Comparison

Reef.Tools vs Reef Diary Aquarium Management

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

Head to head
About

Reef.Tools

This app simplifies reef tank maintenance with science-backed tools. It offers a precision dosing calculator for over 30 elements, customizable schedules, and insights into water chemistry. Compare your tank's parameters to natural ocean values.

Highlights
  • Precision dosing calculator for 30+ elements
  • Customizable dosing schedules
  • Reef chemistry insights
  • Support for multiple brands and custom targets
  • Comparison to natural ocean parameters
Features
Read full description

Reef.Tools: Simplify reef-keeping, whether you're a novice or a seasoned aquarist. Maintain a thriving reef tank with ease using science-backed tools and insights. Key Features: Precision Dosing Calculator: Accurately dose 30+ elements with support for multiple brands and safe reference levels. Comprehensive Schedules: View day-to-day dosing plans and customize as needed. Chemistry Insights: Discover the importance, risks, and roles of each element in your reef. Customizable Preferences: Use your preferred products, set custom targets, or exclude elements you don’t dose. Ocean References: Compare your tank’s parameters to natural seawater values from locations like the Red Sea and Fiji. Built by reefers, for reefers, Reef.Tools removes the guesswork, letting you focus on what matters most: a thriving, vibrant reef. Your reef. Your rules. Simplified.

About

Reef Diary Aquarium Management

Manage your reef or freshwater aquarium with this comprehensive tool. Track water parameters, schedule maintenance, and monitor your aquatic life and equipment. Works offline to keep your ecosystem healthy and thriving.

Highlights
  • Smart parameter tracking for reef and freshwater
  • Visual trend charts for water parameters
  • Multiple tank support
  • Equipment and livestock inventory
  • Maintenance task scheduler with reminders
  • Offline functionality
Features
Read full description

ReefDiary helps reef keepers stay organized, spot changes earlier, and build better care habits for saltwater aquariums. Whether you are maintaining your first nano reef or managing a mature mixed reef, ReefDiary gives you a calm, structured place to record what matters and understand how your aquarium is doing over time. Log key water parameters such as temperature, salinity, pH, alkalinity, calcium, magnesium, nitrate, phosphate, and more. Keep your test history organized so you can review trends instead of relying on memory or scattered notes. Create maintenance tasks for water changes, filter cleaning, dosing, feeding, testing, equipment checks, livestock care, and recurring routines. ReefDiary helps you keep track of what needs attention so important aquarium care does not slip through the cracks. Manage livestock with dedicated records for fish, coral, invertebrates, and other reef inhabitants. Add names, species details, care notes, purchase dates, observations, and status updates so your tank history stays easy to follow. Use the dashboard to get a quick overview of your reef. See recent activity, upcoming tasks, current health signals, and the information you need most when checking in on your aquarium. Review analytics and health insights to better understand your tank’s stability. ReefDiary turns your logs into useful patterns so you can notice parameter swings, track progress, and make more confident reef keeping decisions. Record observations, changes, and important events as they happen. Add notes after testing, dosing, livestock additions, equipment changes, coral placement, or unusual behavior so you always have context for future decisions. ReefDiary is designed for hobbyists who want less guesswork and more consistency. Instead of jumping between spreadsheets, reminders, notebooks, and photos, you can keep your reef diary in one dedicated place built around aquarium care. Use ReefDiary to: Track water test results over time Monitor aquarium health and stability Plan and complete maintenance tasks Keep livestock records organized Record dosing, feeding, and care notes Review trends and recent changes Build a reliable history of your reef Stay consistent with routine tank care Reef keeping rewards patience, observation, and consistency. ReefDiary helps support those habits by making it easier to document your tank, understand what changed, and stay ahead of maintenance. Start building a clearer history of your reef today with ReefDiary. reefdiary.io SUBSCRIPTIONS MoneyDiary Pro Monthly • 1-month auto-renewable subscription • Price is displayed in your local currency before purchase. MoneyDiary Pro Yearly • 1-year auto-renewable subscription • Price is displayed in your local currency before purchase. MoneyDiary Enterprise Monthly • 1-month auto-renewable subscription • Price is displayed in your local currency before purchase. MoneyDiary Enterprise Yearly • 1-year auto-renewable subscription • Price is displayed in your local currency before purchase. Payment will be charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current billing period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscriptions at any time in your App Store Account Settings. Privacy Policy: https://moneydiary.io/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Reef.Tools4 screens
Reef Diary Aquarium Management4 screens

Verdict

The call

The clearest difference is rating: Reef.Tools at 3.0 against Reef Diary Aquarium Management's 1.0. Reef.Tools also leads on in-app purchases (none vs 4) and update cadence (daily vs every 5 weeks). On price, review sentiment, ratings volume and ads 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. Reef Diary Aquarium Management sells 4 in-app purchases, starting at $2.99 per month. Reef.Tools asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Reef.Tools holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

Reef.Tools ships an update daily, Reef Diary Aquarium Management every 5 weeks. The most recent releases landed on June 7, 2026 and September 3, 2026 respectively.

Scorecard4 real differences · 6 level
Reef.Tools versus Reef Diary Aquarium Management: the parameters behind the verdict, then further details
ParameterReef.ToolsReef Diary Aquarium Management
PriceFreeFree
Rating3.0 (2 ratings) — better1.0 (1 ratings)
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings2 — better1
Update frequencyDaily — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.115.1
Further details — not scored
Size32 MB57 MB
Age rating4+4+
DeveloperIvena LLCChristian Buchholz

Customer experience

Reef.Tools

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Reef Diary Aquarium Management

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Reef.Tools

No in-app purchases

4 purchases

Reef Diary Aquarium Management

Subscriptions4
  • Reef Diary - Monthly$2.991 Month
  • Reef Diary - Yearly$24.991 Year
  • Enterprise Monthly Subscription$89.991 Month
Show 1 more
  • ReefDiary Yearly Enterprise$699.001 Year

Questions

Is Reef.Tools free?
Reef.Tools is free to download, with no in-app purchases.
Is Reef Diary Aquarium Management free?
Reef Diary Aquarium Management is free to download, with in-app purchases available.
Which has better reviews, Reef.Tools or Reef Diary Aquarium Management?
Reef.Tools is rated higher. Reef.Tools averages 3.0 out of 5 from 2 ratings, while Reef Diary Aquarium Management averages 1.0 from 1 ratings.
Do Reef.Tools or Reef Diary Aquarium Management have ads?
Neither Reef.Tools nor Reef Diary Aquarium Management shows ads.
Which is updated more often, Reef.Tools or Reef Diary Aquarium Management?
Reef.Tools ships an update daily, and Reef Diary Aquarium Management every 5 weeks. Most recently, Reef.Tools was updated on June 7, 2026 and Reef Diary Aquarium Management on September 3, 2026.

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