Возможности ACR:
- поиск
- корзина для легкого восстановления удаленных записей
- автоматическое удаление старых (по прошествии времени) записей
- пометка записей как важные для исключения автоматического удаления
- множественный выбор, удаление, отправка
- ручная (в Pro-версии) запись разговора
- защита записей паролем
- много форматов: MP3, M4A, OGG, WAV, AMR, 3GP, FLAC, MP4
- возможность запуска задержанных записейg
- различные фильтры записи - по номеру, контакту, только чужие или только выбранные
- бесплатный сервис транскрипции (только для английского)
- возможность поделиться частью записи
- доступ по Wi-Fi для бэкапа
- запись передачи между устройствами
- облачная загрузка (в Pro-версии) в эл.почту, Gmail, Google Drive, OneDrive, Dropbox, WebDAV, FTP и WebHooks

Некоторые телефоны не поддерживают нормальную запись разговоров: это зависит от возможностей различных чипсетов/процессоров или версий Андроид конкретной модели телефона.

Важно: Перед записью звонков в какой-либо стране обязательно ознакомьтесь с местными законами и неукоснительно их соблюдайте.

Важно! Если качество записи вас не устраивает (на некоторых аппаратах может быть плохо слышно собеседника), не используйте параллельно с ACR другие аналогичные программы, пробуйте разные аудиоформаты, чтобы найти наилучший вариант. Некоторые смартфоны должным образом не поддерживают запись телефонного разговора - это связано с возможностями различных чипсетов и процессоров, на которых они построены.

- возможность начать запись в середине разговора
- интеграция с Dropbox
- интеграция с Google Drive
- автоматическая отправка email
- автоудаление коротких записей
и др.

33.3
Cloud services rewritten from scratch. You must add your favourite service again. There are some changes and new services. Please test and report any issues or crashes. See https://nllapps.com/common/cloud2/ for more information.
Keep Recording Prompt screen improved.
Fixed issues with dark theme.
AutoClean feature re-written and requires re enabling.
33.2
Bug fixes and improvements
33.1
Cloud services rewritten from scratch. You must add your favourite service again. There are some changes and new services. Please test and report any issues or crashes. See https://nllapps.com/common/cloud2/ for more information.
Keep Recording Prompt screen improved.
Fixed issues with dark theme.
AutoClean feature re-written and requires re enabling.
v24.5
- Added Transcription for English in partnership with Otter. Currently only available in select countries. We are hoping to cover most English speaking countries by the end of 2017
- Added Audio editor to cut/trim ACR recordings.
- Added in app help documentation.
- Refactored cloud upload file names to include direction of the call. See help documentation.
- Fixed crash on Android O.
24.4
- Added Audio editor to cut/trim ACR recordings.
- Added in app help documentation.
- Refactored cloud upload file names to include direction of the call. See help documentation.
- Fixed crash on Android O.
23.3
- Pause option for certain formats on manual mode on Android 7
- Pending uploads under Cloud service to manually upload failed recordings
- Ability detect and avoid Wi-Fi calls. It is technically impossible to record Wi-Fi calling on 99.99% of phones
v22.1
ACR now supports call recording almost all Android 6 and 7 phones.
21.3
- Support for Android 7 on many devices
20.1
- Support for Android 7 on many devices
v18.7
- New Dark theme. See general settings to enable it
- New Support for iCloud emails for AutoEmail
- Lots of bug fixes
18.5
- New recording menu
- New media player
- New sort by contact name option
- New cloud naming format where you can choose how cloud uploads named
- Possible fix for call recording not stopping on certain phones
18.4
- New recording menu
- New media player
- New sort by contact name option
- New cloud naming format where you can choose how cloud uploads named
- Possible fix for call recording not stopping on certain phones
17.8
Support for most Android 6 phones. If ACR fails to record, try our new "Fix issues" menu to apply known settings.
17.5
- Support for many Android 6 phones! Including Sony Xperia Z 2/3/4/5 And Samsung S5/Note4. Set audio source to MIC and recording format to M4A (not MP4), AMR, WAV, OGG or FLAC
- Thank you for bearing with us while we were working on this.
- We have rushed this update so there might be some bugs! Please report issues
17.3
- This is a bug fix update.
- Android 6 call recording issues ONLY on CERTAIN phone models:
We are still working on it. Due to limitations of Android 6, it is not possible to simply start call recording. There seems to a way and we are constantly trying to achieve it.
- Unfortunately we don't have magic wand to learn a function that is not publicly available. We will continue to research
v16.7
- Auto recording audio source has been added. If selected ACR will decide which audio source to use depending on the phone model and brand
- Added ability to use SD card with App Folder workaround. See https://bitbucket.org/copluk/acr/issues/524 to learn how to use SD card on ACR
- ACR no longer tries to show available storage on the path it saves recordings, it confused a lot of people. Instead it shows size of the recordings
- Bug fixes related to Cloud services
16.5
- Call recording support for HTC 9/8. Just set Audio source to VOICE_COMMUNICATION.
A huge thanks to skvalex developer of CallRecorder for their tip
- Possible workaround for issues with latest Motorola phones. Set Audio source to MIC, Recording format to WAV or OGG and Audio Gain to 20dB under Recording settings
- Re-organised Recording settings menu
- Select option on the context menu and long tap
- Fix for Android 6 sharing crash
- Lots of bug fixes
16.3
- Bug fixes and improvements to Cloud services
16.1
- Fixed issues with Auto email
16.0
YOU NEED TO RE-LINK CLOUD SERVICES
- We are sorry for constant updates few people received during last 3 days.
- Cloud services completely rewritten. We have added upload notifications per service and more.
- Added Gmail OAUTH sync. No more insecure app warnings from Gmail. This only possible with 2 new permission requests. Please see explanation of permissions required at https://spam.com/IBVqhX
- Added Analytics opt-out choice

15.9
! YOU NEED TO RE-LINK CLOUD SERVICES !
- Another huge update.
- Cloud services completely rewritten and needs re linking. We have added upload notifications per service and revamped the menu
- Added Gmail OAUTH sync. No more insecure app warnings from Gmail. This only possible with 2 new permission requests.
- Added Analytics opt-out choice
- Lots of small changes and bug fixes

15.6
Fixed bugs created on 15.3
Added Android 6 compatibility
Previously:
This is a big update we've been working on since July. You should see better performance and subtle but useful changes including changes to contact icons and how calls registered.
Please use contact email from within ACR menu to send your feedback

v15.3
This update fixes an issue with OneDrive Authentication
Previously
Native support for 64 bit devices
Recording listing backend completely re-written for better performance and handling large recording lists
Memory usage should be reduced almost by half!
Search now searches notes too
Sort by date
Sync for Dropbox service is rewritten and requires re-linking
Issues with certain WebDAV servers fixed
Cloud FTP client now supports paths
Recording delay for incoming calls is set to 2 seconds

14.8
Native support for 64 bit devices
Bug fixes

14.2
Huge update! Please report any crash or issue
Recording listing backend completely re-written for better performance and handling large recording lists
Memory usage should be reduced almost by half!
Search now searches notes too
Sort by date
Sync for Dropbox service is rewritten and will require re-linking
Issues with certain WebDAV servers fixed
Cloud FTP client now supports paths so you can use ftp://ftp.mydomain.com:21/path
Default recording delay for incoming calls is set to 2 seconds

11.9
- Web Access to download recordings over the air.
- Just connect to a Wi-Fi network and go to Cloud Services and select Web Access.
- This new feautre requires new permisison called ACCESS_WIFI_STATE because ACR needs to know if you are connected to a Wi-Fi network
- Bug fixes

11.8
Changed Google Play Services due to issues with Google Drive API. If you were using Google Drive Sync, please remove ACR, reboot your phone and reinstall ACR. Then re-link Google Drive
ACR should now use less memory
11.7
- Recording audio gain!
- Ability to set audio source on Bluetooth
- New cloud service FTP sync.
- “Disabled” mode for incoming and outgoing recording filters
11.2-11.5
- Recording audio gain! You can now increase volume of the recording audio. Only available for certain formats such as OGG, FLAC and WAV
- Ability to set audio source on Bluetooth, especially helpful when you are in the car. Just set Bluetooth audio to MIC
- New cloud service FTP sync. You can use your own FTP server for sync. FTPS is supported too “Disabled” mode for incoming and outgoing recording filters
- More fixes

11.1
- A lot of bug fixes.
- As well as fix for cloud sync service and auto enabling issues
Previously
- Brand new Android 5 interface!

С марта 2019 года, Гугл поменял условия и теперь:
Не пускает в Плей Маркет приложения, которые запрашивают доступ к списку вызовов, и поэтому версия с Маркета не будет показывать номер звонящего. Не важно, какой у вас Андроид.
На Android 9 запись с линии* заблокирована для сторонних программ. Пока решения нет. Разве что откат на Android 8.
Разработчик сделал вариант ACR - unChained где работает отображение номеров, запись (на 9-м - с микрофона, если вам повезло) и лицензия.

Мод новой версии от Balatan и на всякий случай предыдущая версия unChained, где работает отображение номеров.
Mod Info:
• Pro features unlocked - no additional key needed;
• Drive Cloud works;
• This version of ACR still has call log permission;
• Disabled / Removed unwanted Permissions + Receivers and Services;
• Analytics / Crashlytics disabled.
В каталоге "Android 2.3+" находятся старые версии, работающие на Android 2.3+ и Android 4.0.3+.

Android 4.4.x (KitKat)
Чтобы научить программу писать на флешку External SD на КитКат (Android 4.4x):
- создать на внешней карте (External SD) каталоги Android\data\ (они уже могут быть там), а в них каталог com.nll.acr.
- указать путь на него в настройках Call Recorder - ACR. Рут при этом не требуется.

Забросить файл на девайс в любое место и любым файлменеджером под Андройд (к примеру ES проводник) произвести его установку, кликнув по файлу (В настройках безопасности девайса должна стоять галка "Неизвестные источники").
Чтобы избежать ошибки при записи:
Установите приложение, откройте и дайте все разрешения.(Если первый раз ставите). Перезагрузите устройство. Возможно потребуется удалить ранее установленную версию.