Meridian GIS

A map-first GIS for iPad. Inspect, edit, style, analyse, and export spatial data in offline projects — touch- and Apple Pencil-friendly, away from the desk.

Meridian is a local-first GIS workspace for iPad. It helps you open, inspect, edit, style, analyse, validate, and export spatial data in local project files — built for lightweight, map-first GIS work.

FREE TO TRY, ONE-TIME PRO UNLOCK Download free and work on your own data: create projects, import, draw, edit, style, and export within free-tier limits. A single one-time Meridian Pro purchase lifts those limits and unlocks analysis tools, the Workflow Builder, charts, and PDF output. No account, no subscription.

LOCAL PROJECTS, OFFLINE Your work lives in local .gispad packages that open and edit completely offline. No analytics — your data stays on your iPad unless you share it.

A MAP-FIRST, TOUCH WORKSPACE A full-bleed MapLibre map with floating controls that stay out of the way. Draw and edit directly with touch and Apple Pencil, with a precision loupe for accurate vertex work. Use online basemaps, local PMTiles for true offline maps, or a coordinate grid with no network at all. Satellite basemaps are optional and use your own key.

INSPECT AND EDIT AWAY FROM THE DESK Fast attribute tables with search and sort, a feature inspector, field forms, and attribute editing. Draw and edit points, lines, polygons, and rectangles with snapping, vertex editing, split, merge, and undo/redo.

FIELD WORK Record a GPS track as you walk a route and save it as a normal line feature — foreground only, with honest pause and resume, and no background tracking ever. Drop a point at your location. Import geotagged photos as a point layer, and attach photos to features: they travel inside the project package and never leak into exported GIS data.

IMPORT, EXPORT, AND CONNECTED DATA Import GeoJSON, CSV (WKT or lon/lat), GeoPackage, KML/KMZ, Shapefile, and read-only Esri File Geodatabase. Add public data from Natural Earth, OpenStreetMap, US Census, and GeoNames, or import a one-time copy from OGC API — Features, WFS, and ArcGIS Feature Services. Export clean GeoJSON, GeoPackage, KML/KMZ, Shapefile, and CSV+WKT, checked by an export inspector.

CRS-AWARE WORKFLOWS Layers are stored in WGS84. Meridian detects projected data on import, transforms common coordinate systems and UTM zones, and offers Define-CRS and reproject tools with per-layer provenance and an in-app CRS guide.

SPATIAL ANALYSIS AND WORKFLOWS A focused set of exploratory tools — buffer, clip, dissolve, convex hull, spatial join, select by location, density, network reachability, summarize within, and more. Chain them in a visual Workflow Builder: wire tool nodes together, run the chain as one job with per-node progress, save it in the project, and rerun it later. Every result is a normal layer you can style and export, with transparent method notes and honest accuracy warnings.

STYLE, CHARTS, AND REPORTS Single-symbol, categorized, and graduated styling with custom point marker shapes, line styles, fill patterns, point heatmaps, 3D extrusion, clustering for dense point layers, and labels with offline glyphs. Build charts — bar, histogram, pie, line, scatter, box plot, and more — that link back to your map selection. Add markup notes that never change your data, produce a clean PDF map layout with a legend, scale bar, and north arrow, and assemble saved multi-page Map Brief reports to export as PDF.

ASK IN PLAIN LANGUAGE Type a request and Meridian's on-device command planner proposes a reviewable plan, then opens the right tool already filled in. No cloud service, nothing leaves your device, and nothing runs until you confirm.

ONE UNIVERSAL APP The same app includes a scoped iPhone companion for viewing projects, toggling layers, editing a feature's attributes, and dropping a quick note in the field. The full workspace lives on iPad.

YOUR DATA STAYS YOURS Projects are local .gispad packages. Share them as files and export clean GIS formats with no internal IDs in your data.