Comparison

ReefCMD vs Tanksmith

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

Head to head
About

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.

Highlights
  • Track water parameters (alkalinity, calcium, etc.)
  • Log dosing and maintenance
  • Reef tank Health Score
  • Animal and pest library
  • Controller integration
Features
Read full description

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

About

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.

Highlights
  • 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)
Features
Read full description

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

ReefCMD4 screens
Tanksmith4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

ReefCMD ships an update every 3 weeks, Tanksmith fortnightly. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 8 level
ReefCMD versus Tanksmith: the parameters behind the verdict, then further details
ParameterReefCMDTanksmith
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size18 MB5 MB
Age rating4+4+
DeveloperReefCMD LLCOMAR DANIEL GRAZIANO

In-app purchases

2 purchases

ReefCMD

Subscriptions2
  • ReefCMD Pro — Monthly$6.991 Month
  • ReefCMD Pro — Annual$69.991 Year
1 purchases

Tanksmith

One-time1
  • Tanksmith Pro$9.99

Questions

Is ReefCMD free?
ReefCMD is free to download, with in-app purchases available.
Is Tanksmith free?
Tanksmith is free to download, with in-app purchases available.
Which has better reviews, ReefCMD or Tanksmith?
ReefCMD and Tanksmith are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do ReefCMD or Tanksmith have ads?
Neither ReefCMD nor Tanksmith shows ads.
Which is updated more often, ReefCMD or Tanksmith?
ReefCMD ships an update every 3 weeks, and Tanksmith fortnightly. Most recently, ReefCMD was updated on October 28, 2026 and Tanksmith on November 5, 2026.

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