Settings

Open settings from the More tab.

Language

The app supports Simplified Chinese, Traditional Chinese, English, German, Spanish, French, Japanese, Korean, and Brazilian Portuguese. The interface follows the selected app preference. The language of system permission alerts also depends on iOS and the app’s localized configuration.

Coordinate system

• WGS84: Raw GPS coordinates and the common standard for international geospatial data.
• GCJ-02: Commonly used by internet maps in mainland China.
• BD-09: The Baidu Maps coordinate system.

This setting changes display and copy results. It does not overwrite stored WGS84 source coordinates. When exchanging data, confirm the file format and the recipient’s expected system.

Units

• Distance: Metric (m, km), Imperial (ft, mi), or Aviation/Marine (nmi).
• Area: Metric (m², km²) or Imperial (ft², acre).
• Speed: Metric (km/h, m/s), Imperial (mph), or Aviation/Marine (knot).

Preferences apply automatically to relevant screens and summaries. Underlying values remain in consistent base units, so changing the display unit does not modify the original measurement.

Distance and area calculation

• Local Planar Approximation: Uses the system distance implementation and a local planar area approximation. Best for everyday, small-area use.
• Ellipsoidal Calculation: Uses a WGS84 ellipsoidal model and is better suited to large areas or stricter calculation requirements.

The setting affects both distance and area. Opening a record after switching algorithms recalculates its displayed summary with the new method.

Data and sync

The Data & Sync screen reports the iCloud account, record sync, and attachment sync status separately. iCloud sync is off by default.

Premium

Enabling iCloud sync requires an active Premium subscription. Once enabled, it is not turned off automatically if the subscription expires. See Premium Subscription.

1. Open More → Data & Sync.
2. Change Use iCloud to Sync Data and wait for existing attachments to finish migrating.
3. Close and reopen the app when prompted so the record sync setting can take effect.

When enabling sync, the app first uploads existing formal attachments to iCloud. When disabling it, the app first downloads complete local copies. If migration fails, the switch keeps its previous value; check your iCloud sign-in, iCloud Drive, and network, then tap Retry.

“Current Storage Mode” reports the record storage actually active for this launch. If the cloud record container cannot start, the app falls back to local mode and displays a notice.

Sync is not a backup

Sync can propagate edits and deletions to devices using the same private iCloud container. Export important data as a Pocket GPS package and keep a separate copy.

Feedback

Tap Submit Feedback under More → Feedback to open a configured mail app with a localized subject. Add the details in the message composer and send it yourself; Pocket GPS does not send the message automatically.

If no installed or configured app can handle email, Pocket GPS shows an alert. Set up a mail app, then try again.

The current installed app version appears at the bottom of the More screen.