We monitor 175 App Store storefronts to answer one question —

Is DUO Free Secure Messaging: Text Now via Encryption censored by Apple?

Gone.

DUO Free Secure Messaging: Text Now via Encryption is gone from every App Store storefront we test. It was last seen available on Oct 22, 2019.

1,546 tests on record·last checked 34 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

    • Privacy and security apps in the United States are unavailable at 1%, near the 5% for everything there, which cuts neither way.
    • 2 other apps left Mali the same day, Jun 13, 2021.
    • 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

  • 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 →

DUO Free Secure Messaging: Text Now via Encryption

Developer: netTALK.com, Inc. · Category: Social Networking · Released: Dec 13, 2012 · Rating: 2.5★

View in App Store ↗
0stores where available
155stores where blocked
6.62Bpeople behind the block
155of 175 stores tested
1,546tests on record

Other Privacy and security apps missing from India

Everything missing from India →

Life of this app

  1. Dec 13, 2012Released on the App Store
  2. Feb 26, 2019First tested by AppleCensorship
  3. Oct 22, 2019Last seen available anywhere
  4. Jun 25, 2021Gone from 155 storefronts
  5. Aug 15, 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.

2019-022026-08

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
AfghanistanAFUnavailableJun 9, 20232 years ago
AlgeriaDZUnavailableDec 1, 20193 months ago
AngolaAOUnavailableMar 14, 20203 years ago
AnguillaAIUnavailableMay 5, 20202 years ago
ArgentinaARUnavailableApr 8, 20242 years ago
ArmeniaAMUnavailableJul 19, 20242 years ago
AustraliaAUUnavailableNov 9, 20202 years ago
AustriaATUnavailableJun 25, 20212 years ago
AzerbaijanAZUnavailableJan 2, 20202 months ago
BahamasBSUnavailableDec 1, 20194 years ago
BahrainBHUnavailableJan 2, 20202 months ago
BarbadosBBUnavailableSep 27, 20213 years ago
BelarusBYUnavailableMar 22, 20222 years ago
BelgiumBEUnavailableMay 25, 20233 years ago
BelizeBZUnavailableNov 10, 20204 years ago
BeninBJUnavailableJan 2, 20203 months ago
BermudaBMUnavailableFeb 4, 20243 years ago
BhutanBTUnavailableOct 5, 20222 years ago
BoliviaBOUnavailableFeb 26, 202110 months ago
BotswanaBWUnavailableOct 12, 20213 years ago
BrazilBRUnavailableOct 12, 20213 years ago
British Virgin IslandsVGUnavailableDec 6, 20202 months ago
BruneiBNUnavailableSep 17, 20217 months ago
BulgariaBGUnavailableJun 12, 20227 months ago
Burkina FasoBFUnavailableMay 12, 20212 years ago
CambodiaKHUnavailableSep 27, 20213 years ago
CameroonCMUnavailableOct 26, 202234 days ago
CanadaCAUnavailableJan 2, 20202 years ago
Cape VerdeCVUnavailableJun 5, 20217 months ago
Cayman IslandsKYUnavailableOct 27, 20203 years ago
ChadTDUnavailableOct 6, 20202 years ago
China (Mainland)CNUnavailableDec 1, 20192 years ago
ColombiaCOUnavailableMar 14, 20203 years ago
Costa RicaCRUnavailableNov 1, 20203 years ago
Côte d’IvoireCIUnavailableOct 30, 20223 months ago
CroatiaHRUnavailableOct 16, 20203 years ago
CyprusCYUnavailableAug 14, 20202 years ago
DenmarkDKUnavailableDec 19, 20202 years ago
DominicaDMUnavailableDec 11, 20204 years ago
Dominican RepublicDOUnavailableJul 28, 20214 years ago
DR CongoCDUnavailableAug 16, 20225 months ago
EcuadorECUnavailableFeb 5, 20222 years ago
EgyptEGUnavailableApr 18, 20214 years ago
El SalvadorSVUnavailableApr 21, 20212 years ago
EstoniaEEUnavailableJul 18, 20218 months ago
EswatiniSZUnavailableOct 26, 20202 years ago
FijiFJUnavailableMar 24, 20216 months ago
FinlandFIUnavailableMar 2, 20234 years ago
GabonGAUnavailableAug 8, 20224 years ago
GambiaGMUnavailableJun 9, 20233 years ago
GeorgiaGEUnavailableJul 14, 20262 months ago
GermanyDEUnavailableAug 7, 202111 months ago
GhanaGHUnavailableFeb 1, 20223 years ago
GreeceGRUnavailableDec 6, 20202 years ago
GrenadaGDUnavailableDec 26, 20217 months ago
GuatemalaGTUnavailableMar 3, 20212 years ago
GuyanaGYUnavailableFeb 1, 20223 years ago
HondurasHNUnavailableApr 7, 20213 years ago
Hong KongHKUnavailableMay 25, 20212 years ago
HungaryHUUnavailableNov 9, 20202 years ago
IcelandISUnavailableSep 5, 20218 months ago
IndiaINUnavailableOct 14, 20202 years ago
IndonesiaIDUnavailableFeb 27, 20234 years ago
IrelandIEUnavailableJul 6, 20212 years ago
IsraelILUnavailableDec 1, 20192 months ago
ItalyITUnavailableJan 2, 20202 years ago
JamaicaJMUnavailableFeb 26, 20212 years ago
JapanJPUnavailableMay 14, 20243 months ago
JordanJOUnavailableMay 20, 20213 years ago
KazakhstanKZUnavailableOct 12, 20212 years ago
KuwaitKWUnavailableMar 20, 20222 years ago
KyrgyzstanKGUnavailableMay 4, 20213 years ago
LaosLAUnavailableMay 23, 20212 years ago
LatviaLVUnavailableMay 25, 20212 years ago
LebanonLBUnavailableDec 1, 20194 years ago
LiberiaLRUnavailableJul 14, 20214 years ago
LibyaLYUnavailableNov 18, 20222 years ago
LithuaniaLTUnavailableNov 22, 20203 years ago
LuxembourgLUUnavailableMay 20, 20214 years ago
MacaoMOUnavailableNov 19, 20212 years ago
MadagascarMGUnavailableMar 30, 20214 years ago
MalawiMWUnavailableFeb 15, 20223 years ago
MalaysiaMYUnavailableFeb 19, 20222 years ago
MaliMLUnavailableJun 13, 20212 years ago
MaltaMTUnavailableApr 27, 20213 years ago
MauritaniaMRUnavailableNov 19, 20218 months ago
MauritiusMUUnavailableJun 13, 20214 years ago
MicronesiaFMUnavailableJan 12, 20223 years ago
MoldovaMDUnavailableSep 27, 20213 years ago
MongoliaMNUnavailableJul 17, 20214 years ago
MontserratMSUnavailableFeb 2, 20243 years ago
MoroccoMAUnavailableJul 10, 20223 years ago
MozambiqueMZUnavailableOct 4, 20212 years ago
Myanmar (Burma)MMUnavailableMar 28, 20242 years ago
NauruNRUnavailableJun 23, 202434 days ago
NepalNPUnavailableOct 26, 20212 years ago
NetherlandsNLUnavailableMay 12, 20212 years ago
New ZealandNZUnavailableMay 30, 20214 years ago
NicaraguaNIUnavailableApr 7, 20219 months ago
NigerNEUnavailableMar 30, 20213 years ago
NigeriaNGUnavailableMay 4, 20213 years ago
North MacedoniaMKUnavailableApr 21, 20212 years ago
NorwayNOUnavailableOct 22, 20204 years ago
OmanOMUnavailableJun 2, 20233 years ago
PakistanPKUnavailableDec 7, 20202 years ago
PanamaPAUnavailableSep 27, 20213 years ago
Papua New GuineaPGUnavailableJul 22, 20212 years ago
ParaguayPYUnavailableJun 13, 20213 years ago
PeruPEUnavailableApr 3, 20212 years ago
PhilippinesPHUnavailableJun 5, 20212 years ago
PolandPLUnavailableAug 9, 20212 years ago
PortugalPTUnavailableApr 18, 20222 years ago
QatarQAUnavailableApr 18, 20233 years ago
Republic of the CongoCGUnavailableApr 29, 20212 years ago
RomaniaROUnavailableDec 7, 20204 years ago
RussiaRUUnavailableJul 14, 20212 years ago
RwandaRWUnavailableJul 5, 20223 years ago
São Tomé & PríncipeSTUnavailableJul 7, 20221 year ago
Saudi ArabiaSAUnavailableJun 2, 20242 years ago
SenegalSNUnavailableFeb 22, 20222 years ago
SerbiaRSUnavailableNov 11, 20222 years ago
SeychellesSCUnavailableDec 30, 20213 years ago
Sierra LeoneSLUnavailableMay 25, 20212 years ago
SingaporeSGUnavailableOct 16, 20224 years ago
SlovakiaSKUnavailableJan 2, 20202 years ago
Solomon IslandsSBUnavailableAug 7, 20212 years ago
South KoreaKRUnavailableJun 4, 20242 years ago
SpainESUnavailableApr 3, 20212 years ago
Sri LankaLKUnavailableDec 30, 20212 years ago
St. Kitts & NevisKNUnavailableSep 2, 20213 years ago
St. LuciaLCUnavailableSep 27, 20213 years ago
St. Vincent & GrenadinesVCUnavailableApr 13, 20213 years ago
SurinameSRUnavailableMar 24, 202114 months ago
SwedenSEUnavailableOct 26, 20203 years ago
SwitzerlandCHUnavailableAug 27, 20242 years ago
TajikistanTJUnavailableNov 22, 20233 years ago
TanzaniaTZUnavailableJan 20, 20222 years ago
TongaTOUnavailableJul 5, 20224 years ago
Trinidad & TobagoTTUnavailableApr 18, 20213 years ago
TunisiaTNUnavailableOct 16, 20203 years ago
TürkiyeTRUnavailableNov 22, 20208 months ago
TurkmenistanTMUnavailableJun 5, 20214 years ago
Turks & Caicos IslandsTCUnavailableJun 13, 20214 years ago
UgandaUGUnavailableOct 27, 20203 years ago
UkraineUAUnavailableOct 13, 20202 years ago
United Arab EmiratesAEUnavailableDec 22, 202234 days ago
United KingdomGBUnavailableJun 21, 20221 year ago
United StatesUSUnavailableDec 1, 201934 days ago
UruguayUYUnavailableFeb 21, 20222 years ago
UzbekistanUZUnavailableMay 30, 20213 years ago
VanuatuVUUnavailableNov 20, 20224 years ago
VenezuelaVEUnavailableMar 3, 20214 years ago
VietnamVNUnavailableJun 21, 20262 months ago
ZambiaZMUnavailableDec 25, 20232 years ago
ZimbabweZWUnavailableOct 6, 20203 years ago
AlbaniaALNot tested0
Antigua & BarbudaAGNot tested0
Bosnia & HerzegovinaBANot tested0
ChileCLNot tested0
CzechiaCZNot tested0
FranceFRNot tested0
Guinea-BissauGWNot tested0
IraqIQNot tested0
KenyaKENot tested0
KosovoXKNot tested0
MaldivesMVNot tested0
MexicoMXNot tested0
MontenegroMENot tested0
NamibiaNANot tested0
PalauPWNot tested0
SloveniaSINot tested0
South AfricaZANot tested0
TaiwanTWNot tested0
ThailandTHNot 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.