 years ago
Cayman IslandsKYUnavailableDec 3, 20242 years ago
ChadTDUnavailableJun 21, 20233 years ago
ChileCLUnavailableSep 19, 20233 years ago
China (Mainland)CNUnavailableJul 7, 202114 months ago
ColombiaCOUnavailableApr 23, 20251 year ago
Costa RicaCRUnavailableOct 10, 20213 years ago
Côte d’IvoireCIUnavailableOct 28, 20224 years ago
CyprusCYUnavailableJan 21, 20224 years ago
CzechiaCZUnavailableSep 28, 20213 years ago
DenmarkDKUnavailableOct 31, 20212 years ago
DominicaDMUnavailableNov 5, 20224 years ago
Dominican RepublicDOUnavailableJun 13, 20222 years ago
DR CongoCDUnavailableSep 21, 20224 years ago
EcuadorECUnavailableApr 15, 20242 years ago
El SalvadorSVUnavailableMar 4, 20224 years ago
EstoniaEEUnavailableSep 24, 20211 year ago
EswatiniSZUnavailableMay 7, 20223 years ago
FijiFJUnavailableOct 16, 20214 years ago
FinlandFIUnavailableJan 23, 20234 years ago
FranceFRUnavailableJan 27, 20243 years ago
GabonGAUnavailableJul 27, 20224 years ago
GambiaGMUnavailableJul 10, 20217 months ago
GermanyDEUnavailableJul 7, 20215 months ago
GhanaGHUnavailableJan 24, 20222 years ago
GreeceGRUnavailableDec 24, 20212 years ago
GrenadaGDUnavailableJul 7, 202115 days ago
GuatemalaGTUnavailableMay 27, 20224 years ago
GuyanaGYUnavailableJul 20, 20212 years ago
HondurasHNUnavailableJul 23, 20233 years ago
Hong KongHKUnavailableDec 31, 20213 years ago
HungaryHUUnavailableFeb 6, 20267 months ago
IcelandISUnavailableDec 30, 202114 months ago
IndonesiaIDUnavailableMay 27, 20233 years ago
IraqIQUnavailableNov 20, 20233 years ago
ItalyITUnavailableOct 31, 20212 years ago
JamaicaJMUnavailableAug 10, 20213 years ago
JapanJPUnavailableJan 22, 20223 years ago
KazakhstanKZUnavailableNov 23, 20213 years ago
KenyaKEUnavailableJul 10, 20213 years ago
KuwaitKWUnavailableMar 15, 20242 years ago
KyrgyzstanKGUnavailableAug 21, 20242 years ago
LaosLAUnavailableJul 7, 20213 years ago
LatviaLVUnavailableJul 24, 20233 years ago
LebanonLBUnavailableAug 2, 20214 years ago
LiberiaLRUnavailableJul 11, 20212 years ago
LibyaLYUnavailableFeb 22, 20266 months ago
LithuaniaLTUnavailableJul 27, 20224 years ago
LuxembourgLUUnavailableAug 10, 20213 years ago
MacaoMOUnavailableJul 7, 20216 months ago
MadagascarMGUnavailableSep 8, 202111 months ago
MalawiMWUnavailableJun 8, 202515 months ago
MaldivesMVUnavailableDec 14, 20242 years ago
MaliMLUnavailableAug 31, 20212 years ago
MaltaMTUnavailableDec 2, 20214 years ago
MauritaniaMRUnavailableOct 3, 20212 years ago
MauritiusMUUnavailableOct 10, 20213 years ago
MexicoMXUnavailableNov 5, 20213 years ago
MoldovaMDUnavailableAug 2, 20212 years ago
MontenegroMEUnavailableNov 10, 20232 years ago
MontserratMSUnavailableJul 20, 20213 years ago
MoroccoMAUnavailableJul 4, 20224 years ago
MozambiqueMZUnavailableJul 17, 20213 years ago
NamibiaNAUnavailableSep 25, 20233 years ago
NauruNRUnavailableJul 12, 202415 days ago
NepalNPUnavailableAug 25, 20221 year ago
NetherlandsNLUnavailableAug 1, 20214 years ago
New ZealandNZUnavailableOct 20, 20224 years ago
NicaraguaNIUnavailableAug 19, 202110 months ago
NigerNEUnavailableApr 20, 202210 months ago
NigeriaNGUnavailableJul 18, 20214 years ago
North MacedoniaMKUnavailableAug 20, 20214 years ago
NorwayNOUnavailableMar 7, 20222 years ago
OmanOMUnavailableJul 7, 20213 years ago
PakistanPKUnavailableJul 19, 20232 years ago
PalauPWUnavailableJul 4, 20224 years ago
PanamaPAUnavailableOct 5, 202411 months ago
Papua New GuineaPGUnavailableAug 19, 20212 years ago
ParaguayPYUnavailableJul 7, 20213 years ago
PeruPEUnavailableMar 7, 20222 years ago
PolandPLUnavailableMar 31, 20222 years ago
PortugalPTUnavailableFeb 14, 20223 years ago
Republic of the CongoCGUnavailableFeb 25, 20243 years ago
RomaniaROUnavailableSep 21, 202231 days ago
RussiaRUUnavailableJul 14, 20212 years ago
RwandaRWUnavailableAug 25, 20224 years ago
São Tomé & PríncipeSTUnavailableJul 7, 20217 months ago
Saudi ArabiaSAUnavailableAug 6, 20233 years ago
SenegalSNUnavailableAug 1, 20214 years ago
Sierra LeoneSLUnavailableSep 28, 20212 years ago
SingaporeSGUnavailableAug 15, 20233 years ago
SlovakiaSKUnavailableApr 1, 20222 years ago
SloveniaSIUnavailableJul 17, 20213 years ago
Solomon IslandsSBUnavailableJul 18, 20214 years ago
South KoreaKRUnavailableJul 7, 20213 months ago
SpainESUnavailableJun 22, 20263 months ago
Sri LankaLKUnavailableAug 23, 20238 months ago
St. LuciaLCUnavailableNov 5, 20213 years ago
SurinameSRUnavailableAug 1, 20212 years ago
SwedenSEUnavailableOct 13, 20213 years ago
SwitzerlandCHUnavailableApr 4, 20251 year ago
TaiwanTWUnavailableSep 25, 20212 years ago
TajikistanTJUnavailableDec 30, 20213 years ago
TanzaniaTZUnavailableDec 23, 202112 months ago
ThailandTHUnavailableSep 9, 20212 years ago
TongaTOUnavailableMay 7, 20236 months ago
Trinidad & TobagoTTUnavailableAug 15, 20214 years ago
TunisiaTNUnavailableSep 15, 20224 years ago
Turks & Caicos IslandsTCUnavailableFeb 14, 20222 years ago
UkraineUAUnavailableMar 3, 20222 years ago
United Arab EmiratesAEUnavailableDec 11, 202215 days ago
United KingdomGBUnavailableJul 7, 20217 months ago
United StatesUSUnavailableJul 7, 202115 days ago
UruguayUYUnavailableSep 24, 20212 years ago
UzbekistanUZUnavailableJul 10, 20214 years ago
VietnamVNUnavailableMay 19, 20228 months ago
ZambiaZMUnavailableJan 5, 20243 years ago
ZimbabweZWUnavailableAug 30, 20224 years ago
AfghanistanAFNot tested0
ArgentinaARNot tested0
AustraliaAUNot tested0
AzerbaijanAZNot tested0
Bosnia & HerzegovinaBANot tested0
CambodiaKHNot tested0
CroatiaHRNot tested0
EgyptEGNot tested0
GeorgiaGENot tested0
Guinea-BissauGWNot tested0
IndiaINNot tested0
IrelandIENot tested0
IsraelILNot tested0
JordanJONot tested0
KosovoXKNot tested0
MalaysiaMYNot tested0
MicronesiaFMNot tested0
MongoliaMNNot tested0
Myanmar (Burma)MMNot tested0
PhilippinesPHNot tested0
QatarQANot tested0
SerbiaRSNot tested0
SeychellesSCNot tested0
South AfricaZANot tested0
St. Kitts & NevisKNNot tested0
St. Vincent & GrenadinesVCNot tested0
TürkiyeTRNot tested0
TurkmenistanTMNot tested0
UgandaUGNot tested0
VanuatuVUNot tested0
VenezuelaVENot tested0
YemenYENot 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.