Comparison

Viis vs RalliP Smart phase 2

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

Head to head

About

Viis

Features

Read full description

VIIS App: Vietnamese IoT Solutions Application: - Monitoring different IoT devices remotely. - Control equipment everywhere. - Set Scheduler for on/off following the fixed time. - Set threshold, and track the history of the equipment. Viis App has integrated many parameters from the old devices and made them smart based on flexibility control and monitoring. This app can apply to different fields, ex: Agriculture, Factory, smart home, etc... Support email: contacts@viis.tech

About

RalliP Smart phase 2

Features

Read full description

Nông nghiệp chính xác - Canh tác thông minh 1. Giám sát yếu tố khí hậu, dinh dưỡng của môi trường trồng trọt, chăn nuôi thủy hải sản 2. Điều khiển: Quản lí nhà kính , điều khiển tủ điều khiển từ mọi nơi 3. Thời gian thực: Cài đặt thời gian thực hiện nhiều chế độ hoạt động khác nhau của gateway ở cùng một thời điểm 4. Cài đặt kịch bản, lập lịch, luật điều khiển thực thi linh hoạt, dễ dàng 5. Thống kê, theo dõi lịch sử các yếu tố khí hậu, dinh dưỡng trong môi trường canh tác

Screenshots

Viis4 screens

RalliP Smart phase 24 screens

Verdict

The call

The clearest difference is iOS requirement: Viis at 13.0 against RalliP Smart phase 2's 15.1. 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

Viis ships an update every 5 weeks, RalliP Smart phase 2 every 3 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

Scorecard1 real difference · 5 level

Viis versus RalliP Smart phase 2: the parameters behind the verdict, then further details
Parameter	Viis	RalliP Smart phase 2
Price	Free	Free
Update frequency	Every 5 weeks	Every 3 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	13.0 — better	15.1
Further details — not scored
Size	86 MB	35 MB
Age rating	4+	4+
Developer	Thong Ho	RANG DONG LIGHT SOURCE AND VACUUM FLASK JOINT STOCK COMPANY

In-app purchases

None

Viis

No in-app purchases

None

RalliP Smart phase 2

No in-app purchases

Questions

Is Viis free?

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

Is RalliP Smart phase 2 free?

RalliP Smart phase 2 is free to download, with no in-app purchases.

Do Viis or RalliP Smart phase 2 have ads?

Neither Viis nor RalliP Smart phase 2 shows ads.

Which is updated more often, Viis or RalliP Smart phase 2?

Viis ships an update every 5 weeks, and RalliP Smart phase 2 every 3 weeks. Most recently, Viis was updated on November 3, 2026 and RalliP Smart phase 2 on October 27, 2026.