OVERDUE is a trip planning, trip registration and check-in service, also incorporating offline maps, equipment checklist tool and geographically targeted safety messaging.

After you register your trip plan securely online, your emergency contacts will be alerted and sent a copy of your trip plan if you do not check-in before your chosen “alert time”. The trip plan initially provides your emergency contacts the information they need to check if you are safe. If they cannot confirm you are safe, they are then able to forward your trip plan to emergency services to initiate a search/rescue operation.

Trip plans can be optionally shared to social media or directly to contacts via SMS/email. This allows friends and family members to view your trip plan before you set out and then follow your progress using the app’s in-built tracking feature (contingent on a data connection being available to update your online trip plan).

OVERDUE’s messaging system is designed to function worldwide and supports messaging to contacts across international boundaries. The user interface has in-built support for different languages.

OVERDUE has access to a library of high-quality maps that can be downloaded for offline use in the backcountry. The map library contains both purchasable and free maps. OpenStreetMap is used for the default map background. “Map search” helps you identify the appropriate paper map for your trip – still considered a necessity in this age of technology.

OVERDUE is available as a monthly subscription, and includes a 30-day free trial period. Some specialty maps (detailed topo etc.) are only accessible by in-app purchase. E-Map purchases are usable within the app (navigation mode only) regardless of subscription status.

OVERDUE is the safety net that every outdoor recreationalist should have.
Let them know before you go!

Terms and Conditions:

What’s New

Version 2.0.5

Minor bug fixes


S2 App Development Ltd
140.9 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
This app may use your location even when it isn't open, which can decrease battery life.
In-App Purchases
  1. Trip Plan Registration $2.49
  2. Tri-Cities Hiking/Biking e-Map $8.99
  3. Golden Ears Hiking/Biking eMap $8.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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