Comparison

AquaticLog vs Mobius

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

Head to head
About

AquaticLog

Manage your aquarium with this comprehensive platform. Track water parameters, schedule maintenance, log livestock, and document your tank's progress with photos and videos. Connect controllers for automatic data import and sync across devices.

Highlights
  • Water parameter tracking
  • Smart reminders for maintenance
  • Livestock management
  • Equipment and dosing logs
  • Controller integration
  • Photo and video diary
  • Community features
Features
Read full description

AquaticLog is the complete companion for every aquarium you keep. Whether you run a single planted tank, a peaceful community aquarium, or a full-blown reef, AquaticLog helps you keep your water stable, your livestock thriving, and your routine on track. ONE ACCOUNT, EVERY DEVICE Your log is stored in your AquaticLog account, not on your phone. Sign in on a new iPhone, an iPad, or the web at aquaticlog.com and everything is already there. Aquarists have trusted AquaticLog with their records for over 13 years. Swipe between aquariums right from the main tank view. Keep one or several tanks visible on your iPhone Home Screen with configurable widgets. WATER PARAMETERS Log pH, temperature, ammonia, nitrite, nitrate, phosphate, salinity, alkalinity, calcium, magnesium and more. Watch every reading on clear trend charts so you can catch a swing before it ever reaches your fish or corals. Connect a Neptune Apex, Hydros, AquaWiz or Seneye and supported readings flow in automatically every hour. Select and delete multiple inaccurate or duplicate readings from a parameter’s history in one step. LIVESTOCK AND PLANTS Build a detailed record of every fish, coral, invertebrate, plant and amphibian you own. Snap a photo the moment you add a new fish or coral, or pick one from your library. Track sex, temperament, diet, difficulty and reef-safety, and move inhabitants between tanks as your collection grows. MAINTENANCE MADE SIMPLE Schedule water changes, dosing, feeding, testing and equipment cleaning. Smart reminders make sure nothing slips, and a single tap logs the job as done. End a repeating schedule on a date or after a set count, and see your maintenance time per day and week. DOSING AND FEEDING Set up dosing and feeding programs, track supplements, and keep a precise history of exactly what went into your tank and when. Re-dose additives, repeat feedings and repeat water changes in one tap, prefilled with your last amounts. WATER CHANGES AND RO/DI Record every water change and keep an eye on your RO/DI output so your source water stays dialed in. PHOTO TIMELINE Document growth and coloration over time and share your progress or ask for help on the community forum. ADVANCED TESTING Log ICP water analyses and PAR light readings to fine-tune even the most demanding reef. Track test-kit reagents: every logged test counts one down, and the app warns you before a kit runs dry. EQUIPMENT Keep a full inventory of pumps, lights, filters and more, with ratings and reviews to guide your next upgrade. Browse the product catalog by category or brand, see how many tanks run each product, and add one to your tank or shopping list straight from its page. A spending report totals what you've paid per store across livestock and equipment, filterable by tank and date range (Pro). EXPLORE AND CONNECT Search public tanks by what actually lives in them — look for a torch coral in the 15-30 gallon range and see how other nano reefs are scaped. Filter by tank style (mixed reef, SPS, LPS, soft coral, planted, macro algae, fish only), size, water type and recent activity, and open any tank to see its photos, parameters, gear and livestock. Browse a growing database of species and products, read and write reviews, like and comment on photos, and earn achievements as you go. Make your tank public to share its link, or copy a snapshot of its parameters, livestock and gear when asking for advice. Available in English, German, Spanish, French, Italian, Dutch, Polish, Russian, Ukrainian and Brazilian Portuguese. Start for free — new accounts log water parameters without limits for their first 30 days — then upgrade to Pro for advanced tracking and tools. The yearly plan starts with a 7-day free trial. Get a daily AI suggestion based on your aquarium’s inhabitants, readings and care history. Privacy Policy: https://www.aquaticlog.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Mobius

This app provides intelligent control for aquarium equipment, simplifying management of multiple tanks. Create custom scenes, schedules, and access quick status updates to maintain your aquatic environment with ease.

Highlights
  • Manage multiple tanks
  • Create custom scenes
  • Drag-and-drop scheduling
  • Lighting control with templates
  • Flow control for pumps
  • Dosing automation and tracking
Features
Read full description

Mobius® is an innovative control platform for your EcoTech Marine products. A core rethinking of how products connect and function make Mobius one of the simplest and smartest control apps you'll ever use. Manage multiple tanks and get quick status updates from dashboard widgets. Easily create Scenes that are accessible to run from the dashboard. Scenes make repetitive tasks as simple as tapping a button. Creating schedules is a snap with Mobius's drag and drop interface. DASHBOARD - Run and create custom scenes using your equipment to make repetitive tasks easy. - Configure and organize your widgets so you can stay current with what is happening in your tank. - Quick access to your devices. LIGHTING - The lighting control interface makes creating a schedule easier than ever. - Proven templates make sure your tank gets off to a great start! - Use our coral acclimation mode to welcome your new livestock. - Save & share your customized templates. FLOW - Use our easy schedule editing interface to customize your Vectra & VorTech schedule. - Utilize all of our great pump modes like ReefCrest, Lagoon and Tidal Swell. - Initiate Feed mode to reduce the aquarium flow for spot-feeding. - Easily calibrate your Vectra with our simple walkthrough. DOSING - Auto Mode: Tell us the additive you're dosing and how much, we'll take care of when based on proven best practices. - Manual Mode: You're in control. Specify dosage and duration or rate. - Continuous Mode: Set a dosing rate, and your Versa will dose as long as it has power. - Easy Calibration - Keep track of how much additive is left in the containers, so you don't run out. - Need a one-time dose? Use Instant Dose to dose your tank quickly.

Screenshots

AquaticLog4 screens
Mobius4 screens

Verdict

The call

The clearest difference is review sentiment: AquaticLog at 71% against Mobius's 27%. AquaticLog also leads on rating (4.2 vs 2.0) and update cadence (weekly vs every 2 months). Mobius's advantage is in-app purchases (none vs 3) and iOS requirement (15.6 vs 18.1). On price, ratings volume, ads and device support 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. AquaticLog sells 3 in-app purchases, starting at $4.99 per month. Mobius asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

AquaticLog holds the better App Store score, 4.2 against 2.0. Both are backed by a comparable volume of ratings — 401 and 328 respectively. Written reviews point the same way: 71% of AquaticLog's written reviews are positive against 27% of Mobius's.

UpkeepUpdate frequency

AquaticLog ships an update weekly, Mobius every 2 months. Both last shipped on September 21, 2026.

Scorecard6 real differences · 4 level
AquaticLog versus Mobius: the parameters behind the verdict, then further details
ParameterAquaticLogMobius
PriceFreeFree
Rating4.2 (401 ratings) — better2.0 (328 ratings)
Positive reviews70.5% of reviews — better27.5% of reviews
Number of ratings401 — better328
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.115.6 — better
Further details — not scored
Size21 MB95 MB
Age rating4+4+
DeveloperLonnex IncC2 Development, LLC

Customer experience

AquaticLog

All ratings401 ratings
Positive80.5%
Neutral3.2%
Negative16.2%
Written reviews217 reviews
Positive70.5%
Neutral5.1%
Negative24.4%

Mobius

All ratings328 ratings
Positive22.9%
Neutral3.4%
Negative73.8%
Written reviews171 reviews
Positive27.5%
Neutral3.5%
Negative69.0%

Bugs and requests

AquaticLog

Not enough reviews yet to summarise bugs or requests.

Mobius

Reported bugs

5 issues
  • Constant disconnections
  • Inability to add/connect devices
  • Lighting schedule not working as expected
  • Time/date resets randomly
  • Crashes and freezes

Requested features

6 requests
  • Remote access and control
  • Improved lighting schedule customization
  • Pump/device off option
  • Sync settings across devices
  • Better documentation and tutorials
Show 1 more
  • Wi-Fi connectivity

In-app purchases

3 purchases

AquaticLog

Subscriptions2
  • Pro Monthly Subscription$4.991 Month
  • Pro Yearly Membership7 Days trial$39.991 Year
One-time1
  • Pro Lifetime Membership$149.99
None

Mobius

No in-app purchases

Questions

Is AquaticLog free?
AquaticLog is free to download, with in-app purchases available.
Is Mobius free?
Mobius is free to download, with no in-app purchases.
Which has better reviews, AquaticLog or Mobius?
AquaticLog is rated higher. AquaticLog averages 4.2 out of 5 from 401 ratings, while Mobius averages 2.0 from 328 ratings.
Do AquaticLog or Mobius have ads?
Neither AquaticLog nor Mobius shows ads.
Which is updated more often, AquaticLog or Mobius?
AquaticLog ships an update weekly, and Mobius every 2 months. Most recently, AquaticLog was updated on September 21, 2026 and Mobius on September 21, 2026.

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