Comparison

MapTiler vs Field Sentinel Mapper

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MapTiler

Features
Read full description

Application for displaying custom vector and raster maps powered by MapTiler. Explore beautiful map styles, enable 3D terrain and play with geolocation and navigation features.

About

Field Sentinel Mapper

Features
Read full description

Field Sentinel is a professional geospatial platform for iPhone and iPad, built for teams who work where connectivity is unreliable or unavailable. Whether you support defense operations, emergency response, surveying, construction, aviation, or remote field research, Field Sentinel puts maps, GIS tools, and intelligence workflows on a single device—fully offline when you need it. WORK WITHOUT THE NETWORK • Render offline maps from GeoPackage, MBTiles, and PMTiles • Run spatial queries with SpatiaLite against local feature data • Design and edit schemas, tables, domains, and relationships in GeoPackage • Collect field data with XLSForm-compatible forms and barcode scanning • Import and export KML, KMZ, GPX, GeoJSON, Shapefile, and more PROFESSIONAL MAP & GIS EDITING • Snap-aware vertex editing with split, merge, reshape, and erase tools • Digitize points, lines, and polygons directly on live map layers • Redline annotations, symbols, and labels with GeoJSON/KML export • Terrain analysis including viewshed, slope, elevation, and 3D terrain viewing • GDAL-powered format conversion for raster and vector data ON-DEVICE AI ASSISTANT • AI chat and report drafting powered by local language models • Natural-language spatial queries against your map data • Image analysis for terrain and damage assessment from photos • Document Q&A from PDFs and field documents—processed on your device SITUATIONAL AWARENESS & COMMUNICATIONS • Team Awareness Kit (TAK) client with Cursor-on-Target messaging • GeoChat, mission packages, and live position sharing when connected • Fleet and asset tracking with proximity alerts • Optional integration with TAK Server for team coordination FIELD OPERATIONS MODULES • Surveying: COGO, traverse, leveling, area/volume, and GNSS/RTK support • Construction: earthwork, CAD/DXF overlay, BIM/IFC viewing, and PDF reports • Aviation: FAA charts, airspace layers, TFRs, flight planning, and NOTAMs • Emergency management: ICS/NIMS forms, CAP alerts, and damage assessment tools • Intelligence workflows: GEOINT analysis, change detection, and multi-source fusion BUILT FOR THE FIELD Field Sentinel is optimized for iPad and iPhone in portrait and landscape. Store tile packages, models, and databases on device. Generate professional PDF reports in the field. Use split-screen workspace tools for documents, notes, and annotations alongside your map. Field Sentinel is developed by Tech Maven Geospatial—bringing enterprise GIS, tactical awareness, and on-device intelligence to operators at the edge. Privacy: Core workflows run on your device. Network access is optional and used only for features you enable, such as TAK Server sync, chart downloads, or imagery updates. Questions or enterprise licensing: contact Tech Maven Geospatial.

Screenshots

MapTiler4 screens
Field Sentinel Mapper4 screens

Verdict

The call

The clearest difference is update cadence: MapTiler at daily against Field Sentinel Mapper's every 2 weeks. MapTiler also leads on iOS requirement (15.4 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MapTiler ships an update daily, Field Sentinel Mapper every 2 weeks. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 4 level
MapTiler versus Field Sentinel Mapper: the parameters behind the verdict, then further details
ParameterMapTilerField Sentinel Mapper
PriceFreeFree
Update frequencyDaily — betterEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.4 — better17.0
Further details — not scored
Size2 MB164 MB
Age rating4+4+
DeveloperMapTilerTech Maven GeoSpatial LLC

In-app purchases

None

MapTiler

No in-app purchases

None

Field Sentinel Mapper

No in-app purchases

Questions

Is MapTiler free?
MapTiler is free to download, with no in-app purchases.
Is Field Sentinel Mapper free?
Field Sentinel Mapper is free to download, with no in-app purchases.
Do MapTiler or Field Sentinel Mapper have ads?
Neither MapTiler nor Field Sentinel Mapper shows ads.
Which is updated more often, MapTiler or Field Sentinel Mapper?
MapTiler ships an update daily, and Field Sentinel Mapper every 2 weeks. Most recently, MapTiler was updated on September 18, 2026 and Field Sentinel Mapper on September 21, 2026.

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