Mobius vs Tankquil
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Manage multiple tanks
- Create custom scenes
- Drag-and-drop scheduling
- Lighting control with templates
- Flow control for pumps
- Dosing automation and tracking
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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.
Tankquil
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Keep your marine aquarium’s tests, dosing plans, and maintenance in one place. Tankquil supports Mixed Reef, SPS Dominant, LPS Dominant, Soft Coral, FOWLR (fish only with live rock), Fish Only, Nano Reef, Frag Tank, and other marine setups. • Log water test results and review charts, reading history, and adjustable target ranges. • Follow guided testing steps and use reaction timers with sound and vibration options. • Work through guided dosing tools for essential elements, nutrient management, and supported complete dosing systems, with product preparation checks and limits. • Record doses, organize dosing schedules, and review guidance based on test trends and dosing history. • Plan maintenance with reminders, record completed work and aquarium events, and keep equipment records. • Explore fish, coral, and invertebrate profiles, photo credits, and compatibility planning. • Learn with Aquarium 101 and revisit the app walkthrough when you need help. Tankquil provides planning and reference guidance. Always verify current product labels and manufacturer instructions, use accurate water volume and fresh test results, and follow product-specific limits. Tankquil does not control or verify physical dosing equipment. Species and compatibility guidance is not a guarantee.
Screenshots
Verdict
The clearest difference is price: Mobius at Free against Tankquil's $0.99. Mobius also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). Tankquil's advantage is chart position (#178 vs unranked). On ads and in-app purchases 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
Mobius is free to download; Tankquil costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Mobius | Tankquil |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 2.0 (328 ratings) — better | — |
| Positive reviews | 27.5% of reviews | — |
| Number of ratings | 328 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | — | #178 — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 95 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | C2 Development, LLC | Avrian Zajac |
Bugs and 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
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- Wi-Fi connectivity
Tankquil
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mobius
No in-app purchases
Tankquil
No in-app purchases









