Trex AR vs Reef Tank Log
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
Read full descriptionHide full description
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
Reef Tank Log
Read full descriptionHide full description
NEVER LOSE YOUR REEF DATA AGAIN. Reef Tank Log is the offline-first journal built for saltwater reef keepers. Log your parameters, schedule your dosing, and track your corals - all on your device. No account. No ads. No subscription just to write down a test result. Tired of apps that crash and wipe months of data, or suddenly lock basic logging behind a paywall? This one doesn't. Logging your parameters and backing up your data are free, forever. - TRACK EVERY PARAMETER - Salinity, alkalinity, calcium, magnesium, potassium, nitrate, phosphate, pH and temperature, logged with the exact precision reefers need (yes, salinity to 1.0255). Tag each result with the kit you used - Hanna, Salifert, Red Sea or API. - FIX A BAD READING - Fat-fingered 85 instead of 8.5? Open the reading history from the chart and edit or delete any single point. Your trend line is never stuck with a typo. - SEE THE TREND, NOT JUST THE NUMBER - Clean trend charts with your target range shaded in, so you instantly see when alkalinity is drifting. View 30 days, 90 days, a year, or all of it, with a stability readout for the window. - DOSING DONE RIGHT (Pro) - Schedule alk, calcium, magnesium and trace doses daily, every N days, or on a chosen weekday, with local reminders that fire offline. Tick a dose off in one tap. - IMPORT YOUR ICP LAB RESULTS (Pro) - Your ICP analysis comes back with twenty numbers on it. Import the whole report instead of typing any of them: a PDF, a photo of the printout, or a CSV from Oceamo or Fauna Marin. The app reads the table, converts the units, dates the readings to the day you took the sample, and shows you every value to confirm before a single one is saved. Tested with Oceamo and Fauna Marin. - A REEF-FOCUSED LIVESTOCK JOURNAL - Add corals, fish and inverts by common and scientific name, sorted into SPS, LPS, softies, fish and inverts. Keep a tagged written journal per animal to follow growth, colour and health, and mark anything fragged, sold or lost. - MAINTENANCE AND EQUIPMENT - Log water changes with percentage and cost, skimmer services, glass cleans and media swaps. Keep a list of your lights, pumps, heaters and dosers with install dates and warranty notes. - YOUR DATA STAYS YOURS - Everything is stored locally on your device. Export a full backup to Files, iCloud or Drive anytime, and restore it in one tap. No login that can lock you out. No tracking. No ads. FREE forever: • 1 tank • Unlimited parameter readings • Trend charts and stability • Livestock journal, maintenance and equipment • Full backup and restore Reef Tank Log Pro: • Unlimited tanks • Dose schedules with offline reminders • ICP lab report import - PDF, photo or CSV Logging and backup are always free. Pro is a one-time option too - because we know reefers are done with subscriptions. Built for the hobbyist who treats their reef like the living investment it is. Terms of Use: https://codeensis.com/reeftanklog/terms Privacy Policy: https://codeensis.com/reeftanklog/privacy Monthly and Yearly are auto-renewing subscriptions. Payment is charged to your Apple ID at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Manage or cancel any time in Settings → Apple Account → Subscriptions. Lifetime is a one-time purchase and does not renew.
Screenshots
Verdict
The clearest difference is in-app purchases: Trex AR at none against Reef Tank Log's 3. Trex AR also leads on iOS requirement (13.0 vs 15.0). Reef Tank Log's advantage is update cadence (every 5 days vs every 4 months). On price, 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
Both are free to download. Reef Tank Log sells 3 in-app purchases, starting at $3.99 per month. Trex AR asks for nothing beyond the download.
Trex AR ships an update every 4 months, Reef Tank Log every 5 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.
| Parameter | Trex AR | Reef Tank Log |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (722 ratings) — better | — |
| Positive reviews | 5.7% of reviews | — |
| Number of ratings | 722 — better | — |
| Update frequency | Every 4 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 536 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Trex Co, Inc | CODEENSIS LTD |
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
Reef Tank Log
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Trex AR
No in-app purchases
Reef Tank Log
- Pro Monthly$3.991 Month
- Pro Annual$19.991 Year
- Pro Lifetime$29.99









