Comparison

PSLE Primary vs ZAstronomy

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

Head to head

About

PSLE Primary

Features

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Practice Singapore Past Years papers/quizzes for English, Maths, Science and Chinese from Primary 1 to 6 PSLE. Work solution provided.PSLE primary is an educational platform based in Singapore that offers FREE past years English, Mathematics, Science and Chinese questions to Primary 1 to 6 PSLE students. These online quizzes from top schools will help students gain confident and better prepare themselves for exams.The App main features:- Auto marking and display result immediately- Provide solution to help srudent learn efficiently- SG top school exam papers/ quizzes- Point system - Student Leaderboard- Battle Zone allow to challenge any online user for a Quiz battle- User Statistics shows Rank, Coins, Score, Attended Questions, Correct Answers, Incorrect Answers - Many more....

About

ZAstronomy

Features

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Features: - ASTRONOMY TODAY- A fun and easy way to keep up to date with what's trending up above.- EVENTS: Know where to be and what to see in South Africa. - PICTURE & VIDEO GALLERY: Explore everything Astronomy in the picture and video gallery, from neighbouring galaxies to behind the scenes of the science. - TOUR POINTS: Locate and discover places to see and visit. - WORKSHOPS: Enhance your skill set with an astronomical factor. We are here to help you develop some skills. - ASTRO QUIZ: Learn and test your knowledge of all things astronomy, here in our quiz category there is a range of difficulties and plenty of questions to explore.

Screenshots

PSLE Primary4 screens

ZAstronomy4 screens

Verdict

The call

The clearest difference is ads: ZAstronomy at none against PSLE Primary's shown. PSLE Primary's advantage is update cadence (every 2 weeks vs every 4 months). On price, in-app purchases, device support 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

PSLE Primary ships an update every 2 weeks, ZAstronomy every 4 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 4 level

PSLE Primary versus ZAstronomy: the parameters behind the verdict, then further details
Parameter	PSLE Primary	ZAstronomy
Price	Free	Free
Update frequency	Every 2 weeks — better	Every 4 months
Ads	Yes	No — better
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	14.0 — better	15.0
Further details — not scored
Size	29 MB	71 MB
Age rating	4+	4+
Developer	Kian Lee	Alenti Technologies

In-app purchases

None

PSLE Primary

No in-app purchases

None

ZAstronomy

No in-app purchases

Questions

Is PSLE Primary free?

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

Is ZAstronomy free?

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

Do PSLE Primary or ZAstronomy have ads?

PSLE Primary shows ads; ZAstronomy does not.

Which is updated more often, PSLE Primary or ZAstronomy?

PSLE Primary ships an update every 2 weeks, and ZAstronomy every 4 months. Most recently, PSLE Primary was updated on October 27, 2026 and ZAstronomy on October 25, 2026.