Castmo · Help & information

Privacy policy

Your fishing journal belongs to you. Here is what stays on your device, what Apple services process, and how to contact us.

Updated November 13, 2026

Who we are

Castmo is an iPhone fishing journal provided by Yoloful Limited. This policy covers the Castmo app and this website. For privacy questions, contact orion.hengxing@gmail.com.

Castmo has no account system, advertising SDK or third-party tracking analytics. We do not operate a server that receives your catch records, photos, voice audio or transcripts. This does not mean that Apple services, TestFlight or our website host process no information; those uses are explained below.

Your catches, photos and voice

Catch details, photos, optional fishing locations, weather snapshots and transcribed notes are stored in the app on your device. Speech is processed by Apple's on-device recognition services. Voice audio is used for input and is not kept as an audio recording.

Clear fields are filled using local rules. When available, Apple Intelligence processes complex descriptions and creates social captions on your device. Castmo does not send that content to an external language-model provider. You can review and edit generated text.

Local diagnostic logging is optional and off by default. Enabling it does not automatically upload a report. You choose whether to export and send a diagnostic file.

Permissions and Apple services

The microphone enables voice input, the camera enables catch photos, and Photos access enables the photo features you choose. Optional location permission places catches on your map and provides local weather. You can manage permissions in iOS Settings; denying a permission limits the associated feature.

Map display, place-name lookup and WeatherKit use Apple services. Place-name and weather requests may include coordinates, language and the requested forecast time range. These features require network access. Apple may also download system language or model resources before local speech and smart text features are ready.

Apple's handling of its services is governed by its own privacy information.

Apple privacy policy

TestFlight beta testing

When you use the TestFlight beta, Apple automatically collects crash logs and beta usage information and makes it available to us. Feedback you submit, including comments and attached screenshots, is also shared with us. This is separate from Castmo's local-only catch storage.

Apple states that joining only through a public invitation does not display your name or email to the developer. Feedback you choose to send may reveal contact information or personal content. Remove private locations and other details from screenshots before sending them.

We use beta reports to investigate issues and improve Castmo, not for advertising. We do not share TestFlight information with third parties. We use Apple's reporting tools; their retention periods apply, including one year for beta feedback and potentially longer for crash and usage data while issues are resolved.

TestFlight & Privacy

What you choose to share

Exporting records, saving an edited image to Photos, copying a caption or using the iOS share sheet sends or saves the content you select. The receiving app or service handles that content under its own policies. Check photos, location details and text before sharing.

We do not sell your personal information or use it for targeted advertising. If you email us, we receive your email address, message and any attachments through our email provider so that we can respond. Please send only the information needed to resolve your request.

This website

The website is hosted on Railway. Delivering and protecting the site requires technical request information, such as IP address, requested URL, browser information and request time, to be processed by the hosting infrastructure. Railway's service and log-retention settings govern infrastructure logs.

We do not add tracking analytics, advertising cookies or a signup form. Fonts, images and scripts are served with the website. External services are opened only when you follow a link, such as TestFlight, the App Store or an email link.

Railway privacy policy

Retention, deletion and your choices

Your local records remain until you delete them or remove the app's data. Use Settings → Privacy & Data to delete personal app data. We cannot recover a deleted journal from a developer server. Keep your own exports; Castmo does not provide cloud backup or cross-device sync, and its media directory is excluded from device backup.

Deleting data in Castmo does not delete copies already exported, saved in Photos, sent to others or included in third-party backups. Manage those copies in the relevant app or service. Removing the app does not delete earlier feedback held by Apple.

We retain support messages only as needed to handle the request, follow up on the issue and meet applicable legal obligations. You may ask us about access, correction or deletion of information you have sent us. Depending on your location, you may also have rights to portability, restriction or objection, and to complain to a relevant privacy authority. We cannot remotely access or edit your on-device journal.

Contact and policy updates

Email orion.hengxing@gmail.com for privacy questions or requests. Our hosting, email and Apple service providers may process information in countries other than yours; their published privacy terms describe their safeguards. We take reasonable steps to protect information, but no system can guarantee absolute security.

Castmo is not designed to solicit personal information from children. If a child has sent us personal information, a parent or guardian can contact us to request its removal.

We will update this page and its date when our practices change. Material changes will also be explained in the app or release information as appropriate.

Email Castmo about privacy

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