Comparison

STL Master vs Million Wells

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

Head to head
About

STL Master

View and interact with 3D models in augmented reality. Share instant screenshots and screen recordings of your designs directly from the app.

Highlights
  • STL file viewing
  • Augmented reality (AR) mode
  • Instant screenshots
  • Screen recording
  • Design sharing
Read full description

This app also allows you to share instant screenshots and screen recording videos of your designs without using any other tools/apps.

About

Million Wells

Features
Read full description

The "Million Wells" app was created to help us reach our "1 million wells" goal to sustain the city of Bengaluru. We want to spread the idea of storing water and bring back the memory of the shallow aquifers. Our Vision Climate-resilient, ecologically-caring, and socially-just knowledge-based water systems for all biomes. Our Mission Facilitating livelihood-centred sustainable water and sanitation systems. Our Work Biome Trust works in association with Governments, diverse communities and organisations in varied aspects of water management. Our Partners The "Million Wells" app was created in collaboration with Design for Good (https://designforgood.org). Design for Good mobilises a global alliance to design lasting, measurable impact for the United Nations Sustainable Development Goals on a scale only achievable through worldwide collaboration. Our App The "Million Wells" app features are: - Get access to 500+ already established well locations across Bengaluru - Ability to submit details about a new well - Access detailed information about each well Learn more about us at https://biometrust.org.

Screenshots

STL Master4 screens
Million Wells4 screens

Verdict

The call

The clearest difference is update cadence: STL Master at monthly against Million Wells's every 6 months. STL Master also leads on device support (4 vs 2). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

STL Master ships an update monthly, Million Wells every 6 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
STL Master versus Million Wells: the parameters behind the verdict, then further details
ParameterSTL MasterMillion Wells
PriceFreeFree
Rating4.2 (51 ratings) — better—
Positive reviews86.1% of reviews—
Number of ratings51 — better—
Update frequencyMonthly — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS14.113.4 — better
Further details — not scored
Size68 MB42 MB
Age rating4+4+
DeveloperJA Logic Labs LLCAtta Systems SRL

Bugs and requests

STL Master

Reported bugs

13 issues
  • App crashes immediately on launch
  • Files won't open or load
  • Objects disappear when moved
  • Inconsistent file orientation on load
  • Markup mode traps user and requires app restart
Show 8 more
  • Buttons don't toggle/close properly
  • Measurement dimensions display as mirror images
  • HDRI background doesn't affect model lighting
  • Freezing in editing/pen tip mode
  • Objects zoomed in with no zoom out capability
  • Parts of model cut off or not displayed
  • Mac version has significant stability issues
  • iOS 10.2 compatibility crash

Requested features

13 requests
  • More color and material options
  • Unit measurement display and metric/standard conversion
  • How-to video tutorials for hidden features
  • Proper zoom in/out controls
  • Object positioning/movement button
Show 8 more
  • Measurement and dimension tools
  • Drag-and-drop file opening support
  • Menu items for file operations
  • Closeable menu buttons
  • More file format support
  • HDRI lighting affecting model rendering
  • Save functionality for combined files
  • Proper markup mode functionality

Million Wells

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

STL Master

No in-app purchases

None

Million Wells

No in-app purchases

Questions

Is STL Master free?
STL Master is free to download, with no in-app purchases.
Is Million Wells free?
Million Wells is free to download, with no in-app purchases.
Do STL Master or Million Wells have ads?
Neither STL Master nor Million Wells shows ads.
Which is updated more often, STL Master or Million Wells?
STL Master ships an update monthly, and Million Wells every 6 months. Most recently, STL Master was updated on October 24, 2026 and Million Wells on October 25, 2026.

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