We monitor 175 App Store storefronts to answer one question —
Is linux操作系统学习宝典 - 编程服务器安全应用技术 censored by Apple?
linux操作系统学习宝典 - 编程服务器安全应用技术 is gone from every App Store storefront we test. It was last seen available on Aug 3, 2021.
473 tests on record·last checked 25 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 it
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
- News apps in the United States are unavailable at 3%, near the 5% for everything there, which cuts neither way.
- 3 other apps left mainland China the same day, Feb 15, 2023.
- Apple reports 1,213 government-ordered removals in Russia for 2025, naming none of them.
Apple applied a rule, unasked
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
- News apps in the United States are unavailable at 3%, near the 5% for everything there, which cuts neither way.
- 3 other apps left mainland China the same day, Feb 15, 2023.
The developer withheld it
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 broke
a rejected update, a lapsed certificate, a payment or licensing problem, a mistake nobody has got round to noticing.
- 3 other apps left mainland China the same day, Feb 15, 2023.
- Gone for 3 years.
A local rule about paying for it
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 →
linux操作系统学习宝典 - 编程服务器安全应用技术
Developer: juan sun · Category: News · Released: Dec 13, 2016 · Rating: 0.3★
Other News apps missing from mainland China
Life of this app
- Dec 13, 2016Released on the App Store
- Apr 24, 2019First tested by AppleCensorship
- Aug 3, 2021Last seen available anywhere
- Jun 7, 2024Gone from 70 storefronts
- Aug 25, 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.
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 | |||||
|---|---|---|---|---|---|
| AfghanistanAF | Unavailable | Jun 9, 2023 | 10 months ago | ||
| ArgentinaAR | Unavailable | Jun 22, 2025 | 15 months ago | ||
| ArmeniaAM | Unavailable | Aug 31, 2024 | 2 years ago | ||
| AustraliaAU | Unavailable | Mar 7, 2026 | 6 months ago | ||
| AzerbaijanAZ | Unavailable | Jan 2, 2025 | 2 years ago | ||
| BarbadosBB | Unavailable | Feb 15, 2023 | 2 years ago | ||
| BermudaBM | Unavailable | Aug 20, 2023 | 3 years ago | ||
| BhutanBT | Unavailable | Nov 24, 2024 | 6 months ago | ||
| British Virgin IslandsVG | Unavailable | Nov 25, 2025 | 10 months ago | ||
| Burkina FasoBF | Unavailable | Jul 29, 2025 | 14 months ago | ||
| CameroonCM | Unavailable | Jan 23, 2024 | 3 years ago | ||
| Cayman IslandsKY | Unavailable | Jan 21, 2025 | 15 months ago | ||
| ChadTD | Unavailable | Dec 21, 2024 | 2 years ago | ||
| China (Mainland)CN | Unavailable | Feb 15, 2023 | 2 months ago | ||
| ColombiaCO | Unavailable | Jun 7, 2024 | 25 days ago | ||
| Costa RicaCR | Unavailable | Jan 14, 2026 | 8 months ago | ||
| CyprusCY | Unavailable | Sep 23, 2023 | 2 years ago | ||
| CzechiaCZ | Unavailable | Jul 8, 2023 | 3 years ago | ||
| DR CongoCD | Unavailable | Aug 8, 2023 | 3 years ago | ||
| EgyptEG | Unavailable | Feb 15, 2023 | 29 days ago | ||
| El SalvadorSV | Unavailable | Sep 12, 2025 | 12 months ago | ||
| EswatiniSZ | Unavailable | Oct 28, 2023 | 3 years ago | ||
| FijiFJ | Unavailable | Nov 5, 2023 | 2 years ago | ||
| GuyanaGY | Unavailable | Apr 10, 2025 | 1 year ago | ||
| IndonesiaID | Unavailable | Feb 15, 2023 | 6 months ago | ||
| IraqIQ | Unavailable | May 7, 2025 | 16 months ago | ||
| IrelandIE | Unavailable | Nov 28, 2023 | 3 years ago | ||
| JamaicaJM | Unavailable | Mar 15, 2026 | 6 months ago | ||
| JordanJO | Unavailable | Feb 15, 2023 | 8 months ago | ||
| KazakhstanKZ | Unavailable | Nov 8, 2025 | 10 months ago | ||
| KyrgyzstanKG | Unavailable | Feb 18, 2023 | 4 years ago | ||
| LiberiaLR | Unavailable | Jan 23, 2024 | 3 years ago | ||
| MaliML | Unavailable | May 25, 2023 | 3 years ago | ||
| MauritaniaMR | Unavailable | Apr 30, 2024 | 37 days ago | ||
| MontenegroME | Unavailable | Nov 8, 2025 | 10 months ago | ||
| Myanmar (Burma)MM | Unavailable | Jun 28, 2023 | 3 years ago | ||
| NamibiaNA | Unavailable | Feb 15, 2023 | 2 months ago | ||
| NauruNR | Unavailable | May 20, 2024 | 25 days ago | ||
| NepalNP | Unavailable | Feb 15, 2023 | 2 years ago | ||
| NetherlandsNL | Unavailable | Feb 15, 2025 | 2 years ago | ||
| New ZealandNZ | Unavailable | Jan 21, 2024 | 3 years ago | ||
| NigeriaNG | Unavailable | Sep 11, 2024 | 13 months ago | ||
| North MacedoniaMK | Unavailable | Jun 12, 2024 | 2 years ago | ||
| OmanOM | Unavailable | Mar 13, 2025 | 13 months ago | ||
| PakistanPK | Unavailable | Aug 3, 2023 | 3 years ago | ||
| PanamaPA | Unavailable | Aug 31, 2024 | 2 years ago | ||
| PhilippinesPH | Unavailable | Feb 15, 2023 | 10 months ago | ||
| PortugalPT | Unavailable | Feb 16, 2025 | 2 years ago | ||
| RussiaRU | Unavailable | Feb 15, 2023 | 29 days ago | ||
| Saudi ArabiaSA | Unavailable | Sep 17, 2024 | 2 years ago | ||
| SenegalSN | Unavailable | Dec 1, 2025 | 10 months ago | ||
| SerbiaRS | Unavailable | Jan 15, 2025 | 2 years ago | ||
| Sierra LeoneSL | Unavailable | Jul 16, 2026 | 2 months ago | ||
| SlovakiaSK | Unavailable | May 2, 2025 | 1 year ago | ||
| SloveniaSI | Unavailable | Mar 5, 2026 | 6 months ago | ||
| SpainES | Unavailable | Jul 25, 2026 | 2 months ago | ||
| SwitzerlandCH | Unavailable | Oct 31, 2024 | 2 years ago | ||
| TaiwanTW | Unavailable | May 24, 2023 | 3 years ago | ||
| TongaTO | Unavailable | Jul 3, 2026 | 3 months ago | ||
| Trinidad & TobagoTT | Unavailable | Feb 15, 2023 | 2 years ago | ||
| TunisiaTN | Unavailable | Feb 15, 2023 | 6 months ago | ||
| TürkiyeTR | Unavailable | Dec 6, 2023 | 3 years ago | ||
| TurkmenistanTM | Unavailable | May 16, 2026 | 4 months ago | ||
| Turks & Caicos IslandsTC | Unavailable | May 8, 2024 | 2 years ago | ||
| UgandaUG | Unavailable | Aug 6, 2025 | 13 months ago | ||
| UkraineUA | Unavailable | Feb 15, 2023 | 2 years ago | ||
| United Arab EmiratesAE | Unavailable | Feb 15, 2023 | 25 days ago | ||
| United StatesUS | Unavailable | Feb 15, 2023 | 25 days ago | ||
| YemenYE | Unavailable | Feb 15, 2023 | 6 months ago | ||
| ZimbabweZW | Unavailable | Jun 9, 2024 | 2 years ago | ||
| AlbaniaAL | Not tested | — | — | 0 | |
| AlgeriaDZ | Not tested | — | — | 0 | |
| AngolaAO | Not tested | — | — | 0 | |
| AnguillaAI | Not tested | — | — | 0 | |
| Antigua & BarbudaAG | Not tested | — | — | 0 | |
| AustriaAT | Not tested | — | — | 0 | |
| BahamasBS | Not tested | — | — | 0 | |
| BahrainBH | Not tested | — | — | 0 | |
| BelarusBY | Not tested | — | — | 0 | |
| BelgiumBE | Not tested | — | — | 0 | |
| BelizeBZ | Not tested | — | — | 0 | |
| BeninBJ | Not tested | — | — | 0 | |
| BoliviaBO | Not tested | — | — | 0 | |
| Bosnia & HerzegovinaBA | Not tested | — | — | 0 | |
| BotswanaBW | Not tested | — | — | 0 | |
| BrazilBR | Not tested | — | — | 0 | |
| BruneiBN | Not tested | — | — | 0 | |
| BulgariaBG | Not tested | — | — | 0 | |
| CambodiaKH | Not tested | — | — | 0 | |
| CanadaCA | Not tested | — | — | 0 | |
| Cape VerdeCV | Not tested | — | — | 0 | |
| ChileCL | Not tested | — | — | 0 | |
| Côte d’IvoireCI | Not tested | — | — | 0 | |
| CroatiaHR | Not tested | — | — | 0 | |
| DenmarkDK | Not tested | — | — | 0 | |
| DominicaDM | Not tested | — | — | 0 | |
| Dominican RepublicDO | Not tested | — | — | 0 | |
| EcuadorEC | Not tested | — | — | 0 | |
| EstoniaEE | Not tested | — | — | 0 | |
| FinlandFI | Not tested | — | — | 0 | |
| FranceFR | Not tested | — | — | 0 | |
| GabonGA | Not tested | — | — | 0 | |
| GambiaGM | Not tested | — | — | 0 | |
| GeorgiaGE | Not tested | — | — | 0 | |
| GermanyDE | Not tested | — | — | 0 | |
| GhanaGH | Not tested | — | — | 0 | |
| GreeceGR | Not tested | — | — | 0 | |
| GrenadaGD | Not tested | — | — | 0 | |
| GuatemalaGT | Not tested | — | — | 0 | |
| Guinea-BissauGW | Not tested | — | — | 0 | |
| HondurasHN | Not tested | — | — | 0 | |
| Hong KongHK | Not tested | — | — | 0 | |
| HungaryHU | Not tested | — | — | 0 | |
| IcelandIS | Not tested | — | — | 0 | |
| IndiaIN | Not tested | — | — | 0 | |
| IsraelIL | Not tested | — | — | 0 | |
| ItalyIT | Not tested | — | — | 0 | |
| JapanJP | Not tested | — | — | 0 | |
| KenyaKE | Not tested | — | — | 0 | |
| KosovoXK | Not tested | — | — | 0 | |
| KuwaitKW | Not tested | — | — | 0 | |
| LaosLA | Not tested | — | — | 0 | |
| LatviaLV | Not tested | — | — | 0 | |
| LebanonLB | Not tested | — | — | 0 | |
| LibyaLY | Not tested | — | — | 0 | |
| LithuaniaLT | Not tested | — | — | 0 | |
| LuxembourgLU | Not tested | — | — | 0 | |
| MacaoMO | Not tested | — | — | 0 | |
| MadagascarMG | Not tested | — | — | 0 | |
| MalawiMW | Not tested | — | — | 0 | |
| MalaysiaMY | Not tested | — | — | 0 | |
| MaldivesMV | Not tested | — | — | 0 | |
| MaltaMT | Not tested | — | — | 0 | |
| MauritiusMU | Not tested | — | — | 0 | |
| MexicoMX | Not tested | — | — | 0 | |
| MicronesiaFM | Not tested | — | — | 0 | |
| MoldovaMD | Not tested | — | — | 0 | |
| MongoliaMN | Not tested | — | — | 0 | |
| MontserratMS | Not tested | — | — | 0 | |
| MoroccoMA | Not tested | — | — | 0 | |
| MozambiqueMZ | Not tested | — | — | 0 | |
| NicaraguaNI | Not tested | — | — | 0 | |
| NigerNE | Not tested | — | — | 0 | |
| NorwayNO | Not tested | — | — | 0 | |
| PalauPW | Not tested | — | — | 0 | |
| Papua New GuineaPG | Not tested | — | — | 0 | |
| ParaguayPY | Not tested | — | — | 0 | |
| PeruPE | Not tested | — | — | 0 | |
| PolandPL | Not tested | — | — | 0 | |
| QatarQA | Not tested | — | — | 0 | |
| Republic of the CongoCG | Not tested | — | — | 0 | |
| RomaniaRO | Not tested | — | — | 0 | |
| RwandaRW | Not tested | — | — | 0 | |
| São Tomé & PríncipeST | Not tested | — | — | 0 | |
| SeychellesSC | Not tested | — | — | 0 | |
| SingaporeSG | Not tested | — | — | 0 | |
| Solomon IslandsSB | Not tested | — | — | 0 | |
| South AfricaZA | Not tested | — | — | 0 | |
| South KoreaKR | Not tested | — | — | 0 | |
| Sri LankaLK | Not tested | — | — | 0 | |
| St. Kitts & NevisKN | Not tested | — | — | 0 | |
| St. LuciaLC | Not tested | — | — | 0 | |
| St. Vincent & GrenadinesVC | Not tested | — | — | 0 | |
| SurinameSR | Not tested | — | — | 0 | |
| SwedenSE | Not tested | — | — | 0 | |
| TajikistanTJ | Not tested | — | — | 0 | |
| TanzaniaTZ | Not tested | — | — | 0 | |
| ThailandTH | Not tested | — | — | 0 | |
| United KingdomGB | Not tested | — | — | 0 | |
| UruguayUY | Not tested | — | — | 0 | |
| UzbekistanUZ | Not tested | — | — | 0 | |
| VanuatuVU | Not tested | — | — | 0 | |
| VenezuelaVE | Not tested | — | — | 0 | |
| VietnamVN | Not tested | — | — | 0 | |
| ZambiaZM | Not tested | — | — | 0 |
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.