digitalfree (premium features $5–12/month for expanded archives)used in 5 side quests

Historical map overlay app

An app that layers old maps over your current GPS location so you can see what used to be where you're standing. Reveals demolished buildings, old street layouts, and previous land uses.

What to look for

  1. 1Multiple historical layers from different decades (not just one old map)
  2. 2Adjustable transparency so you can blend old and new views
  3. 3Offline mode for saved map areas
  4. 4Geographic coverage for your specific city or region

Skip

  • Apps with only scanned historical maps but no GPS alignment
  • Services requiring expensive subscriptions for basic overlay features

Used for: seeing demolished buildings in their original locations · understanding why street grids suddenly change angle · finding remnants of old infrastructure · comparing historical photos to current views

Side quests that use it

Pick the adventure first; the gear follows.