Comparison

PSIS Mobile vs PSIS4

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

Head to head

Paññāsāstra IS

About

PSIS Mobile

Features

Read full description

PSIS Mobile App is the platform for parents and students easily check and track the study performance, attendances, timetable, and much more. This platform has main functionality as below: - Track student attendance - Check student's study result - Check timetable - School announcements - Notifications - Can change between English and Khmer language - ...

About

PSIS4

Read full description

PSIS4 Mobile App is the platform for parents and students easily check and track the study performance, attendances, timetable, and much more. This platform has main functionality as below: - Track student attendance - Check student's study result - Check timetable - School announcements - Notifications - Invoices - Communicate between parents/students with school - ...

Screenshots

PSIS Mobile4 screens

PSIS43 screens

Verdict

The call

The clearest difference is update cadence: PSIS Mobile at every 4 months against PSIS4's every 20 months. PSIS Mobile also leads on device support. On price, in-app purchases and iOS requirement 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

PSIS Mobile ships an update every 4 months, PSIS4 every 20 months. The most recent releases landed on September 19, 2026 and September 7, 2026 respectively.

Scorecard2 real differences · 4 level

PSIS Mobile versus PSIS4: the parameters behind the verdict, then further details
Parameter	PSIS Mobile	PSIS4
Price	Free	Free
Update frequency	Every 4 months — better	Every 20 months
Ads	No	—
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	—
Requires iOS	15.1	15.1
Further details — not scored
Size	33 MB	30 MB
Age rating	4+	4+
Developer	Sokheng Yong	YONG SOKHENG

In-app purchases

None

PSIS Mobile

No in-app purchases

None

PSIS4

No in-app purchases

Questions

Is PSIS Mobile free?

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

Is PSIS4 free?

PSIS4 is free to download, with no in-app purchases.

Which is updated more often, PSIS Mobile or PSIS4?

PSIS Mobile ships an update every 4 months, and PSIS4 every 20 months. Most recently, PSIS Mobile was updated on September 19, 2026 and PSIS4 on September 7, 2026.