Comparison

Aquarist's Notes vs Aquarium Tank Tracker

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

Head to head
About

Aquarist's Notes

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Aquarium health monitoring app. The Aquarist's Notes allows you to record important water parameters such as temperature, pH, hardness and other factors that affect fish and plant health, add notes and keep a diary. You can add photos from the system photo album directly to the app and add comments or save documents such as aquarium inventory guides. All of this information will be easily accessible and organized right in the app. The Aquarist's Notes will make calculations related to water treatment easier. The app provides accurate calculations of the amount of additives and chemicals you need for proper water treatment in aquariums. Calculators are available for calculating water volume depending on tank dimensions and amount of decorations, for unit conversions and more. Reminders and a calendar will simplify your aquarium maintenance planning and you'll never forget anything important again. Thanks to iCloud, all information can be available on all your devices. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://aquariumnote.lvslo.eu/app-privacy.html

About

Aquarium Tank Tracker

Easily manage your aquarium hobby with this comprehensive tracking tool. Log water changes, document your aquascaping progress with photos, and maintain a detailed inventory of your fish and plants. Receive smart reminders to ensure your aquatic ecosystem thrives.

Highlights
  • Visual timeline and journey tracking
  • Smart water change reminders
  • Live stock and species database
  • Logbook for notes and observations
  • Aquascaping photo documentation
  • Maintenance history tracking
Features
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Master your aquarium hobby with AquaLog. The all-in-one pocket assistant to track water changes, document your aquascaping journey, and keep your fish healthy. Never miss a maintenance day again. Building a thriving ecosystem requires consistency. Whether you are running a high-tech planted tank, a simple betta bowl, or a community aquarium, AquaLog makes management effortless and visual. Stop relying on messy spreadsheets or sticky notes. Turn your smartphone into a powerful aquarium computer. WHY AquaLog? AquaLog isn't just a data logger; it’s a visual journal for your tank. We combine smart reminders with a beautiful timeline feature to help you see your tank’s evolution from Day 1 to today. KEY FEATURES: - VISUAL TIMELINE & JOURNEY Watch your aquascape grow! Log photos of your tank regularly and create a stunning "Before & After" timeline. Compare Day 1 vs. Today with a timelapse widget. Share your tank's transformation card directly to Instagram Stories or social media. Create a visual diary of your plants, coral growth, or hardscape changes. - SMART WATER CHANGE TRACKER Consistency is the key to clear water and healthy fish. Get timely notifications when a water change is due. Log water changes in seconds with our quick-action widget. Track your maintenance history and keep your ecosystem stable. - LIVE STOCK & SPECIES DATABASE Manage your inventory and learn about your inhabitants. Add your Fish, Plants, Shrimps, and Snails to your tank inventory. Access our built-in Species Database to view care requirements. Check ideal tank size, water parameters, and temperament for hundreds of species. - LOGBOOK & QUICK NOTES Never forget the details. Take important notes (e.g., medication dosage, light schedule). Keep a history of treatments, observations, or equipment changes. PERFECT FOR ALL HOBBYISTS: Freshwater: Community tanks, Cichlids, Goldfish, and more. Aquascaping: Track plant growth. Nano Tanks: Shrimp keepers and Betta lovers. Download AquaLog today and build the aquarium of your dreams! Questions or Feedback? We are building AquaLog for you. If you have feature requests or issues, please contact us from the settings menu. Happy fishkeeping! Privacy Policy : https://www.demirelrecep.com/apps/aqualog/privacy-policy EULA : https://www.demirelrecep.com/apps/aqualog/terms-of-conditions

Screenshots

Aquarist's Notes4 screens
Aquarium Tank Tracker4 screens

Verdict

The call

The clearest difference is update cadence: Aquarist's Notes at every 6 days against Aquarium Tank Tracker's every 3 weeks. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Aquarist's Notes sells 2 in-app purchases, starting at $1.99 per month and Aquarium Tank Tracker sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Aquarist's Notes ships an update every 6 days, Aquarium Tank Tracker every 3 weeks. Both last shipped on October 30, 2026.

Scorecard1 real difference · 9 level
Aquarist's Notes versus Aquarium Tank Tracker: the parameters behind the verdict, then further details
ParameterAquarist's NotesAquarium Tank Tracker
PriceFreeFree
Rating—3.7 (3 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS16.415.1 — better
Further details — not scored
Size16 MB107 MB
Age rating4+4+
DeveloperLudek SloufRecep Demirel

In-app purchases

2 purchases

Aquarist's Notes

Subscriptions2
  • Monthly subscription7 Days trial$1.991 Month
  • Annual subscription1 Month trial$9.991 Year
2 purchases

Aquarium Tank Tracker

Subscriptions2
  • AquaLog Pro: Unlimited Tanks$3.991 Month
  • AquaLog Pro Annual: Unlimited Tanks$24.991 Year

Questions

Is Aquarist's Notes free?
Aquarist's Notes is free to download, with in-app purchases available.
Is Aquarium Tank Tracker free?
Aquarium Tank Tracker is free to download, with in-app purchases available.
Do Aquarist's Notes or Aquarium Tank Tracker have ads?
Neither Aquarist's Notes nor Aquarium Tank Tracker shows ads.
Which is updated more often, Aquarist's Notes or Aquarium Tank Tracker?
Aquarist's Notes ships an update every 6 days, and Aquarium Tank Tracker every 3 weeks. Most recently, Aquarist's Notes was updated on October 30, 2026 and Aquarium Tank Tracker on October 30, 2026.

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