Comparison

Cube App vs SereneSea

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

Head to head
About

Cube App

Features
Read full description

Con Cube App podrás encontrar los mejores comercios seas de la ciudad que seas. Personaliza tu perfil según tus gustos para identificar todos esos comercios que usen nuestra App. Cuando compres en un establecimiento con Cube App obtendrás recompensas en forma de puntos canjeables, con los cuales podrás conseguir los productos o servicios que ofrezca ese mismo comercio. Los puntos obtenidos en un comercio solo se podrán gastar en ese mismo comercio. Por otra parte, Cube App ofrece a los comercios la posibilidad de digitalizarse y fidelizar a todos sus clientes mediante nuestro sistema de recompensas. El comercio propone las recompensas que más le convengan, siendo totalmente de libre elección. El coste de esta aplicación para los comercios está organizado por planes (trimestral, semestral y anual) donde el precio medio mensual es de 10 euros. Esto incluye una interfaz exclusiva para los comercios donde poder editar sus perfiles e identificar las oportunidades de crecimiento.

About

SereneSea

Features
Read full description

When keeping a marine tank, data is rarely missing—it's usually scattered across test logs, note apps, photo galleries, and various tools. SereneSea centralizes water parameters, maintenance routines, livestock, equipment, photos, and key changes into a single tank profile. It helps you not only log today's details but also look back and truly understand your aquarium's journey. 【Water Parameters & Long-Term Trends】 Track essential marine metrics like Ca, Mg, KH, NO3, PO4, salinity, and specific gravity, or add your own custom parameter items. Use trend charts to review long-term changes over time, cross-referenced with dosing and lighting adjustment logs to clearly see the impact before and after every tweak. 【AI Import for Historical Water Logs】 No need to manually re-type old water parameter records stored in notes, spreadsheets, screenshots, or other places. SereneSea provides a structured prompt/format—simply use your preferred AI tool to organize your raw data and paste the result back into the app. Preview, edit, and select which entries to keep before importing. Nothing is written to your official records until you confirm. 【Maintenance & Reminders】 Set up schedules for water changes, cleaning, additives, and equipment maintenance, and track both pending tasks and completed history. Every completed task leaves a historical record, so daily care no longer relies solely on memory. 【Livestock, Equipment & Consumables】 Centralize records for fish, corals, hardware, and media, including name, category, date, price, notes, and more. Includes AI Import for livestock and equipment—batch-organize your old records and verify each entry in the app before importing. 【Photos, Milestones & Tank History】 Keep tank photos and major events together on a unified timeline—including livestock additions, hardware upgrades, parameter adjustments, and tank status changes. Over time, SereneSea becomes more than just a logging tool; it becomes the growth history of your reef tank. 【Shared Tank Maintenance】 If your aquarium is cared for by more than one person, use the Shared Maintenance feature. Co-maintainers can view shared tank data, complete scheduled tasks, and add water records or milestone events, reducing repetitive actions and communication gaps. 【Backup & Restore】 Supports ZIP file export/import as well as optional Google Drive cloud backup. Years of accumulated tank records don't have to stay trapped on a single device. 【Practical Tools for Marine Aquarists】 Includes built-in calculators and helper tools for marine tanks, keeping testing, maintenance, and daily management all in one app. 【Built for Marine Hobbyists】 Find local marine aquarium shops in Taiwan, making it convenient for both tank management and real-world store visits and purchases. Core features can be used immediately without account registration. Simply choose to sign in with Google Drive when you need cloud backups or shared maintenance. Primary tank care features are free to use; VIP is available mainly for an ad-free experience and to support ongoing development. Record every change in your reef tank with care. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Cube App4 screens
SereneSea3 screens

Verdict

The call

The clearest difference is in-app purchases: Cube App at none against SereneSea's 4. Cube App also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.4). SereneSea's advantage is update cadence (every 6 days vs every 3 weeks). On price 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. SereneSea sells 4 in-app purchases, starting at $1.99 per month. Cube App asks for nothing beyond the download.

UpkeepUpdate frequency

Cube App ships an update every 3 weeks, SereneSea every 6 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 2 level
Cube App versus SereneSea: the parameters behind the verdict, then further details
ParameterCube AppSereneSea
PriceFreeFree
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better16.4
Further details — not scored
Size77 MB144 MB
Age rating4+4+
DeveloperXerintel Internet Technologies S.L.ZHAOWEI KE

In-app purchases

None

Cube App

No in-app purchases

4 purchases

SereneSea

Subscriptions2
  • QuietSea VIP Monthly$1.991 Month
  • QuietSea VIP Yearly$17.991 Year
One-time2
  • Lifetime VIP - Annual Plan$7.99
  • Lifetime VIP$14.99

Questions

Is Cube App free?
Cube App is free to download, with no in-app purchases.
Is SereneSea free?
SereneSea is free to download, with in-app purchases available.
Do Cube App or SereneSea have ads?
SereneSea shows ads; Cube App does not.
Which is updated more often, Cube App or SereneSea?
Cube App ships an update every 3 weeks, and SereneSea every 6 days. Most recently, Cube App was updated on November 3, 2026 and SereneSea on October 25, 2026.

Other comparisons