We monitor 175 App Store storefronts to answer one question —

Is CompTIA Linux+ Exam Prep censored by Apple?

Gone.

CompTIA Linux+ Exam Prep is gone from every App Store storefront we test. It was last seen available on Oct 21, 2019.

1,722 tests on record·last checked 3 months 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

    • Education apps in the United States are unavailable at 4%, 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.
  • A local rule about paying for itPossible

    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 a paid app, so a rule about selling it could apply.
  • 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

    • Education apps in the United States are unavailable at 4%, 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 6 years.
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 →

CompTIA Linux+ Exam Prep

Developer: Double Bottom Line Partners · Category: Education · Paid app · Released: Aug 30, 2010 ·

View in App Store ↗
0stores where available
160stores where blocked
5.51Bpeople behind the block
160of 175 stores tested
1,722tests on record

Other Education apps missing from mainland China

Everything missing from mainland China →

Life of this app

  1. Aug 30, 2010Released on the App Store
  2. Feb 24, 2019First tested by AppleCensorship
  3. Oct 21, 2019Last seen available anywhere
  4. Aug 14, 2021Gone from 160 storefronts
  5. Jun 30, 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.

2019-022026-06

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
AfghanistanAFUnavailableAug 19, 20233 years ago
AlbaniaALUnavailableJan 1, 20202 years ago
AlgeriaDZUnavailableJun 6, 20233 years ago
AngolaAOUnavailableApr 19, 20224 years ago
AnguillaAIUnavailableAug 16, 20203 years ago
Antigua & BarbudaAGUnavailableMar 9, 20237 months ago
ArgentinaARUnavailableOct 27, 20213 years ago
ArmeniaAMUnavailableOct 25, 20213 years ago
AustraliaAUUnavailableMar 15, 20203 years ago
AustriaATUnavailableSep 3, 20224 years ago
AzerbaijanAZUnavailableMay 2, 20214 years ago
BahamasBSUnavailableAug 1, 20244 months ago
BahrainBHUnavailableDec 20, 20204 years ago
BarbadosBBUnavailableJun 23, 20213 years ago
BelarusBYUnavailableDec 2, 201910 months ago
BelgiumBEUnavailableOct 2, 20213 years ago
BelizeBZUnavailableAug 14, 20214 years ago
BeninBJUnavailableMay 12, 20233 years ago
BermudaBMUnavailableApr 7, 20214 years ago
BhutanBTUnavailableJul 26, 20233 years ago
BoliviaBOUnavailableSep 24, 20223 months ago
BrazilBRUnavailableDec 8, 20202 years ago
British Virgin IslandsVGUnavailableFeb 14, 20223 years ago
BulgariaBGUnavailableApr 2, 20224 years ago
Burkina FasoBFUnavailableOct 10, 20212 years ago
CambodiaKHUnavailableMay 28, 202213 months ago
CameroonCMUnavailableNov 8, 20224 years ago
CanadaCAUnavailableOct 2, 20213 years ago
Cape VerdeCVUnavailableJan 15, 202210 months ago
Cayman IslandsKYUnavailableJan 1, 20207 months ago
ChadTDUnavailableNov 28, 20233 years ago
ChileCLUnavailableDec 9, 20202 years ago
China (Mainland)CNUnavailableDec 2, 20196 months ago
Côte d’IvoireCIUnavailableNov 9, 202214 months ago
CroatiaHRUnavailableOct 16, 20204 years ago
CyprusCYUnavailableAug 16, 202014 months ago
CzechiaCZUnavailableDec 8, 20204 years ago
DenmarkDKUnavailableMar 15, 20202 years ago
DominicaDMUnavailableMay 18, 20214 years ago
Dominican RepublicDOUnavailableNov 14, 20213 years ago
DR CongoCDUnavailableAug 22, 20223 years ago
EcuadorECUnavailableDec 2, 201910 months ago
EgyptEGUnavailableFeb 25, 20222 years ago
El SalvadorSVUnavailableJul 14, 20212 years ago
EstoniaEEUnavailableSep 3, 20213 years ago
EswatiniSZUnavailableOct 10, 20212 years ago
FijiFJUnavailableMar 18, 20213 years ago
FinlandFIUnavailableOct 18, 20202 years ago
FranceFRUnavailableDec 16, 20259 months ago
GabonGAUnavailableJun 28, 20224 years ago
GeorgiaGEUnavailableApr 28, 20233 years ago
GermanyDEUnavailableNov 12, 20224 years ago
GhanaGHUnavailableMar 23, 20213 years ago
GreeceGRUnavailableSep 20, 20213 years ago
GrenadaGDUnavailableJun 6, 202113 months ago
GuatemalaGTUnavailableApr 29, 20222 years ago
Guinea-BissauGWUnavailableMar 15, 20202 years ago
GuyanaGYUnavailableApr 28, 20213 years ago
HondurasHNUnavailableAug 16, 202013 months ago
Hong KongHKUnavailableNov 24, 20213 years ago
HungaryHUUnavailableDec 2, 20199 months ago
IcelandISUnavailableJan 2, 20223 years ago
IndonesiaIDUnavailableOct 23, 20203 years ago
IraqIQUnavailableJun 6, 20242 years ago
IrelandIEUnavailableOct 11, 20204 months ago
ItalyITUnavailableOct 17, 20202 years ago
JamaicaJMUnavailableMar 13, 202116 months ago
JapanJPUnavailableJan 1, 20203 years ago
JordanJOUnavailableMar 23, 20213 years ago
KazakhstanKZUnavailableMay 21, 20214 years ago
KenyaKEUnavailableOct 19, 20203 years ago
KuwaitKWUnavailableAug 22, 20224 years ago
KyrgyzstanKGUnavailableDec 2, 201913 months ago
LaosLAUnavailableJul 4, 20213 years ago
LatviaLVUnavailableJan 22, 20223 years ago
LebanonLBUnavailableJan 1, 20204 months ago
LiberiaLRUnavailableOct 29, 20212 years ago
LibyaLYUnavailableApr 23, 20233 years ago
LithuaniaLTUnavailableMar 19, 20216 months ago
LuxembourgLUUnavailableApr 2, 20224 years ago
MacaoMOUnavailableApr 22, 20232 years ago
MadagascarMGUnavailableSep 30, 20213 years ago
MalawiMWUnavailableDec 19, 20204 years ago
MalaysiaMYUnavailableDec 10, 20202 years ago
MaldivesMVUnavailableNov 28, 20223 years ago
MaliMLUnavailableMay 30, 20214 years ago
MaltaMTUnavailableDec 2, 20214 years ago
MauritaniaMRUnavailableSep 18, 20218 months ago
MauritiusMUUnavailableMar 19, 202114 months ago
MexicoMXUnavailableDec 20, 20242 years ago
MicronesiaFMUnavailableJan 1, 20204 months ago
MoldovaMDUnavailableMar 10, 20212 years ago
MongoliaMNUnavailableAug 16, 20214 years ago
MontenegroMEUnavailableMay 11, 202516 months ago
MontserratMSUnavailableJul 16, 20212 years ago
MoroccoMAUnavailableAug 28, 20222 years ago
MozambiqueMZUnavailableJul 25, 20213 years ago
NamibiaNAUnavailableNov 12, 20213 years ago
NauruNRUnavailableAug 26, 20233 months ago
NepalNPUnavailableMar 27, 20212 years ago
NetherlandsNLUnavailableJun 19, 20233 years ago
New ZealandNZUnavailableJul 28, 20213 years ago
NicaraguaNIUnavailableMar 3, 20213 years ago
NigerNEUnavailableJul 25, 20213 years ago
NigeriaNGUnavailableJan 14, 20222 years ago
North MacedoniaMKUnavailableMar 20, 20233 years ago
NorwayNOUnavailableApr 2, 20233 years ago
OmanOMUnavailableOct 27, 20203 years ago
PakistanPKUnavailableMar 28, 20251 year ago
PalauPWUnavailableNov 9, 20224 years ago
PanamaPAUnavailableJul 10, 20213 years ago
Papua New GuineaPGUnavailableApr 28, 20212 years ago
ParaguayPYUnavailableOct 25, 20213 years ago
PeruPEUnavailableMay 16, 20213 years ago
PhilippinesPHUnavailableDec 20, 20202 years ago
PolandPLUnavailableMay 24, 20212 years ago
PortugalPTUnavailableOct 28, 20203 years ago
QatarQAUnavailableMar 15, 20202 years ago
Republic of the CongoCGUnavailableMay 30, 20213 months ago
RussiaRUUnavailableDec 3, 20202 years ago
RwandaRWUnavailableJul 4, 20224 years ago
São Tomé & PríncipeSTUnavailableApr 23, 20229 months ago
Saudi ArabiaSAUnavailableAug 31, 202513 months ago
SenegalSNUnavailableJun 3, 20242 years ago
SerbiaRSUnavailableNov 12, 20223 years ago
SeychellesSCUnavailableJul 10, 202115 months ago
Sierra LeoneSLUnavailableMay 28, 20212 years ago
SlovakiaSKUnavailableDec 9, 20203 years ago
SloveniaSIUnavailableJan 1, 20203 months ago
Solomon IslandsSBUnavailableAug 9, 20213 years ago
South AfricaZAUnavailableJan 14, 20224 years ago
SpainESUnavailableJul 13, 20242 years ago
Sri LankaLKUnavailableMar 18, 20212 years ago
St. Kitts & NevisKNUnavailableDec 29, 20241 year ago
St. LuciaLCUnavailableMar 10, 20213 years ago
St. Vincent & GrenadinesVCUnavailableOct 10, 20213 years ago
SurinameSRUnavailableMar 14, 20243 years ago
SwitzerlandCHUnavailableMar 7, 20214 years ago
TaiwanTWUnavailableDec 5, 20202 years ago
TajikistanTJUnavailableApr 7, 20213 years ago
TanzaniaTZUnavailableMar 7, 20213 years ago
ThailandTHUnavailableOct 14, 20232 years ago
TongaTOUnavailableJul 12, 20223 years ago
Trinidad & TobagoTTUnavailableMar 19, 20213 months ago
TunisiaTNUnavailableOct 16, 20204 years ago
TürkiyeTRUnavailableFeb 3, 20222 years ago
TurkmenistanTMUnavailableFeb 2, 20221 year ago
Turks & Caicos IslandsTCUnavailableDec 28, 20213 years ago
UgandaUGUnavailableOct 28, 20203 years ago
UkraineUAUnavailableJan 3, 20222 years ago
United Arab EmiratesAEUnavailableDec 2, 20223 months ago
United KingdomGBUnavailableOct 2, 20213 years ago
United StatesUSUnavailableDec 2, 20193 months ago
UruguayUYUnavailableJul 14, 202316 months ago
VanuatuVUUnavailableDec 24, 20233 years ago
VenezuelaVEUnavailableDec 2, 201910 months ago
VietnamVNUnavailableJul 1, 20213 years ago
YemenYEUnavailableDec 10, 20203 years ago
ZambiaZMUnavailableFeb 2, 20233 months ago
ZimbabweZWUnavailableOct 11, 20204 years ago
Bosnia & HerzegovinaBANot tested0
BotswanaBWNot tested0
BruneiBNNot tested0
ColombiaCONot tested0
Costa RicaCRNot tested0
GambiaGMNot tested0
IndiaINNot tested0
IsraelILNot tested0
KosovoXKNot tested0
Myanmar (Burma)MMNot tested0
RomaniaRONot tested0
SingaporeSGNot tested0
South KoreaKRNot tested0
SwedenSENot tested0
UzbekistanUZNot 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.