Comparison

Lambert vs Tracesmap

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

Head to head
About

Lambert

This application transforms your iPhone into a specialized geological compass. It accurately measures the dip direction and angle of geological strata, displaying real-time orientation data. Measurements can be enhanced with text and plotted on a map for easy transfer to your computer.

Highlights
  • Geological compass functionality
  • Measure dip direction and angle
  • Real-time stereographic projection
  • Wulff and Schmidt Net projection diagrams
  • Add text to measurements
  • Plot measurement localities on a map
  • Transfer data to computer
Features
Read full description

This app turns your iPhone into a geological compass, a tool for each geologist. It can be used to measure the direction of dip and the angle of dip of geological strata. The app shows the current device orientation in a realtime stereographic projection. The data can be previewed in projection diagrams (Wulff and Schmidt Net) and transferred to your computer. You can add text to the measurements and plot the measurement localities on a map.

About

Tracesmap

Features
Read full description

TracesMap combines GPS trace recording and OpenStreetMap POI editing in one app, built for mapping on the go. Record your journeys, upload GPX traces directly to OpenStreetMap, and help improve the world's free map. KEY FEATURES - Record GPX Traces: Capture your GPS tracks with distance-based or time-based recording methods. - Direct OSM Upload: Seamlessly upload your traces to OpenStreetMap with one tap. - Add & Edit POIs: Place new points of interest on the map or edit tags on existing OSM nodes and polygons, with a live tag preview as you edit. - Brand & Place Search: Find businesses and places by name using the Name Suggestion Index (NSI) and apply the matching OSM tags automatically. - Multiple Map Styles: Choose from Carto Vector, Topo Vector, Topo Raster, OSM Raster, and Thunderforest Transport. - Live Dashboard: View real-time speed, elevation, GPS accuracy, and recording stats on-screen. - Public Traces: Browse public GPS traces from other OpenStreetMap contributors in your area. - Metric & Imperial Units: Switch between km/m and mi/ft in settings. - Exclusion Zones: Set locations where GPS recording is automatically paused for privacy. - Background Recording: Keep recording even when the app is in the background. - Cloud Sync: Sync your trace data across devices. - Multilingual: Available in English, French, German, Dutch, Simplified Chinese, and Traditional Chinese. TracesMap is built for the OpenStreetMap community. Log in with your OSM account to start recording traces and editing POIs that help mappers worldwide. Note: Continued use of GPS running in the background can dramatically decrease battery life.

Screenshots

Lambert4 screens
Tracesmap4 screens

Verdict

The call

The clearest difference is update cadence: Tracesmap at fortnightly against Lambert's every 5 months. Lambert's advantage is iOS requirement (16.6 vs 18.6). 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

Lambert ships an update every 5 months, Tracesmap fortnightly. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 8 level
Lambert versus Tracesmap: the parameters behind the verdict, then further details
ParameterLambertTracesmap
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 5 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better18.6
Further details — not scored
Size2 MB11 MB
Age rating4+4+
DeveloperPeter AppelTracestrack Map Service

In-app purchases

None

Lambert

No in-app purchases

None

Tracesmap

No in-app purchases

Questions

Is Lambert free?
Lambert is free to download, with no in-app purchases.
Is Tracesmap free?
Tracesmap is free to download, with no in-app purchases.
Do Lambert or Tracesmap have ads?
Neither Lambert nor Tracesmap shows ads.
Which is updated more often, Lambert or Tracesmap?
Lambert ships an update every 5 months, and Tracesmap fortnightly. Most recently, Lambert was updated on June 1, 2026 and Tracesmap on September 24, 2026.

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