Comparison

Lambert vs StraboField

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

StraboField

This app is a comprehensive tool for geologists to record field observations, capture data like photos and sketches, and create geological maps. It supports various subdisciplines and works offline, syncing data to an open-source platform.

Highlights
  • Record geological observations
  • Capture photos and sketches
  • Collect orientation and spatial data
  • Create geologic maps and sections
  • Work offline with custom basemaps
  • Organize and back up data
Features
Read full description

StraboField is a powerful, all-in-one mobile app designed to streamline your geological fieldwork. Record observations, capture photos and sketches, collect orientation data, create geologic maps and stratigraphic sections — all from a single, map-centered platform. Easily collect spatially referenced data using point, line, or polygon-based Spots. Work across multiple scales using nested Spots and high-resolution image basemaps. Designed by geologists, for geologists, StraboField supports workflows across subdisciplines including structural geology, sedimentology, petrology, volcanology, and geomorphology. ** Key Features: ** * Capture field data with photos, sketches, and notes * Collect georeferenced orientation and spatial data * Use custom or built-in basemaps offline * Create multi-scale observations with nested Spots * Organize and back up data locally or to StraboSpot.org * StraboField is fully functional offline, making it ideal for remote fieldwork. Once online, your data can be synced to the StraboSpot digital data system at StraboSpot.org — an open- source platform supported by the National Science Foundation.

Screenshots

Lambert3 screens
StraboField4 screens

Verdict

The call

The clearest difference is update cadence: StraboField at every 11 days against Lambert's every 5 months. StraboField also leads on ratings volume (22 vs 4). Lambert's advantage is rating (5.0 vs 4.6) and review sentiment (75% vs 50%). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

Lambert holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: StraboField has 22 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 75% of Lambert's written reviews are positive against 50% of StraboField's.

UpkeepUpdate frequency

Lambert ships an update every 5 months, StraboField every 11 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Lambert versus StraboField: the parameters behind the verdict, then further details
ParameterLambertStraboField
PriceFreeFree
Rating5.0 (4 ratings) — better4.6 (22 ratings)
Positive reviews75.0% of reviews — better50.0% of reviews
Number of ratings422 — better
Update frequencyEvery 5 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.0
Further details — not scored
Size3 MB89 MB
Age rating4+4+
DeveloperPeter AppelThe University of Kansas

Customer experience

Lambert

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews16 reviews
Positive75.0%
Neutral6.3%
Negative18.8%

StraboField

All ratings22 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Lambert

No in-app purchases

None

StraboField

No in-app purchases

Questions

Is Lambert free?
Lambert is free to download, with no in-app purchases.
Is StraboField free?
StraboField is free to download, with no in-app purchases.
Which has better reviews, Lambert or StraboField?
Lambert is rated higher. Lambert averages 5.0 out of 5 from 4 ratings, while StraboField averages 4.6 from 22 ratings.
Do Lambert or StraboField have ads?
Neither Lambert nor StraboField shows ads.
Which is updated more often, Lambert or StraboField?
Lambert ships an update every 5 months, and StraboField every 11 days. Most recently, Lambert was updated on November 1, 2026 and StraboField on November 3, 2026.

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