Comparison

Outcrop vs Sketch Viewer UP

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

Head to head
About

Outcrop

This app aids geologists in field studies by allowing them to capture high-resolution images of outcrops. Users can interpret geological features, add annotations, take measurements, and export data to construct 3D geological models.

Highlights
  • High-resolution outcrop imaging
  • Interpretation of facies, structures, and boundaries
  • Annotation and measurement tools
  • Dip and azimuth measurement
  • GPS location integration
  • 3D geological model export (GOCAD format)
Features
Read full description

This application is designed for the geologist to use during field studies. It lets the user take pictures of the outcrop, interpret the high resolution image and export this information in 3D to construct a 3D geological model. On the image, the user can interpret facies intervals, sedimentary structures and boundaries. The user can add annotations anywhere, measure width/height of sediment bodies (channels, lobes, etc.), and compute bodies statistics. Using an iphone or ipad, the user can measure dip and azimuth and locate this measure on the picture or use its GPS location to export dip markers to the 3D model. Once the user defines the image scale, all interpreted boundaries and intervals can be exported in 3D in GOCAD format (image, interpretations boundaries, dip/azimuth and facies intervals).

About

Sketch Viewer UP

This application allows users to import and view 3D models from various professional design software. It supports a wide range of file formats, making it convenient for designers, engineers, and students to access and analyze 3D drawings on their mobile devices.

Highlights
  • Import and view 3D drawings
  • Supports multiple professional 3D file formats
  • Collection of standard industry libraries
  • Mobile 3D viewing software
  • Professional CAD drawing and modeling
Features
Read full description

A professional 3D model browsing and viewing tool Designed for designers, artists, teachers, students, engineers, and those involved in engineering drawing, suitable for various professional scenarios in multiple industries. It comes with a vast library of industry-standard models and supports the import and viewing of various 3D drawings, with efficient and convenient operations. 1. Professional software for designers, artists, scholars, students, teachers, engineering drafters, and engineers 2. Comprehensive standard libraries for all industries 3. Supports importing and viewing 3D drawings, quick and convenient. 4. Supports multiple formats, including SKP, SolidWorks, ProE/Creo, sview, CATIA, Fbx, Ifc, Inventor, JT, Parasolid, PDMS, Rhino, U3D, UG, CGR, Maya, LightWave (mainstream formats), parsing and browsing dae, max, 3ds, obj, ABC, FBX, DAE, OBJ, BVH, DXF, PSK, STL, PLY, X3D, JCD, svp. At the same time, SU supports mobile 3D viewing software, professional CAD viewing, drawing, modeling! Privacy Policy: https://kdocs.cn/l/coraO45x7Hrz User Agreement: https://kdocs.cn/l/ciYVcrmHDELu

Screenshots

Outcrop2 screens
Sketch Viewer UP4 screens

Verdict

The call

The clearest difference is in-app purchases: Outcrop at none against Sketch Viewer UP's 3. Outcrop also leads on iOS requirement (11.0 vs 13.0). Sketch Viewer UP's advantage is update cadence (every 8 days vs every 5 weeks) and ratings volume (10 vs 3). On price, rating, review sentiment and ads 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. Sketch Viewer UP sells 3 one-off in-app purchases. Outcrop asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 1.7 for Outcrop against 1.6 for Sketch Viewer UP. Both are backed by a comparable volume of ratings — 3 and 10 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

Outcrop ships an update every 5 weeks, Sketch Viewer UP every 8 days. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
Outcrop versus Sketch Viewer UP: the parameters behind the verdict, then further details
ParameterOutcropSketch Viewer UP
PriceFreeFree
Rating1.7 (3 ratings) — better1.6 (10 ratings)
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings310 — better
Update frequencyEvery 5 weeksEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size21 MB40 MB
Age rating4+17+
DeveloperNext-Shot骁宇 陈

Customer experience

Outcrop

All ratings3 ratings
Positive0.0%
Neutral33.3%
Negative66.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Sketch Viewer UP

All ratings10 ratings
Positive10.0%
Neutral10.0%
Negative80.0%
Written reviews8 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Outcrop

No in-app purchases

3 purchases

Sketch Viewer UP

One-time3
  • 一季度会员$9.99
  • 一年会员$24.99
  • 永久会员$29.99

Questions

Is Outcrop free?
Outcrop is free to download, with no in-app purchases.
Is Sketch Viewer UP free?
Sketch Viewer UP is free to download, with in-app purchases available.
Which has better reviews, Outcrop or Sketch Viewer UP?
Outcrop is rated higher. Outcrop averages 1.7 out of 5 from 3 ratings, while Sketch Viewer UP averages 1.6 from 10 ratings.
Do Outcrop or Sketch Viewer UP have ads?
Neither Outcrop nor Sketch Viewer UP shows ads.
Which is updated more often, Outcrop or Sketch Viewer UP?
Outcrop ships an update every 5 weeks, and Sketch Viewer UP every 8 days. Most recently, Outcrop was updated on October 24, 2026 and Sketch Viewer UP on October 24, 2026.

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