We monitor 175 App Store storefronts to answer one question —

Is DETU F4 censored by Apple?

Gone.

DETU F4 is gone from every App Store storefront we test. It was last seen available on Oct 20, 2021.

1,617 tests on record·last checked 14 hours 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

    • Photo and video apps in the United States are unavailable at 3%, near the 5% for everything there, which cuts neither way.
    • Apple reports 1,213 government-ordered removals in Russia for 2025, naming none of them.
  • 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

    • Photo and video apps in the United States are unavailable at 3%, near the 5% for everything there, which cuts neither way.
  • 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.

    • Gone for 3 years.
  • 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 →

DETU F4

Developer: Zhejiang Detu Internet Co., Ltd. · Category: Photo & Video · Released: Sep 12, 2016 · Rating: 1.2★

View in App Store ↗
0stores where available
141stores where blocked
4.89Bpeople behind the block
141of 175 stores tested
1,617tests on record

Other Photo and video apps missing from mainland China

Everything missing from mainland China →

Life of this app

  1. Sep 12, 2016Released on the App Store
  2. Apr 27, 2019First tested by AppleCensorship
  3. Oct 20, 2021Last seen available anywhere
  4. Jul 12, 2023Gone from 141 storefronts
  5. Sep 17, 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.

2019-042026-09

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
AfghanistanAFUnavailableSep 24, 20242 years ago
AlbaniaALUnavailableApr 27, 20232 years ago
AlgeriaDZUnavailableFeb 3, 20239 months ago
AngolaAOUnavailableFeb 3, 202311 months ago
AnguillaAIUnavailableAug 3, 202510 months ago
Antigua & BarbudaAGUnavailableMar 31, 20231 year ago
ArgentinaARUnavailableMay 28, 20242 years ago
ArmeniaAMUnavailableMar 17, 202311 months ago
AustraliaAUUnavailableMay 31, 20241 year ago
AustriaATUnavailableFeb 3, 20237 months ago
AzerbaijanAZUnavailableFeb 3, 20233 months ago
BarbadosBBUnavailableOct 1, 20242 years ago
BelarusBYUnavailableFeb 3, 20233 months ago
BelgiumBEUnavailableFeb 6, 20233 months ago
BelizeBZUnavailableJul 26, 20242 years ago
BeninBJUnavailableMar 25, 20232 years ago
BoliviaBOUnavailableMar 7, 20242 years ago
Bosnia & HerzegovinaBAUnavailableJun 7, 202311 months ago
BotswanaBWUnavailableFeb 3, 202324 days ago
BrazilBRUnavailableMar 6, 20232 years ago
BruneiBNUnavailableJan 2, 20269 months ago
BulgariaBGUnavailableMar 31, 20242 years ago
Burkina FasoBFUnavailableMay 1, 202414 months ago
CambodiaKHUnavailableAug 1, 202313 months ago
CameroonCMUnavailableFeb 4, 20234 years ago
CanadaCAUnavailableMar 22, 20266 months ago
Cape VerdeCVUnavailableMay 11, 20243 months ago
ChileCLUnavailableFeb 3, 20239 months ago
China (Mainland)CNUnavailableFeb 3, 20233 months ago
ColombiaCOUnavailableMay 18, 202314 months ago
Côte d’IvoireCIUnavailableJul 23, 20233 months ago
CroatiaHRUnavailableJul 12, 20233 years ago
CyprusCYUnavailableFeb 3, 202314 hours ago
DenmarkDKUnavailableJul 7, 202316 months ago
Dominican RepublicDOUnavailableFeb 3, 202314 hours ago
EgyptEGUnavailableSep 15, 202511 months ago
El SalvadorSVUnavailableMay 27, 20233 years ago
EstoniaEEUnavailableApr 24, 20242 years ago
EswatiniSZUnavailableMay 20, 20264 months ago
FijiFJUnavailableFeb 3, 20234 months ago
FinlandFIUnavailableJan 7, 20243 years ago
FranceFRUnavailableMar 1, 20252 years ago
GambiaGMUnavailableJul 11, 20233 years ago
GeorgiaGEUnavailableJun 18, 202310 months ago
GermanyDEUnavailableMar 20, 20251 year ago
GhanaGHUnavailableDec 31, 20232 years ago
GreeceGRUnavailableAug 25, 202624 days ago
GrenadaGDUnavailableMar 19, 20246 months ago
GuatemalaGTUnavailableJun 15, 20263 months ago
Guinea-BissauGWUnavailableFeb 3, 202340 days ago
Hong KongHKUnavailableMay 30, 202510 months ago
HungaryHUUnavailableJan 1, 20269 months ago
IcelandISUnavailableFeb 3, 20237 days ago
IndonesiaIDUnavailableFeb 3, 20237 months ago
IraqIQUnavailableAug 17, 20242 months ago
IrelandIEUnavailableFeb 3, 202311 months ago
IsraelILUnavailableFeb 3, 20239 months ago
JamaicaJMUnavailableAug 24, 20242 years ago
JordanJOUnavailableFeb 3, 20235 months ago
KazakhstanKZUnavailableAug 24, 202310 months ago
KenyaKEUnavailableFeb 3, 202335 days ago
KosovoXKUnavailableJul 24, 20232 years ago
KuwaitKWUnavailableSep 15, 20232 years ago
KyrgyzstanKGUnavailableJan 31, 20257 days ago
LaosLAUnavailableMay 19, 202525 hours ago
LatviaLVUnavailableJun 28, 20232 years ago
LebanonLBUnavailableJun 26, 20232 years ago
LiberiaLRUnavailableFeb 3, 20235 months ago
LithuaniaLTUnavailableFeb 3, 202310 months ago
LuxembourgLUUnavailableMar 1, 20234 years ago
MacaoMOUnavailableSep 25, 202512 months ago
MalawiMWUnavailableFeb 3, 202311 months ago
MalaysiaMYUnavailableFeb 3, 20231 year ago
MaliMLUnavailableMay 6, 202516 months ago
MaltaMTUnavailableJul 26, 20233 years ago
MauritaniaMRUnavailableMay 30, 202310 months ago
MauritiusMUUnavailableFeb 3, 20236 months ago
MexicoMXUnavailableJun 21, 20237 months ago
MicronesiaFMUnavailableJul 26, 20233 years ago
MoldovaMDUnavailableFeb 3, 20232 years ago
MongoliaMNUnavailableFeb 3, 20239 months ago
MontenegroMEUnavailableFeb 9, 20232 years ago
MontserratMSUnavailableFeb 3, 202316 months ago
MozambiqueMZUnavailableAug 26, 202312 months ago
Myanmar (Burma)MMUnavailableSep 18, 20232 years ago
NamibiaNAUnavailableAug 17, 20232 years ago
NauruNRUnavailableJun 24, 202414 hours ago
NepalNPUnavailableFeb 3, 20236 months ago
NetherlandsNLUnavailableMar 15, 20244 months ago
New ZealandNZUnavailableJun 27, 20242 years ago
NicaraguaNIUnavailableJun 9, 202316 months ago
North MacedoniaMKUnavailableJul 17, 202434 days ago
NorwayNOUnavailableMar 24, 20242 months ago
OmanOMUnavailableMay 5, 20233 years ago
PakistanPKUnavailableFeb 3, 20232 months ago
PalauPWUnavailableApr 20, 20233 years ago
Papua New GuineaPGUnavailableOct 29, 20233 years ago
ParaguayPYUnavailableMay 14, 20239 months ago
PeruPEUnavailableOct 4, 20242 years ago
PhilippinesPHUnavailableSep 23, 20242 years ago
PortugalPTUnavailableJun 7, 20233 years ago
QatarQAUnavailableDec 16, 20242 years ago
Republic of the CongoCGUnavailableFeb 3, 20232 months ago
RomaniaROUnavailableJun 14, 20233 years ago
RussiaRUUnavailableFeb 3, 20232 years ago
RwandaRWUnavailableJun 8, 20233 years ago
São Tomé & PríncipeSTUnavailableFeb 3, 20232 years ago
SenegalSNUnavailableOct 22, 20242 years ago
SeychellesSCUnavailableFeb 3, 20237 months ago
Sierra LeoneSLUnavailableSep 16, 20233 years ago
SingaporeSGUnavailableMay 24, 202440 days ago
SlovakiaSKUnavailableFeb 3, 202325 hours ago
SloveniaSIUnavailableSep 26, 20232 months ago
Solomon IslandsSBUnavailableNov 28, 20233 years ago
South AfricaZAUnavailableMay 2, 20233 years ago
South KoreaKRUnavailableJan 30, 202510 months ago
SpainESUnavailableOct 19, 20242 years ago
St. Kitts & NevisKNUnavailableFeb 3, 20232 months ago
St. LuciaLCUnavailableApr 11, 20232 months ago
St. Vincent & GrenadinesVCUnavailableNov 17, 20233 years ago
SurinameSRUnavailableMay 22, 20232 years ago
SwitzerlandCHUnavailableNov 21, 20232 years ago
TaiwanTWUnavailableApr 7, 20233 years ago
TanzaniaTZUnavailableAug 17, 20232 years ago
ThailandTHUnavailableFeb 3, 202334 days ago
TongaTOUnavailableMar 16, 20264 months ago
TunisiaTNUnavailableApr 22, 20232 years ago
TürkiyeTRUnavailableNov 12, 20232 years ago
Turks & Caicos IslandsTCUnavailableApr 13, 20265 months ago
UgandaUGUnavailableFeb 26, 20252 years ago
UkraineUAUnavailableFeb 3, 20232 years ago
United Arab EmiratesAEUnavailableFeb 3, 202314 hours ago
United KingdomGBUnavailableFeb 24, 20242 years ago
United StatesUSUnavailableFeb 3, 202314 hours ago
UruguayUYUnavailableFeb 24, 20232 years ago
UzbekistanUZUnavailableAug 2, 20235 months ago
VanuatuVUUnavailableOct 10, 202511 months ago
VenezuelaVEUnavailableNov 30, 20232 years ago
YemenYEUnavailableJan 17, 20248 months ago
ZambiaZMUnavailableJun 15, 202514 months ago
ZimbabweZWUnavailableJun 13, 20242 years ago
BahamasBSNot tested0
BahrainBHNot tested0
BermudaBMNot tested0
BhutanBTNot tested0
British Virgin IslandsVGNot tested0
Cayman IslandsKYNot tested0
ChadTDNot tested0
Costa RicaCRNot tested0
CzechiaCZNot tested0
DominicaDMNot tested0
DR CongoCDNot tested0
EcuadorECNot tested0
GabonGANot tested0
GuyanaGYNot tested0
HondurasHNNot tested0
IndiaINNot tested0
ItalyITNot tested0
JapanJPNot tested0
LibyaLYNot tested0
MadagascarMGNot tested0
MaldivesMVNot tested0
MoroccoMANot tested0
NigerNENot tested0
NigeriaNGNot tested0
PanamaPANot tested0
PolandPLNot tested0
Saudi ArabiaSANot tested0
SerbiaRSNot tested0
Sri LankaLKNot tested0
SwedenSENot tested0
TajikistanTJNot tested0
Trinidad & TobagoTTNot tested0
TurkmenistanTMNot tested0
VietnamVNNot 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.