Fish Tank Buddy is a specialized aquarium calculator app for iOS that provides volume, chemical dosing, and maintenance scheduling tools.
The App DNA
What makes this app unique?
Users hire this app to ensure aquatic environment stability through precise chemical and volume math, reducing the risk of livestock loss due to calculation errors.
For Aquarium hobbyists ranging from beginners to experienced fish keepers requiring precise chemical and volume calculations.
What does it look like?
Key features
Calculates required water and substrate volumes based on user-input tank dimensions.
Determines specific bicarbonate dosage to maintain target pH levels in aquatic environments.
Switches between metric and imperial units for tank dimensions and chemical dosing.
Sends push notifications for scheduled fish feeding, tank cleaning, and water level checks.
How much does it cost?
The app is currently offered as a free utility with no visible in-app purchases or subscription tiers.
Velocity
Dormant developmentopaqueShow more...
The app has not received a single update since its launch on April 6, 2023. With no release activity for over three years, the development momentum is classified as zombie. There is no evidence of ongoing maintenance, feature development, or live operations.
Who built it?
harry bloch
4 apps tracked · Utilities
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Darts Scoreboard ScorekeeperUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Fish Tank Buddy
How's the Utilities market?
Fish Tank Buddy maintains a 5-star rating on iOS, though this is based on a single review. The lack of recent updates since the April 2023 release limits its ability to compete with tools that feature active development.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Fish Tank Buddy
Where is it heading?
The aquarium utility market is consolidating around apps that offer integrated hardware control and AI-driven guidance. Fish Tank Buddy remains in a static state, which will lead to a loss of relevance as users migrate to tools that provide more comprehensive ecosystem management.
- The lack of updates since April 2023 signals a maintenance-mode posture, which prevents the app from competing with rivals that add features quarterly.
- Competitor activity in the aquarium utility space is accelerating, with rivals adding AI and hardware control, which will erode Fish Tank Buddy's market share.
The SWOT
- Bicarbonate calculator provides a specialized chemical dosing tool for pH-sensitive aquatic environments.
- Integration of water parameter logging would capture long-term data trends currently missing from the toolset.
Next best moves
Pivot development to add water parameter logging because competitors like Fish Tank Log use it to drive long-term retention → increase session frequency.
+ 1 more prioritized moveThe counter-intuitive read
The app's lack of updates is not just a maintenance failure…
Read the full takeFeature gaps
Water parameter logging (available in Fish Tank Log but absent here) +2
Since the last report: The app's competitive outlook has declined due to prolonged development stagnation, prompting a shift in strategic priorities toward data-logging features.
Bottom line
Fish Tank Buddy provides a useful, focused utility for chemical dosing, but its lack of updates prevents it from competing with modern, data-driven aquarium management apps, so the PM should prioritize adding parameter logging to remain relevant.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
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