Comparison

Fish Tank Tracker vs Tanksmith

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

Head to head
About

Fish Tank Tracker

Features
Read full description

Fish Tank Tracker is the lab notebook your aquarium deserves: log a full water test in seconds, watch the trends, and never miss another water change. Built for reef, FOWLR, saltwater, freshwater and brackish tanks — and built to work entirely offline, with no account and no subscription. TEN PARAMETERS, LOGGED IN SECONDS - Temperature, salinity (ppt or specific gravity), pH, ammonia, nitrite, nitrate, alkalinity, calcium, magnesium and phosphate - Quick mode for the everyday basics, Full Test for lab day - Optimal ranges and your last reading shown while you type, notes on every test - A reading that looks like a typo (42 for 420) is questioned before it's saved - Type phosphorus in ppb straight from a Hanna ULR checker - Type alkalinity in dKH, meq/L or ppm, as your test kit reads it - Set your own target range for any parameter, tank by tank - Log a test you took yesterday, or fix one you mistyped - Share any test as text, for a second opinion on the forums CHARTS THAT TELL THE STORY - Every parameter charted against its optimal band, over 30 days, 90 days, a year or all time - Tap a chart for any reading, with your water changes marked on it - Color-coded status on the dashboard: optimal, acceptable or critical at a glance - Every reading shows how it moved since your last test - Spot a slow drift weeks before it becomes a problem LIVESTOCK JOURNAL - Fish, corals and invertebrates with species names and photos - Purchase dates, quantity, cost and health status EQUIPMENT & MAINTENANCE - An inventory of lights, pumps, heaters, skimmers and more - Recurring tasks per piece of equipment: clean the skimmer cup, swap filter floss, wipe the lens - A reminder notification when a task comes due, plus a weekly test-day reminder on the day and time you choose WATER CHANGES & DOSING - Log water changes by percent or volume, even from earlier days, and fix them later - Dosing calculator for alkalinity, calcium and magnesium — pick your product, get millilitres for your exact water volume - Big corrections are split into daily doses, never faster than the product's label allows - Dose straight from a test: the calculator starts from your latest reading and your own target - Water change calculator: how much salt to mix, and how far nitrate and phosphate will drop YOURS, OFFLINE - Everything is stored in a local database on your device - Free backup and restore: save everything to Files or Drive, and move it to a new phone - No account, no login, no cloud, no tracking — and no ads - Gallons or liters for each tank, °F or °C FREE AND PRO The free version is a complete toolkit for one tank: all ten parameters with charts, a month of history, five livestock entries, and every equipment, maintenance and dosing tool. Pro is a single one-time purchase — never a subscription — and unlocks unlimited tanks, unlimited history, unlimited livestock, trend analysis with stability scores, and CSV export. Whether you are cycling your first ten-gallon or dialing in a mature reef, Fish Tank Tracker keeps the numbers so you can enjoy the fish. Privacy policy: https://fish.chinesepowered.com/privacy.html

About

Tanksmith

This offline logbook helps reef tank enthusiasts meticulously track water parameters, equipment maintenance, and livestock. It offers detailed logging for various parameters and test kits, with advanced features like dosing intelligence and coral growth timelines available through a one-time purchase.

Highlights
  • Offline parameter logging
  • Test kit & salt batch tracking
  • Equipment service tracker
  • Livestock list with photos
  • Dosing intelligence
  • Coral photo timeline & lineage
  • Tank Report PDF generation
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, cloud sync, subscription, ads or analytics. 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. If your current dosing and other conditions have not changed, and you confirm the exact product preparation and actual water volume, Tanksmith may estimate an additional amount above your unchanged routine for supported formulations: Randy Recipe #1, BRS 2-Part, Aquaforest Component 1+/2+/3+ and liquid Red Sea Foundation A/B/C. This is not a total daily prescription. 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. No third-party analytics SDK is used. Your tank history is yours to keep.

Screenshots

Fish Tank Tracker4 screens
Tanksmith4 screens

Verdict

The call

Fish Tank Tracker and Tanksmith are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Fish Tank Tracker sells 1 one-off in-app purchase and Tanksmith sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fish Tank Tracker ships an update every 4 weeks, Tanksmith fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
Fish Tank Tracker versus Tanksmith: the parameters behind the verdict, then further details
ParameterFish Tank TrackerTanksmith
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 4 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size54 MB3 MB
Age rating4+4+
DeveloperNelson LaiOMAR DANIEL GRAZIANO

In-app purchases

1 purchases

Fish Tank Tracker

One-time1
  • Lifetime Pro Pack$9.99
1 purchases

Tanksmith

One-time1
  • Tanksmith Pro$9.99

Questions

Is Fish Tank Tracker free?
Fish Tank Tracker is free to download, with in-app purchases available.
Is Tanksmith free?
Tanksmith is free to download, with in-app purchases available.
Do Fish Tank Tracker or Tanksmith have ads?
Neither Fish Tank Tracker nor Tanksmith shows ads.
Which is updated more often, Fish Tank Tracker or Tanksmith?
Fish Tank Tracker ships an update every 4 weeks, and Tanksmith fortnightly. Most recently, Fish Tank Tracker was updated on October 24, 2026 and Tanksmith on October 25, 2026.

Other comparisons