Comparison

INKBIRD 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

INKBIRD

Transform your home into a smart environment with automated control of temperature and humidity. Remotely monitor food temperatures and receive custom alarms for perfect cooking. Create a connected home network for a more enjoyable and convenient lifestyle.

Highlights
  • Smart home automation
  • Temperature and humidity control
  • Remote appliance monitoring
  • Customizable temperature alarms
  • Family network setup
  • Intuitive user interface
Features
Read full description

INKBIRD helps you create a smart home, smart life. We make hard things simple by convenient and fast operation, clear and intuitive interface, considerate and practical functions. Here, you can smartly make home appliances intelligent and automated adjustment of temperature and humidity so as create an optimal environment for your family. Here, you can remotely monitor the food temperature and customize temperature alarms to always cook delicious meals for your family. Here, you can set up a family network of things of your own and experience a more wonderful, more enjoyable life.

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
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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

INKBIRD4 screens
Reef Diary Aquarium Management4 screens

Verdict

The call

The clearest difference is rating: INKBIRD at 3.7 against Reef Diary Aquarium Management's 1.0. INKBIRD also leads on in-app purchases (none vs 4) and ratings volume (7K vs 1). 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. Reef Diary Aquarium Management sells 4 in-app purchases, starting at $2.99 per month. INKBIRD asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

INKBIRD holds the better App Store score, 3.7 against 1.0. That said, the two scores are not equally well evidenced: INKBIRD has 7K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 23% of INKBIRD's written reviews are positive against 0% of Reef Diary Aquarium Management's.

UpkeepUpdate frequency

INKBIRD ships an update fortnightly, Reef Diary Aquarium Management monthly. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
INKBIRD versus Reef Diary Aquarium Management: the parameters behind the verdict, then further details
ParameterINKBIRDReef Diary Aquarium Management
PriceFreeFree
Rating3.7 (7K ratings) — better1.0 (1 ratings)
Positive reviews22.8% of reviews — better0.0% of reviews
Number of ratings7K — better1
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS15.0 — better15.1
Further details — not scored
Size409 MB58 MB
Age rating4+4+
DeveloperShenzhen Inkbird Technology Co. LtdChristian Buchholz

Customer experience

INKBIRD

All ratings6,972 ratings
Positive66.3%
Neutral4.1%
Negative29.6%
Written reviews824 reviews
Positive22.8%
Neutral9.7%
Negative67.5%

Reef Diary Aquarium Management

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

Bugs and requests

INKBIRD

Reported bugs

5 issues
  • Custom menu names reset after exiting app
  • Widgets not working as expected
  • Frequent app crashes and disconnections
  • Sensor temperature readings inconsistent
  • Unable to remove/delete connected devices

Requested features

5 requests
  • Add dark mode option
  • Improve temperature graph functionality
  • Allow custom alarm sounds
  • Implement low temperature alerts
  • Add support for more devices

Reef Diary Aquarium Management

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

INKBIRD

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 INKBIRD free?
INKBIRD 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, INKBIRD or Reef Diary Aquarium Management?
INKBIRD is rated higher. INKBIRD averages 3.7 out of 5 from 7K ratings, while Reef Diary Aquarium Management averages 1.0 from 1 ratings.
Do INKBIRD or Reef Diary Aquarium Management have ads?
Neither INKBIRD nor Reef Diary Aquarium Management shows ads.
Which is updated more often, INKBIRD or Reef Diary Aquarium Management?
INKBIRD ships an update fortnightly, and Reef Diary Aquarium Management monthly. Most recently, INKBIRD was updated on November 8, 2026 and Reef Diary Aquarium Management on October 30, 2026.

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