ReefCMD vs Tanksmith
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReefCMD
Manage your saltwater aquarium parameters, dosing, and livestock with this app. Track water quality, log maintenance, and get a health score for your reef tank. Features an animal library and controller integration.
- Track water parameters (alkalinity, calcium, etc.)
- Log dosing and maintenance
- Reef tank Health Score
- Animal and pest library
- Controller integration
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ReefCMD is the modern way to manage your reef tank — water parameters, dosing, livestock, and controller data in one fast, clean app built for saltwater aquarium keepers. Stop juggling spreadsheets, notebooks, and clunky web or controller apps. Integrate your Apex (or log a test in seconds), watch your trends, and catch problems before your corals do. WHAT YOU CAN DO • Track every water parameter — alkalinity, calcium, magnesium, salinity, pH, nitrate, phosphate, temperature, and ORP — with clear trend charts over time. • Log dosing, water changes, and maintenance so nothing slips through the cracks. • Get a reef tank Health Score that turns your numbers into a single, at-a-glance read on tank stability. • Browse a deep animal library of fish, coral, and invertebrates — plus a pest guide — to plan your stocking list and wish list. • Apex now and built controller-neutral, with more devices on the way. BUILT FOR REEFERS Whether you run a nano reef or a mixed-reef SPS display, ReefCMD keeps your reef tank on track. Fast logging, honest charts, and the water parameters that actually matter — alkalinity, calcium, magnesium, and salinity — front and center. PRICING ReefCMD is free to try. A paid subscription unlocks the full app: unlimited logging, full history, the Health Score, the Bridge, and the complete animal library. Subscriptions renew automatically; cancel anytime in your account settings. Stay humble — the ocean always wins. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Questions? info@reefcmd.com
Tanksmith
This app helps reef aquarium owners meticulously track water parameters, equipment maintenance, and livestock with photos. It offers detailed logging for water chemistry, test kits, and salt batches, with an optional pro version for advanced features like multi-tank management and PDF reporting.
- Offline reef tank logbook
- Water parameter tracking
- Equipment service logging
- Livestock and coral photo management
- Test kit and salt batch recording
- Multi-tank management (Pro)
- Tank Report PDF generation (Pro)
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Tanksmith is an offline logbook for reef aquariums. Keep water readings, equipment service, livestock and coral photos together on your device. No account, app cloud sync, subscription or ads. Optional usage analytics stay off until you choose to enable them. FREE FEATURES Log alkalinity, calcium, magnesium, nitrate, phosphate, salinity, temperature, pH, ORP, ammonia and nitrite. See readings and trends over time; Tanksmith does not prescribe universal target ranges. Record test-kit brands, lot numbers and label-based expiry dates, plus the salt batch you are using. Set equipment service intervals and keep a livestock list with photos, sources and placement notes. The free tier includes one tank, 40 parameter readings and three livestock entries per tank. TANKSMITH PRO — ONE-TIME PURCHASE Manage multiple tanks, with unlimited readings and livestock. Add dated coral photos, compare two images side by side, and record frag lineage. Create a Tank Report PDF with recent trends, livestock and equipment-service status. Dosing analysis shows the measured net daily trend in alkalinity and calcium. After enough consistent readings, an unchanged routine, and confirmation of the exact liquid Red Sea Foundation A/B/C preparation and actual water volume, Tanksmith may show a bounded additional estimate for that formulation only. This is not a total daily prescription. Randy Recipe #1, BRS 2-Part, Aquaforest Component 1+/2+/3+, ESV B-Ionic and Tropic Marin All-For-Reef show product guidance but no automatic mL estimate. Follow the product label, adjust gradually and retest before dosing, especially if you followed an earlier estimate. WHY OFFLINE Tank records are stored on your device. If you share a Tank Report PDF, iOS sends the report to the destination you select. Photos are accessed only when you choose to attach one. Optional usage analytics use Google Analytics for Firebase and exclude tank records, notes, search text, health information and advertising identifiers. You can change your choice in Settings. Your tank history is yours to keep.
Screenshots
Verdict
The clearest difference is iOS requirement: ReefCMD at 15.0 against Tanksmith's 17.0. On price, rating, ratings volume and update cadence 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. ReefCMD sells 2 in-app purchases, starting at $6.99 per month and Tanksmith sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for ReefCMD against 5.0 for Tanksmith. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
ReefCMD ships an update every 3 weeks, Tanksmith fortnightly. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.
| Parameter | ReefCMD | Tanksmith |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 18 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | ReefCMD LLC | OMAR DANIEL GRAZIANO |
In-app purchases
ReefCMD
- ReefCMD Pro — Monthly$6.991 Month
- ReefCMD Pro — Annual$69.991 Year
Tanksmith
- Tanksmith Pro$9.99








