Comparison

HK Correctional Services Prep vs 5

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

Head to head
About

HK Correctional Services Prep

Features
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Prepare for Hong Kong Correctional Services Department recruitment with a single app covering both entry ranks — Correctional Officer (CO) and Assistant Officer II (AO II) — across the selection interview, the written tests, the physical tests and department knowledge. INTERVIEW BANK 500 interview questions per rank, 1,000 in total, in parallel Chinese and English and fully available offline. Officer topics: background and motivation, leadership and team supervision, custodial safety and risk management, integrity and professional conduct, humane custody and fair treatment, rehabilitation and reintegration, communication and crisis response, smart-prison technology, Chinese and English writing with policy analysis, and English group discussion on current affairs. Assistant Officer II topics: frontline discipline and procedure, alertness and emergency response, integrity and professional boundaries, communicating with persons in custody, teamwork and shift handover, emotional crises and special needs, rehabilitation support, Cantonese group discussion on current affairs, and fitness, shift work and career readiness. Answer on your own first, then reveal the reference answer with a breakdown of what the panel is assessing. A timer helps you rehearse spoken delivery. WRITTEN PRACTICE The Basic Law and National Security Law Test (BLNST) with Chinese/English switching, Chinese and English use — vocabulary, grammar and comprehension — and aptitude drills covering numerical, verbal and deductive reasoning. STUDY NOTES The official selection stages for both ranks, plus practical frameworks: E-STAR-L for personal questions, SAFE-R for situational questions, group-discussion openers and summaries, weak-answer contrasts, an 18-point self-review sheet and a seven-day plan. Department topics build balanced answers on public safety, humane custody, rehabilitation, reintegration and smart-prison technology. FOUR FITNESS EVENTS Train for isometric strength, the 10m x 4 shuttle run, the 30-second Bailey Bridge and the 800m run, with result logging and progress tracking. PREP TOOLS Wrong-question review, bookmarks and study statistics to track your strong and weak areas. This independent preparation app is not an official HKSAR Government or Correctional Services Department app. Actual recruitment requirements, test items and standards are governed by the latest official announcements. Pro unlocks every question and the advanced practice modes: a one-time 90-day purchase that does not auto-renew and will not be charged again when it expires. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.10minquiz.com/zh-hant/privacy-policy

About

5

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Prepare for the BLNST (Basic Law and National Security Law Test) with 700 bilingual practice questions, worked explanations, six illustrated chapters and a 20-question, 30-minute timed mode. BLNST revision involves more than recognising an article number: a question may turn on the institution involved, the person covered or a condition in the wording. Study the main text by topic Work through principles, Central–HKSAR relations, residents' rights and duties, political structure, economic and financial matters, education and social affairs, external affairs and legal interpretation. Categories for locating provisions and recognising article content help you connect each provision to its subject. Keep annexes and documents in view A chapter outlines the three annexes and distinguishes instruments and versions. Use it to organise the material you still need to study, then check the current legal text for wording and conditions. Understand National Security Law structure Questions cover principles, institutions, offences and procedure. The companion chapter helps you separate a responsibility from an institution's function or an offence requirement. In a scenario, identify the provision being tested; similar names do not establish identical powers. Read feedback after each answer Multiple-choice questions include explanations. Compare the explanation with the words in the prompt, especially when two options refer to related institutions or different groups of residents. Check your reasoning even when your choice is correct. Every question is written independently for this app. Six illustrated chapters Start with format and scope, then explore the legal framework, rights and institutions, annexes and instruments, security-law structure and applying provisions to scenarios. Chapters combine their own illustrations with reading steps, key points, common mix-ups and recall checks. Use timed practice for pacing The current mode draws 20 questions for a 30-minute session and shows a result on completion. Its length and timing follow the Civil Service Bureau's published degree/professional-grade format. Use it to rehearse your pacing before test day. Arrangements differ by the academic requirements of the post, so check the relevant recruitment notice before applying. Save questions and revisit mistakes Bookmark a question you want to read again, including one you answered correctly but remain unsure about. The mistake page collects questions you answered incorrectly and lets you retry them. Review the condition or actor you missed before attempting the item again. Progress statistics show which topics still need work. Choose your reading language English and Traditional Chinese are available for the interface, questions and explanations. Set the interface and question language separately: retain familiar controls while practising legal terminology in the other language. Keep learning offline The question bank and notes are bundled in the app, ready from first launch without a content download. Read, practise and review without a connection. Bookmarks, mistakes and answer history stay on your device. Purchases, restoration and advertisements require their respective services. Independent civil service preparation Astera Technology Limited develops and operates this app independently. It is not affiliated with or endorsed by the Hong Kong Civil Service Bureau or any government department. Questions and notes are study material, not legal advice. They are not past papers, and practice results carry no qualification value. Consult current legislation and recruitment announcements for test scope, eligibility and arrangements. Some features involve in-app purchases or advertisements; available access options appear within the app. Privacy policy: https://asteratek.com/app-privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

HK Correctional Services Prep4 screens
54 screens

Verdict

The call

The clearest difference is ads: HK Correctional Services Prep at none against 5's shown. On price, update cadence, in-app purchases and device support 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. HK Correctional Services Prep sells 3 one-off in-app purchases and 5 sells 3 in-app purchases, starting at $8.99 per 3 months. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

Scorecard1 real difference · 5 level
HK Correctional Services Prep versus 5: the parameters behind the verdict, then further details
ParameterHK Correctional Services Prep5
PriceFreeFree
Update frequencyEvery 3 daysEvery 3 days
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size91 MB10 MB
Age rating4+12+
DeveloperPickmy AI香港導師聯會 HK Tutor Link

In-app purchases

3 purchases

HK Correctional Services Prep

One-time3
  • 90-day Pro Offer$24.99
  • 180-Day Pro$29.99
  • 90-Day Pro$29.99
3 purchases

5

Subscriptions2
  • Premium 3 Months3 Months trial$8.993 Months
  • Premium 12 Months1 Year trial$12.991 Year
One-time1
  • Lifetime Premium$12.99

Questions

Is HK Correctional Services Prep free?
HK Correctional Services Prep is free to download, with in-app purchases available.
Is 5 free?
5 is free to download, with in-app purchases available.
Do HK Correctional Services Prep or 5 have ads?
5 shows ads; HK Correctional Services Prep does not.
Which is updated more often, HK Correctional Services Prep or 5?
HK Correctional Services Prep ships an update every 3 days, and 5 every 3 days. Most recently, HK Correctional Services Prep was updated on November 10, 2026 and 5 on November 6, 2026.

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