Reefminder Fish Log vs Aquarium Notepad
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reefminder Fish Log
Easily manage your saltwater aquarium with this intuitive log and inventory app. Track livestock, water changes, equipment, and observations with a timeline-based interface. Ideal for reef keepers who want to document their tank's history.
- Aquarium log and inventory management
- Reef keeping tools
- Tank maintenance reminders
- Timeline-based interface
- Log livestock, water changes, equipment
- Record observations
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Reefminder is the ultimate, easy-to-use aquarium log and inventory management app for your saltwater aquarium. It also provides tools specific to reef keeping, and great for reminders to check your tank. Get it? Reefminder? In the saltwater fish and reef keeping hobby, we invest a lot of time and effort into maintaining our tanks. We all know to keep our eye on things like water quality, chemistry, livestock behavior, equipment performance, and so on. However, we tend to only record these numbers when things go wrong. That’s why experts in the hobby not only monitor their tanks, but they record and document their results. This is what the pros call an Aquarium Log. We have tried keeping a good ol’ fashion paper journal, but when you’re at your local store or out talking with some experts, you can never remember what you wrote down (and what a pain to remember to bring a journal with you). We have also tried some of the other apps out there, but most are over complicated, tedious, and cumbersome. So that’s why we created Reefminder. With Reefminder, you can quickly and easily log every livestock item you add, water change you perform, equipment you check, or just note any interesting observations, all with our amazing timeline based interface. Just tap the “+” button, and all the different “event” types appear as color coded icons. Once you record your event, it is displayed in a beautiful timeline. We think this timeline is the easiest way to quickly view your tanks history at a glance. Reefminder is just the first step in a suite of products to come. So we thank you in advance for being an early adopter. The more you add to your Reefminder log, the more it will benefit you when we release some other products in the future!…Wink wink!
Aquarium Notepad
Manage your aquariums with detailed tracking of water parameters, maintenance schedules, and measurements. This app offers comprehensive tools for serious aquarists to maintain optimal conditions and keep thorough records of their aquatic environments.
- Water parameter tracking
- Maintenance task scheduling
- Measurement logging
- Multiple aquarium support
- Data import/export
- Charts and analytics
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Professional aquarium management made simple. Track water parameters, maintenance tasks, and measurements for your aquarium with comprehensive tools designed for serious aquarists. Features: • Water parameter tracking and history • Maintenance task scheduling with notifications • Measurement logging and trends • Multiple aquarium support • Data import/export capabilities • Beautiful charts and analytics Perfect for both beginners and experienced aquarium enthusiasts who want to maintain optimal water conditions and keep detailed records of their aquatic environments.
Screenshots
Verdict
The clearest difference is rating: Aquarium Notepad at 4.7 against Reefminder Fish Log's 4.3. Aquarium Notepad also leads on review sentiment (100% vs 85%) and update cadence (every 3 days vs weekly). Reefminder Fish Log's advantage is ratings volume (54 vs 3). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Aquarium Notepad holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Reefminder Fish Log has 54 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 85% of Reefminder Fish Log's written reviews are positive against 100% of Aquarium Notepad's.
Reefminder Fish Log ships an update weekly, Aquarium Notepad every 3 days. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.
| Parameter | Reefminder Fish Log | Aquarium Notepad |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (54 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | 85.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 54 — better | 3 |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12 — better |
| Further details — not scored | ||
| Size | 111 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Fanaian | Quantum Technologies Limited Liability Company |
Customer experience
Reefminder Fish Log
Aquarium Notepad
In-app purchases
Reefminder Fish Log
No in-app purchases
Aquarium Notepad
No in-app purchases
Questions
Is Reefminder Fish Log free?
Is Aquarium Notepad free?
Which has better reviews, Reefminder Fish Log or Aquarium Notepad?
Do Reefminder Fish Log or Aquarium Notepad have ads?
Which is updated more often, Reefminder Fish Log or Aquarium Notepad?
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