Comparison

T vs reefAZ

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

Head to head
About

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.

Highlights
  • Connect to T-NAS device
  • Mobile file backup
  • Remote data storage
  • Secure file management
Features
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Connect the T-NAS device to help the mobile phone back up files.

About

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

T4 screens
reefAZ4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. reefAZ sells 3 in-app purchases, starting at $0.99 per month. T asks for nothing beyond the download.

UpkeepUpdate frequency

T ships an update fortnightly, reefAZ every 9 days. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 6 level
T versus reefAZ: the parameters behind the verdict, then further details
ParameterTreefAZ
PriceFreeFree
Positive reviews37.5% of reviews—
Update frequencyFortnightlyEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.4
Further details — not scored
Size77 MB186 MB
Age rating12+4+
DeveloperZIONCOM(SHENZHEN) ELECTRONICS LTDRyan Trung

In-app purchases

None

T

No in-app purchases

3 purchases

reefAZ

Subscriptions2
  • ReefAZ Premium3 Days trial$0.991 Month
  • ReefAZ Premium3 Days trial$13.991 Year
One-time1
  • ReefAZ Premium$29.99

Questions

Is T free?
T is free to download, with no in-app purchases.
Is reefAZ free?
reefAZ is free to download, with in-app purchases available.
Do T or reefAZ have ads?
Neither T nor reefAZ shows ads.
Which is updated more often, T or reefAZ?
T ships an update fortnightly, and reefAZ every 9 days. Most recently, T was updated on September 29, 2026 and reefAZ on October 7, 2026.

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