T vs reefAZ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
T
This utility app allows mobile devices to back up files by connecting to a T-NAS device. It provides a convenient way to secure your data remotely.
- Connect to T-NAS device
- Mobile file backup
- Remote data storage
- Secure file management
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Connect the T-NAS device to help the mobile phone back up files.
reefAZ
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Smart Marine Aquarium Management. Note: A Premium subscription is required to access the features of this app. REEFAZ - The #1 Assistant for Reef Aquarium Enthusiasts. Keeping a reef aquarium is a hobby that demands absolute precision. REEFAZ is designed to make managing complex coral reef ecosystems extremely simple, intuitive, and safe - right from your phone. KEY FEATURES: . Water Parameter Tracking Log and analyze the history of critical water parameters including Salinity, Temperature, Calcium (Ca), Magnesium (Mg), Alkalinity (kH), Nitrate (NO3), and Phosphate (PO4). Visual charts help you detect fluctuations early and prevent risks. . Dosing & Mixing Calculators - Dosing: Automatically calculates the exact amount of additives needed to balance Ca, Mg, and kH - accurate down to the milliliter. - Salt Mix: Calculates the precise amount of salt required when performing water changes to reach your target salinity. - Powder Mix: Helps calculate the correct mixing ratios for powdered chemicals. . Knowledge Base & Equipment Guide In-depth guides on setting up and using advanced equipment such as: - Lighting & Wavemaker - Protein Skimmer - Calcium Reactor & Algae Reactor - New tank cycling guides and algae control methods. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: T at none against reefAZ's 3. T also leads on iOS requirement (12.0 vs 16.4). On price, update cadence, 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
Both are free to download. reefAZ sells 3 in-app purchases, starting at $0.99 per month. T asks for nothing beyond the download.
T ships an update fortnightly, reefAZ every 9 days. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.
| Parameter | T | reefAZ |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 37.5% of reviews | — |
| Update frequency | Fortnightly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 77 MB | 186 MB |
| Age rating | 12+ | 4+ |
| Developer | ZIONCOM(SHENZHEN) ELECTRONICS LTD | Ryan Trung |
In-app purchases
T
No in-app purchases
reefAZ
- ReefAZ Premium3 Days trial$0.991 Month
- ReefAZ Premium3 Days trial$13.991 Year
- ReefAZ Premium$29.99









