Comparison

Aquarist's Notes vs ReefPilot ai

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

ReefPilot ai

This app helps reef aquarium enthusiasts manage their tanks. It tracks water parameters, provides AI-driven insights and maintenance reminders, and logs expenses. It also includes a suite of tools like AI chat and a livestock gallery.

Highlights
  • Water parameter tracking
  • AI-powered insights and warnings
  • Smart maintenance reminders
  • Expense and cost tracking
  • AI chat assistant
  • Livestock gallery
  • Tank photo timeline
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ReefPilot is the all-in-one app for reef aquarium keepers. TRACK EVERY PARAMETER Log salinity, pH, alkalinity, calcium, magnesium, nitrate, and more. See trends over time and catch problems before they hurt your tank. AI-POWERED INSIGHTS Get personalized warnings and coaching the moment your chemistry drifts out of range. Our AI spots patterns you'd miss on paper. NEVER MISS MAINTENANCE Smart reminders for water changes, filter media, dosing, and cleaning — on weekly, biweekly, and monthly schedules. KNOW WHAT YOUR REEF COSTS Track spending, recurring costs, and purchases. Every livestock addition, every dose, every piece of equipment — in one place. YOUR FULL REEF TOOLKIT AI chat, journal, calculators, livestock gallery, milestones, tank photo timeline, and dozens more tools built in. Built by a reef keeper, for reef keepers. Dark mode always on. iPhone and iPad.

Screenshots

Aquarist's Notes4 screens
ReefPilot ai4 screens

Verdict

The call

The clearest difference is in-app purchases: ReefPilot ai at none against Aquarist's Notes's 2. Aquarist's Notes's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. ReefPilot ai asks for nothing beyond the download.

UpkeepUpdate frequency

Aquarist's Notes ships an update every 6 days, ReefPilot ai every 3 weeks. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
Aquarist's Notes versus ReefPilot ai: the parameters behind the verdict, then further details
ParameterAquarist's NotesReefPilot ai
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.416.0 — better
Further details — not scored
Size16 MB5 MB
Age rating4+4+
DeveloperLudek SloufYakov Wider

In-app purchases

2 purchases

Aquarist's Notes

Subscriptions2
  • Monthly subscription7 Days trial$1.991 Month
  • Annual subscription1 Month trial$9.991 Year
None

ReefPilot ai

No in-app purchases

Questions

Is Aquarist's Notes free?
Aquarist's Notes is free to download, with in-app purchases available.
Is ReefPilot ai free?
ReefPilot ai is free to download, with no in-app purchases.
Do Aquarist's Notes or ReefPilot ai have ads?
Neither Aquarist's Notes nor ReefPilot ai shows ads.
Which is updated more often, Aquarist's Notes or ReefPilot ai?
Aquarist's Notes ships an update every 6 days, and ReefPilot ai every 3 weeks. Most recently, Aquarist's Notes was updated on September 30, 2026 and ReefPilot ai on October 1, 2026.

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