Trex AR vs WhoPoo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trex AR
Visualize outdoor living spaces with this augmented reality tool. Explore different decking and railing options in your own environment. Design basic deck shapes, estimate square footage, and find local professionals.
- AR visualization of decking and railing
- View entire decking portfolio
- Experiment with railing pairings
- Build basic deck shapes
- Estimate square footage
- Order samples
- Find builders and retailers
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Discover your outdoor inspiration with this unique visualizer. This AR tool is designed to quickly and easily show how Trex® decking and railing can be the perfect platform for outdoor living for years to come. It allows you to develop basic deck shapes in nearly any outdoor or indoor environment to get you started on the journey to building an outdoor oasis. Using the latest in AR technology you can: >> View Trex's entire decking portfolio as a live view either in your backyard space or your living room >> Experiment with the most popular railing offerings to pair with your favorite Trex deck color >> Build basic shapes and get square footage for your design >> Order samples through links in the My Deck page >> Find builders or retailers to help get you started
WhoPoo
Discover and learn about animal droppings and tracks encountered during outdoor activities. Contribute your own findings to a shared encyclopedia, enhancing your understanding of local wildlife.
- Identify animal droppings
- Identify animal tracks
- Learn about wildlife
- Contribute photos to encyclopedia
- Interactive outdoor exploration
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Who Poo is an interactive way to enjoy wildlife. Read about poo and tracks on your hike, dog-walks, hunting trails or just for fun! Upload your own pictures for a chance to be featured in Who Poo's collaborative encyclopedia Find more info at whopooapp.com
Screenshots
Verdict
The clearest difference is rating: Trex AR at 3.9 against WhoPoo's 2.9. Trex AR also leads on ratings volume (719 vs 8). WhoPoo's advantage is review sentiment (33% vs 6%) and monetization model (free vs free with in-app purchases). 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.
Trex AR holds the better App Store score, 3.9 against 2.9. That said, the two scores are not equally well evidenced: Trex AR has 719 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 6% of Trex AR's written reviews are positive against 33% of WhoPoo's, so the app with the better star average is not the one people write more warmly about.
Trex AR ships an update every 4 months, WhoPoo every 2 months. Both last shipped on October 16, 2026.
| Parameter | Trex AR | WhoPoo |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (719 ratings) — better | 2.9 (8 ratings) |
| Positive reviews | 5.7% of reviews | 33.3% of reviews — better |
| Number of ratings | 719 — better | 8 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 536 MB | 46 MB |
| Age rating | 4+ | 9+ |
| Developer | Trex Co, Inc | Sass Law LLC |
Customer experience
Trex AR
WhoPoo
Bugs and requests
Trex AR
Reported bugs
4 issues- Camera function doesn't work
- Can't save or restart scans
- Deck placement and sizing issues
- Crashes and freezes frequently
Requested features
4 requests- Allow uploading photos to build off of
- Add ability to adjust deck height and add stairs
- Improve visualization and make it more realistic
- Provide more guidance and instructions
WhoPoo
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Trex AR
No in-app purchases
WhoPoo
No in-app purchases
