Comparison

SmartAquar vs KZJ

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

Head to head

SmartAquar

Gizwits,Aquarium

Free

🔧 Utilities

★ 2.03 ratingsView app →

intelligent control

About

SmartAquar

Remotely manage your aquarium's heating rod from any location. Supports controlling multiple devices simultaneously and allows for easy sharing with family members. Receive instant notifications about your tank's status.

Highlights

Remote heating rod control
Multi-device support
Automatic operation
Device sharing
Real-time condition alerts

Features

Read full description

*Control your water tank heating rod anytime and anywhere *Supports multi device control, one device, automatic operation *Device sharing, intelligent life shared by the whole family *Push messages to keep track of water tank conditions at all times

About

KZJ

Features

Read full description

This APP uses Bluetooth control mode to control the device, so that the device can only run within a specified time to realize automatic control.

Screenshots

SmartAquar4 screens

KZJ4 screens

Verdict

The call

The clearest difference is iOS requirement: KZJ at 12.4 against SmartAquar's 15.5. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SmartAquar ships an update every 2 months, KZJ every 6 weeks. The most recent releases landed on July 21, 2026 and September 19, 2026 respectively.

Scorecard1 real difference · 9 level

SmartAquar versus KZJ: the parameters behind the verdict, then further details
Parameter	SmartAquar	KZJ
Price	Free	Free
Rating	2.0 (3 ratings) — better	—
Positive reviews	0.0% of reviews	—
Number of ratings	3 — better	—
Update frequency	Every 2 months	Every 6 weeks — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	15.5	12.4 — better
Further details — not scored
Size	69 MB	65 MB
Age rating	17+	12+
Developer	Gizwits IoT Technology Co., Ltd.	Zhongshan Kangzhijie Electrical Appliances Co., Ltd.

In-app purchases

None

SmartAquar

No in-app purchases

None

KZJ

No in-app purchases

Questions

Is SmartAquar free?

SmartAquar is free to download, with no in-app purchases.

Is KZJ free?

KZJ is free to download, with no in-app purchases.

Do SmartAquar or KZJ have ads?

Neither SmartAquar nor KZJ shows ads.

Which is updated more often, SmartAquar or KZJ?

SmartAquar ships an update every 2 months, and KZJ every 6 weeks. Most recently, SmartAquar was updated on July 21, 2026 and KZJ on September 19, 2026.