Comparison

Reeflo vs ReefNote

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

Head to head
About

Reeflo

Features
Read full description

Reeflo is the focused, beautiful tracker for your saltwater reef aquarium โ€” like Apple Health for your tank. Log a full water test in under 5 seconds. Reeflo pre-fills your last values, so you just tweak what changed and save. Watch your parameters trend over time with clean charts, target zones and out-of-range alerts. โ€ข Quick Log: temperature, salinity, pH, alkalinity, calcium, magnesium, nitrate, phosphate and more โ€ข Beautiful trend charts with target ranges (7/30/90 days) โ€ข Maintenance routines with one-tap completion and reliable reminders โ€ข Livestock inventory with photos and growth timelines โ€ข Dosing helper for Ca / KH / Mg โ€ข Dark-first design made for the reef โ€ข Private by design โ€” your data stays on device and syncs via iCloud Reeflo Pro unlocks unlimited tanks, trends, routines, dosing, livestock and export. Keep your corals thriving. Download Reeflo and dial in your reef. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://develak.com/privacy-policy/

About

ReefNote

Features
Read full description

ReefNote keeps your aquarium on track: log every water parameter, flag anything out of range, and keep dosing and maintenance on schedule. Testing is fast. Pick a parameter, tap the value on a big pad with the right unit (dKH, ppm, SG), and save. Each parameter remembers its last value, so a routine round of tests takes seconds. WHAT YOU GET - Parameter log with target ranges: reef and freshwater presets you can edit per tank, with out-of-range flags the moment you save - Trend charts: every parameter over 30 days, 90 days, or a year, with your target band drawn behind the line and each point coloured by its flag - Dosing and water changes: repeat schedules with clear overdue and due-today states, one tap to mark done - Livestock registry: fish, coral, and inverts with photos, added dates, and notes - Maintenance reminders: a per-task reminder so nothing slips - Tank journal: one timeline that mixes your tests, doses, and events - Tank report: a shareable PDF of parameters versus targets, livestock, and schedule, plus a CSV of every reading (Pro) REEF OR FRESHWATER Set the tank type and ReefNote starts with common target bands for each parameter, then lets you tune every band to the numbers you keep. FREE AND PRO Free includes one tank and 30 tests, with target ranges, trends, the schedule, and the livestock registry. Pro unlocks unlimited tanks, unlimited test history, and the PDF and CSV exports. PRIVATE BY DESIGN Everything stays on your iPhone. No account, no cloud, no tracking. SUBSCRIPTION DETAILS ReefNote Pro is available as a monthly or yearly subscription, or as a one time lifetime purchase. The current price is shown in the app and on this page before you buy. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically until cancelled. Manage or cancel anytime in Settings > Apple Account > Subscriptions; cancellation takes effect at the end of the current period. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Reeflo4 screens
ReefNote4 screens

Verdict

The call

The clearest difference is update cadence: Reeflo at every 6 days against ReefNote's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Reeflo sells 2 in-app purchases, starting at $4.99 per month and ReefNote sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Reeflo ships an update every 6 days, ReefNote every 3 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard1 real difference ยท 5 level
Reeflo versus ReefNote: the parameters behind the verdict, then further details
ParameterReefloReefNote
PriceFreeFree
Update frequencyEvery 6 days โ€” betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 โ€” better18.0
Further details โ€” not scored
Size8 MB6 MB
Age rating4+4+
DeveloperDevelakInnovaLabWorks

In-app purchases

2 purchases

Reeflo

Subscriptions2
  • Reeflo Pro Monthly$4.991 Month
  • Reeflo Pro Annual7 Days trial$29.991 Year
3 purchases

ReefNote

Subscriptions2
  • ReefNote Pro$5.991 Month
  • ReefNote Pro$34.991 Year
One-time1
  • ReefNote Lifetime$2.99

Questions

Is Reeflo free?
Reeflo is free to download, with in-app purchases available.
Is ReefNote free?
ReefNote is free to download, with in-app purchases available.
Do Reeflo or ReefNote have ads?
Neither Reeflo nor ReefNote shows ads.
Which is updated more often, Reeflo or ReefNote?
Reeflo ships an update every 6 days, and ReefNote every 3 weeks. Most recently, Reeflo was updated on October 29, 2026 and ReefNote on October 31, 2026.

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