Comparison

STL Simple Viewer vs Forge

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

Head to head
About

STL Simple Viewer

Easily view and interact with 3D STL CAD models. Supports various file types and offers advanced rendering options for detailed analysis. Get model information and explore interiors with clipping planes.

Highlights
  • View ASCII and Binary STL files
  • Load STL from ZIP
  • Rotate, pan, and zoom
  • Orthogonal and Perspective modes
  • Model info (triangle count, bounding box)
  • Rendering options (faces, edges, transparency)
  • Clipping plane for interiors
Features
Read full description

STL Simple Viewer is a great app to quickly view STL, 3MF & DXF 3D files and export them to the most commonly used CAD formats. Features: - Supports STL files both ASCII and Binary formats. - Supports 3MF & DXF files. - Load files directly from ZIP archives. - Export to DXF, OBJ, DAE, PLY, USD, STL & 3MF. - Measure distances between points within your model. - Rotate, pan, and zoom models with intuitive touch controls. - Configure rendering options: faces, edges, points, background and transparency. - Render using a clipping plane (useful for viewing model interiors). - View models in Orthographic or Perspective mode. - Obtain model information including triangle count, bounding box, surface area, and volume. Privacy Policy: https://www.boviosoft.com/apps/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For support or questions: support@boviosoft.com

About

Forge

Features
Read full description

Forge is a daily quest system built to help you turn goals into consistent action. Instead of letting habits sit as vague intentions, Forge helps you break them into repeatable quests you can track every day. Whether you are trying to build better routines, stay focused on personal growth, or simply become more consistent, Forge gives you a clear structure that is simple to use and satisfying to stick with. Forge is designed around momentum. You set up your quests, define how often they should happen, and track progress as you go. The app helps you stay engaged with streaks, consistency tracking, progress summaries, badges, and a flexible daily window that works around your real schedule. If your day starts late or runs past midnight, Forge can adapt to that instead of forcing you into a rigid calendar definition of a day. Key features: • Create repeatable daily quests and routines Set up quests that match your goals and build a system you can realistically follow. • Track consistency over time See how often you show up, monitor your progress, and build stronger routines through repetition. • Build streaks and earn rewards Stay motivated with streak tracking, badges, and progression that make daily effort feel meaningful. • Flexible day window support Define when your day starts and ends so your progress reflects your actual lifestyle, including schedules that go past midnight. • Timed quests and reminders Use timers for focused work sessions and receive alerts when sessions finish or when quests still need attention. • Daily notes and reflection Capture notes for the day and stay more intentional about what you completed and how you felt. • Stats and progress views Review your weekly and monthly performance to understand patterns and keep improving. • Widgets, Live Activities, and Apple Watch support Keep your progress visible throughout the day and stay connected to your quests without opening the app every time. • Local-first experience Your progress stays centered on your device, making Forge feel lightweight, fast, and personal. Forge is for people who want a system that feels motivating without becoming overwhelming. It combines structure, visibility, and momentum into a focused daily experience that helps you keep moving. If you want to be more consistent, follow through more often, and turn your goals into something actionable, Forge gives you a clear path to do it.

Screenshots

STL Simple Viewer4 screens
Forge4 screens

Verdict

The call

The clearest difference is in-app purchases: Forge at none against STL Simple Viewer's 4. Forge also leads on ads (none vs shown). On price, device support and iOS requirement 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. STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days. Forge asks for nothing beyond the download.

Scorecard2 real differences · 8 level
STL Simple Viewer versus Forge: the parameters behind the verdict, then further details
ParameterSTL Simple ViewerForge
PriceFreeFree
Rating4.3 (920 ratings) — better—
Positive reviews18.1% of reviews—
Number of ratings920 — better—
Update frequencyEvery 5 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS17.0 — better17.6
Further details — not scored
Size19 MB17 MB
Age rating4+4+
DeveloperVictor BovioRajesh Kumar Madhavan

Bugs and requests

STL Simple Viewer

Reported bugs

3 issues
  • App crashes when opening larger STL files
  • Inability to open some file formats
  • Ads continue to appear even after paying for ad removal

Requested features

3 requests
  • Add ability to save color/lighting settings
  • Improve stability and reduce crashes
  • Provide an ad-free paid version

Forge

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

STL Simple Viewer

Subscriptions2
  • Pro version (1 week plan)$0.997 Days
  • Pro version (1 month plan)3 Days trial$1.991 Month
One-time2
  • Remove Ads$2.99
  • Export Pack$3.99
None

Forge

No in-app purchases

Questions

Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Is Forge free?
Forge is free to download, with no in-app purchases.
Do STL Simple Viewer or Forge have ads?
STL Simple Viewer shows ads; Forge does not.

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