Comparison

Reef Buddy vs ReefLynk

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

Head to head
About

Reef Buddy

Easily log, monitor, and analyze your saltwater aquarium's critical parameters. Get smart insights and personalized advice to maintain a healthy reef tank. Syncs across devices and offers guidance for manual test results.

Highlights
  • Log critical aquarium parameters
  • Monitor KH, salinity, pH, Ca, Mg, and more
  • Analyze data with automated insights
  • Sync data across iPhone and iPad
  • Guidance for manual test kit results
  • Personalized advice with premium subscription
Features
Read full description

Reef Buddy – Track Your Reef Tank With Confidence Reef Buddy is the reef tracker and water test log built for saltwater tank and saltwater aquarium keepers. Log water tests, monitor parameter trends, and understand what is changing in your reef before small swings become real problems. Track Every Essential Reef Parameter Record KH, salinity, pH, Ca, Mg, NO₂, NO₃, PO₄, SiO₂, temperature, and more. Keep a clear aquarium log with visual trends for the values reef keepers watch most. Smart Insights for Saltwater Aquariums Get automated insights from your measurements so you can react earlier, keep your reef tank stable, and make better maintenance decisions. Sync Across Devices All your data is safely stored and automatically synced across your iPhone and iPad. Manual Test Help Enter results from your favorite test kits faster with guided steps designed for reef routines, regular water tests, and day-to-day reef journaling. Unlock Premium with Shrimpy Shrimpy, your reef assistant, unlocks powerful features: • Expert analysis of your tank data • Personalized advice • Photo analysis of your aquarium • Start and continue conversations with Shrimpy for personalized reefing tips Why Reef Keepers Choose Reef Buddy • Built for reef tanks and saltwater aquariums • Clean tracking without unnecessary clutter • Compatible with major test kits, including Red Sea, Salifert, Hanna, and more Subscription Info Shrimpy Premium is available as a monthly or yearly subscription. Payment will be charged to your iTunes account at confirmation of purchase. Subscriptions auto-renew unless cancelled 24 hours before the end of the period. Manage your subscription anytime in your Apple account settings. Terms & Privacy Policy: https://reef-buddy.app

About

ReefLynk

Manage your reef aquarium with this comprehensive app. Track water parameters, schedule maintenance, and catalog your livestock with photos. Syncs across devices and offers email reminders to keep your tank healthy.

Highlights
  • Water parameter tracking
  • Maintenance scheduling
  • Livestock cataloging
  • Real-time device sync
  • Email reminders
Features
Read full description

ReefLynk is the all-in-one reef aquarium management app built for serious reefers. WATER PARAMETER TRACKING Log temperature, pH, alkalinity, calcium, magnesium, ORP, ammonia, nitrate, nitrite, and phosphate. View trends over time with interactive charts so you can spot problems before they become disasters. MAINTENANCE SCHEDULING Create recurring tasks — water changes, filter cleaning, dosing — with customizable frequencies. Get reminders so nothing slips through the cracks. LIVESTOCK MANAGEMENT Catalog your fish, corals, and invertebrates. Track species, quantity, and health status with photos. REAL-TIME SYNC Your data syncs instantly across all your devices. Log on your phone, review on your tablet. EMAIL REMINDERS Opt in to email notifications for upcoming maintenance tasks so you never miss a water change, even when you're away from your phone. Keeping a reef tank healthy requires consistency. ReefLynk replaces spreadsheets, sticky notes, and forgotten reminders with a single app designed specifically for reefers.

Screenshots

Reef Buddy4 screens
ReefLynk4 screens

Verdict

The call

The clearest difference is review sentiment: ReefLynk at 100% against Reef Buddy's 55%. ReefLynk also leads on rating (5.0 vs 3.9) and update cadence (daily vs fortnightly). Reef Buddy's advantage is ratings volume (20 vs 2). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Reef Buddy sells 4 in-app purchases, starting at $0.99 per 7 days and ReefLynk sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ReefLynk holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Reef Buddy has 20 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 55% of Reef Buddy's written reviews are positive against 100% of ReefLynk's.

UpkeepUpdate frequency

Reef Buddy ships an update fortnightly, ReefLynk daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Reef Buddy versus ReefLynk: the parameters behind the verdict, then further details
ParameterReef BuddyReefLynk
PriceFreeFree
Rating3.9 (20 ratings)5.0 (2 ratings) — better
Positive reviews54.5% of reviews100.0% of reviews — better
Number of ratings20 — better2
Update frequencyFortnightlyDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size46 MB22 MB
Age rating4+4+
Developermaxime marinelMICHAEL KARL TAYLOR

Customer experience

Reef Buddy

All ratings20 ratings
Positive70.0%
Neutral5.0%
Negative25.0%
Written reviews11 reviews
Positive54.5%
Neutral0.0%
Negative45.5%

ReefLynk

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Reef Buddy

Subscriptions4
  • Reef Buddy Pro Weekly$0.997 Days
  • Reef Buddy Pro3 Days trial$1.991 Month
  • Reef buddy pro month$3.991 Month
Show 1 more
  • Reef buddy pro annual3 Days trial$44.991 Year
2 purchases

ReefLynk

Subscriptions2
  • ReefLynk Pro$2.991 Month
  • ReefLynk Pro Yearly$29.991 Year

Questions

Is Reef Buddy free?
Reef Buddy is free to download, with in-app purchases available.
Is ReefLynk free?
ReefLynk is free to download, with in-app purchases available.
Which has better reviews, Reef Buddy or ReefLynk?
ReefLynk is rated higher. Reef Buddy averages 3.9 out of 5 from 20 ratings, while ReefLynk averages 5.0 from 2 ratings.
Do Reef Buddy or ReefLynk have ads?
Neither Reef Buddy nor ReefLynk shows ads.
Which is updated more often, Reef Buddy or ReefLynk?
Reef Buddy ships an update fortnightly, and ReefLynk daily. Most recently, Reef Buddy was updated on November 3, 2026 and ReefLynk on October 31, 2026.

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