Comparison

Compo Owl vs Deep Revision

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

Head to head
About

Compo Owl

Features
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Compo Owl enables composition practice from the comfort of home. Get access to teachers familiar with the MOE syllabus with a tap of a button. 1. Child Writes Composition Access our app to view the compo question and begin writing on any foolscap paper. 2. Upload Composition for Marking Capture your child’s composition and upload it onto Compo Owl with just a few simple clicks. 3. Compo Specialist Grades The Work Get experienced teachers familiar with MOE-standard grading to mark the composition and provide feedback. Follow-up with corrections and track your progress!

About

Deep Revision

Features
Read full description

Deep Revision turns PSLE Science revision from a pile of assessment books into one focused daily habit β€” built around how the exam is actually marked, not just generic quizzes. PERSONALISED REVISION PLAN Set your target score and exam date, and Deep Revision builds an adaptive plan around it β€” from a 120-day Foundation phase all the way to a final 3-day Confidence Builder. Every day has a purpose: Learn, Practice, Mixed Review, Open-Ended Skills, Timed Practice, Mock Exam, or Mistake Fix Day, so revision never feels like the same three tasks on repeat. SMART DAILY MISSIONS Each day's mission is generated from your real quiz performance β€” accuracy, how long ago you last touched a topic, and how heavily it's tested β€” so you always work on what actually needs attention, not just the next topic in a list. Complete tasks, build a streak, and earn XP along the way. MOCK EXAMS Three full mock exam papers under real PSLE conditions, covering Forces, Electricity, States of Matter, Food Chains, Life Cycles, the Water Cycle, and more β€” each with a proper mix of MCQs and open-ended questions, marked the way PSLE marks them. 150+ EXAM-STYLE QUESTIONS Practice by topic or take a mixed quiz pulled from the full syllabus. Every question comes with a clear explanation, not just a right/wrong answer. 165 OPEN-ENDED QUESTIONS WITH MODEL ANSWERS PSLE Science is won or lost on open-ended answers. Deep Revision includes 165 structured questions with full model answers, mark allocations, and examiner tips on exactly the keywords and phrasing that earn marks. ASK & LEARN Type a question in your own words and instantly find the closest matching model answer from the full question bank β€” built to understand PSLE Science vocabulary, common phrasing, and even typos. (Note: this is a smart search tool, not a live AI tutor β€” it matches your question against our written question bank rather than generating new answers.) SCIENCE LIBRARY Every PSLE Science topic explained clearly, with key concepts, common mistakes students make, exam tips, and worked examples β€” a proper reference to fall back on whenever a mission calls for it. PROGRESS TRACKING See your streak, XP, and how each topic is trending over time, so you and your child both know exactly where things stand before exam day. ONE-TIME PURCHASE, NO SUBSCRIPTION Everything above unlocks with a single one-time purchase. No monthly fees, no auto-renewing subscription, no surprise charges. Built for Singapore's PSLE Science syllabus, for students revising independently and for parents who want a clear, structured plan without another subscription to manage.

Screenshots

Compo Owl4 screens
Deep Revision3 screens

Verdict

The call

The clearest difference is in-app purchases: Compo Owl at none against Deep Revision's 1. Compo Owl also leads on iOS requirement (13.4 vs 15.1). On price, ads and device support 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. Deep Revision sells 1 one-off in-app purchase. Compo Owl asks for nothing beyond the download.

Scorecard2 real differences Β· 4 level
Compo Owl versus Deep Revision: the parameters behind the verdict, then further details
ParameterCompo OwlDeep Revision
PriceFreeFree
Update frequencyEvery 2 weeksβ€”
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPod
Requires iOS13.4 β€” better15.1
Further details β€” not scored
Size28 MB44 MB
Age rating4+4+
DeveloperEDUFERN PTE. LTD.Nowsath Rifaya

In-app purchases

None

Compo Owl

No in-app purchases

1 purchases

Deep Revision

One-time1
  • Full Access Unlock$6.99

Questions

Is Compo Owl free?
Compo Owl is free to download, with no in-app purchases.
Is Deep Revision free?
Deep Revision is free to download, with in-app purchases available.
Do Compo Owl or Deep Revision have ads?
Neither Compo Owl nor Deep Revision shows ads.

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