Boki Lens vs Boki Master Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Boki Lens
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Learn profit, cash and financial statements through business examples in English and USD. Start free with 8 lessons and 24 questions; Premium adds 24 lessons. No app account required. JAPANESE GRADE 3 PRACTICE Available in the Japan course with the Japanese interface: explanations, worked examples, answer entry, review and original 60-minute mock exams. Learn how transactions connect profit, assets and cash. Practice answers and exam sessions are saved locally, not synced via iCloud. LEARN AND PRACTICE IN ENGLISH Global Basics has 8 chapters, 32 lessons and 96 questions in English and USD. Read explanations, explore worked examples and practice in Quiz. Three drills cover account classification, debit/credit and journal entries. Today shows your next lesson and spaced reviews. TRY IT FREE Global Basics includes 8 free lessons and their 24 questions, the Cash or Invoice case, Journal Entry, the three core drills, and 3 company diagnoses. Premium unlocks the remaining 24 lessons and access to all 96 course questions. READ STATEMENTS AND RUN A COMPANY Explore 20 fictional company diagnoses: 3 free and 17 with Premium. Review related lessons and try a related business decision. Make quarterly decisions, post transactions, and review statements across 18 companies: Independent consultant is free; the other 17 require Premium. Close a year and continue into the next. Completed years are saved; unfinished company runs are not. EXPLORE THE JAPAN COURSE A cafe-based course uses JPY and Japanese bookkeeping conventions, with English and Japanese text. Stage 0–10, three core quiz modes, and Journal Entry are free. Three fictional industry case studies and three Year-in-Business runs are also free; Premium adds 17 of each. Workplace Starter connects financial statements to profit, cash, and later customer payments. Switch courses from Learn or Settings. Each keeps separate progress and practice journals. Global teaching content stays in English, including when the app interface is Japanese. PREMIUM One monthly, auto-renewing subscription includes the additional Global lessons, 17 Global company diagnoses, 17 Global company careers, and the Japan-course activities above. The local App Store price is shown before purchase. Manage or cancel in your Apple account settings; restore purchases in the app's Settings. OFFLINE AND ICLOUD Core learning works offline, with data saved on your device. Lesson progress, review history, and practice journals in both courses can sync via iCloud on devices using the same Apple Account with iCloud Drive enabled. Changes may take time to appear. No ads or advertising tracking. Dynamic Type and dark mode are supported. Fictional company data is for learning. Global Basics uses the assumptions stated in its lessons and does not provide country-specific tax advice or comprehensive US GAAP, IFRS, or certification-exam coverage. Privacy Sharing usage is optional. After you explicitly allow it, TelemetryDeck receives a random local ID's hash, random session ID, app version/build, test status, and screen, feature, learning and purchase-success events. Events may include language, track/content version, stage/lesson IDs, lesson/purchase entry categories, answer/correct counts, plan and product ID. Before consent, no events are sent or saved and no analytics ID is created. If you decline, all features remain available. Withdraw under Settings > Optional analytics to stop sending, remove the ID, and delete or invalidate unsent events. Withdrawal does not delete sent events; see the Privacy Policy for retention. We send no region/country/raw locale, screen text, transaction IDs, prices, Apple IDs, journal contents, amounts, free text, names or contacts. No advertising SDKs; analytics is not linked to you or used for ads/tracking. - Privacy Policy: https://minimalist-lab.github.io/app-info/bokilens_privacy_en.html - Terms of Use (EULA): https://minimalist-lab.github.io/app-info/bokilens_terms_en.html
Boki Master Pro
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Boki Master Pro is a Japanese bookkeeping exam prep app for Levels 3, 2, and 1. Practice ~3,200 journal and calculation problems, ~1,000 key-term flashcards, timed mock exams, an automatic journal checker, step-by-step solutions, and financial statement drills — fully offline. Features: • Level 3 / 2 / 1 tracks • Journal entries with balance checker • COGS, depreciation, operating profit calculations • Income statement & balance sheet practice • Spaced-repetition flashcards • Timed mocks with topic mastery • Weak-area drills, bookmarks, incorrect review • Dark mode, offline-first Full access requires a subscription (Monthly/Yearly) or Lifetime purchase. Yearly may include a 3-day free trial. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://joykhansayan1.github.io/boki-master-pro/privacy.html Independent study aid; not affiliated with the Japan Chamber of Commerce and Industry. Does not guarantee exam results.
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Verdict
Boki Lens and Boki Master Pro are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Boki Lens sells 1 in-app purchase, starting at $2.99 per month and Boki Master Pro sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Boki Lens | Boki Master Pro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | MASATO NISHIURA | MD Shahariar Nazim Joy |
In-app purchases
Boki Lens
- Premium (Monthly)$2.991 Month
Boki Master Pro
- Monthly Plan$6.991 Month
- Yearly Plan3 Days trial$36.991 Year
- Lifetime Access$64.99









