Comparison

ARuler vs GLTF Viewer · Convert OBJ/STL

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

Head to head
About

ARuler

This utility app provides a convenient measuring tool directly on your smartphone. It allows for accurate measurements of objects without any extra hardware, and you can save and share your results.

Highlights
  • Accurate measurements
  • No additional hardware required
  • Save measurements
  • Share measurements
Features
Read full description

ARuler is a must-have app for anyone who wants to have a measuring tool in their pocket at all times! ARuler : - Accurately measure anything, anytime! - No additional hardware needed, just take out your phone and start measuring! - Save all of your measurements! - Share your measurements!

About

GLTF Viewer · Convert OBJ/STL

View and inspect 3D models in glTF and GLB formats with advanced rendering and animation playback. Offers a full inspector for scene graph, materials, and animations. Advanced features like export and AR require an in-app purchase.

Highlights
  • View glTF and GLB 3D models
  • Orbit, pan, and zoom controls
  • Multiple render modes
  • Embedded animation playback
  • Full glTF inspector
  • Export to multiple formats (in-app purchase)
  • AR viewing (in-app purchase)
Features
Read full description

GLTF Viewer opens .gltf and .glb 3D model files and gives you a complete, professional inspector for the glTF format. VIEW YOUR MODEL • Orbit, pan and zoom with smooth touch controls • Solid, Wireframe, X-ray and Points render modes • Play back embedded animations: scrub, switch clips, change speed • Toggle grid, auto-rotate, and 3 lighting/environment presets • Works with Draco-compressed geometry and KTX2/Basis-compressed textures inside your glTF/GLB • Handles very large files gracefully: models over 400MB switch to a full data inspector even without a live 3D preview FULL glTF INSPECTOR • Scene graph / node structure • Every mesh, material (PBR values) and texture • Animation clips and accessor/buffer data • Raw glTF JSON viewer • Complete glTF 2.0 validation report with errors, warnings and exact JSON-pointer locations EXPORT, AR AND MEASURE These tools require an in-app purchase: • Export / convert your model to another format: GLB, glTF, OBJ, STL, PLY or USDZ • View your model in AR, right in your own space, with USDZ Quick Look • Tap-to-measure real-world distances on the model • Advanced render modes: Normals, Matcap, UV-checker • Hi-resolution screenshot capture Open a file from the Files app, iCloud Drive, Mail, AirDrop or any app's Share Sheet, or tap "Open File" inside GLTF Viewer. No account, no login required. Privacy Policy: https://rush.tools/privacy Terms of Use: https://rush.tools/terms

Screenshots

ARuler3 screens
GLTF Viewer · Convert OBJ/STL4 screens

Verdict

The call

The clearest difference is rating: GLTF Viewer · Convert OBJ/STL at 5.0 against ARuler's 1.0. GLTF Viewer · Convert OBJ/STL also leads on in-app purchases (none vs 1) and update cadence (every 3 days vs every 3 months). ARuler's advantage is iOS requirement (11.0 vs 15.0). On price, ratings volume, ads 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. ARuler sells 1 one-off in-app purchase. GLTF Viewer · Convert OBJ/STL asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GLTF Viewer · Convert OBJ/STL holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

ARuler ships an update every 3 months, GLTF Viewer · Convert OBJ/STL every 3 days. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

Scorecard5 real differences · 4 level
ARuler versus GLTF Viewer · Convert OBJ/STL: the parameters behind the verdict, then further details
ParameterARulerGLTF Viewer · Convert OBJ/STL
PriceFreeFree
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Number of ratings11
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS11.0 — better15.0
Further details — not scored
Size47 MB26 MB
Age rating4++4
Developer思远 伍Rush Tools LLC

Customer experience

ARuler

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

GLTF Viewer · Convert OBJ/STL

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

ARuler

One-time1
  • Pro version$0.99
None

GLTF Viewer · Convert OBJ/STL

No in-app purchases

Questions

Is ARuler free?
ARuler is free to download, with in-app purchases available.
Is GLTF Viewer · Convert OBJ/STL free?
GLTF Viewer · Convert OBJ/STL is free to download, with no in-app purchases.
Which has better reviews, ARuler or GLTF Viewer · Convert OBJ/STL?
GLTF Viewer · Convert OBJ/STL is rated higher. ARuler averages 1.0 out of 5 from 1 ratings, while GLTF Viewer · Convert OBJ/STL averages 5.0 from 1 ratings.
Do ARuler or GLTF Viewer · Convert OBJ/STL have ads?
Neither ARuler nor GLTF Viewer · Convert OBJ/STL shows ads.
Which is updated more often, ARuler or GLTF Viewer · Convert OBJ/STL?
ARuler ships an update every 3 months, and GLTF Viewer · Convert OBJ/STL every 3 days. Most recently, ARuler was updated on October 7, 2026 and GLTF Viewer · Convert OBJ/STL on October 18, 2026.

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