3D Viewer by Chief Architect vs On
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Viewer by Chief Architect
Explore 3D architectural models in virtual reality. Navigate through home designs with intuitive controls, experiencing them before construction. Ideal for professionals to share immersive project previews with clients.
- Virtual reality navigation
- Walk and fly through designs
- Exterior, room, and floor plan views
- Sojourn 3D navigation tools
- Gyro camera for free form viewing
- Background camera control
Read full descriptionHide full description
3D Viewer – A virtual reality viewer for 3D models exported from Chief Architect software. Visualize and navigate home projects before they are built using the Sojourn 3D virtual reality navigation tools. Walk or Fly through designs and experience exterior, room, cross section, and floor plan views. To view models with 3D Viewer, export the original model with saved cameras from Chief Architect software to the cloud (provided by Chief Architect) and open the model using 3D Viewer. A great service if you are a professional builder/designer and want to share a virtual model with your clients. Sojourn 3D virtual reality navigation: -thumbsticks to move (fly) and rotate -gyro camera for free form viewing -background camera on / off -walk thru allowing you to physically walk -dynamic camera height while in fly mode -manual camera height adjustment
On
Access your GPS tracking account to view real-time asset locations and historical playback. Manage your asset information directly within the application.
- Log into GPS tracking account
- Modify asset information
- View real-time asset location
- Historical playback
Read full descriptionHide full description
On-Track GPS Live allows clients to log into their gps tracking account, modify their asset information and view the real time location of their asset, including historical playback.
Screenshots
Verdict
The clearest difference is rating: 3D Viewer by Chief Architect at 3.7 against On's 1.0. 3D Viewer by Chief Architect also leads on ratings volume (527 vs 1). On's advantage is iOS requirement (11 vs 16.0). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
3D Viewer by Chief Architect holds the better App Store score, 3.7 against 1.0. That said, the two scores are not equally well evidenced: 3D Viewer by Chief Architect has 527 ratings behind it against 1, so its average is the more settled of the two.
3D Viewer by Chief Architect ships an update every 4 months, On every 3 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | 3D Viewer by Chief Architect | On |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (527 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 31.1% of reviews | — |
| Number of ratings | 527 — better | 1 |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 11 — better |
| Further details — not scored | ||
| Size | 152 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Chief Architect | M2M DATA GROUP LIMITED |
Customer experience
3D Viewer by Chief Architect
On
Bugs and requests
3D Viewer by Chief Architect
Reported bugs
3 issues- Cannot open zipped files
- Difficult to import models from Dropbox/OneDrive
- VR mode spins around uncontrollably
Requested features
8 requests- Support for OneDrive
- AR in full scale
- Ability to make handwritten/design notes on the model
- Markup and add text comments
- Floor plan view that mimics desktop, control layers, see notes
Show 3 moreShow fewer
- Saved walkthroughs
- 2D plans and 3D model viewing
- Ability to isolate and view single floors
On
Not enough reviews yet to summarise bugs or requests.
In-app purchases
3D Viewer by Chief Architect
No in-app purchases
On
No in-app purchases
Questions
Is 3D Viewer by Chief Architect free?
Is On free?
Which has better reviews, 3D Viewer by Chief Architect or On?
Do 3D Viewer by Chief Architect or On have ads?
Which is updated more often, 3D Viewer by Chief Architect or On?
Other comparisons
