Comparison

Simalai vs reefAZ

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

Head to head
About

Simalai

This smart dosing pump system allows for precise liquid dispensing from 0.1ml to 999ml. Control dosing volume, frequency, and timing remotely via your mobile phone. Multiple units can be wirelessly combined for expanded functionality.

Highlights
  • Precise dosing from 0.1ml
  • Compact and small volume design
  • Mobile phone control for settings
  • Wireless combination of multiple pumps
  • Adjustable dosing frequency and time
Features
Read full description

Welcome to smart dosing pump system! In order to conform to the demand of most of the aquarists,we updated the dosing pump sisytem and add the phone control function.Let’s learn how it changes our life! Features: 1.Minimum 0.1ml dosing: No matter 0.1ml dosing or 999ml dosing,just an easy job for our dosing pump system 2.Small volume:175*65*80 mm,it is only half of the volume of similar products. 3.Adjustable by mobile phone: You can set the dosing volume,dosing frequency and the dosing time for 24 hours all by your phone. 4.Wireless combine using: Several dosing pumps used together is allowable as they can be wireless combined

About

reefAZ

Read full description

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

Simalai4 screens
reefAZ4 screens

Verdict

The call

The clearest difference is in-app purchases: Simalai at none against reefAZ's 3. reefAZ's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

Simalai ships an update every 3 weeks, reefAZ every 9 days. The most recent releases landed on September 16, 2026 and October 7, 2026 respectively.

Scorecard2 real differences Β· 6 level
Simalai versus reefAZ: the parameters behind the verdict, then further details
ParameterSimalaireefAZ
PriceFreeFree
Positive reviews33.3% of reviewsβ€”
Update frequencyEvery 3 weeksEvery 9 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
MonetizationFreeβ€”
DevicesiPhone, iPodiPhone, iPad
Requires iOS16 β€” better16.4
Further details β€” not scored
Size8 MB186 MB
Age rating17+4+
Developer华 李Ryan Trung

In-app purchases

None

Simalai

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 Simalai free?
Simalai is free to download, with no in-app purchases.
Is reefAZ free?
reefAZ is free to download, with in-app purchases available.
Do Simalai or reefAZ have ads?
Neither Simalai nor reefAZ shows ads.
Which is updated more often, Simalai or reefAZ?
Simalai ships an update every 3 weeks, and reefAZ every 9 days. Most recently, Simalai was updated on September 16, 2026 and reefAZ on October 7, 2026.

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