Comparison

VerticalChinese vs Least Common Multiple PRO

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

Head to head
About

VerticalChinese

Features
Read full description

Vertical Chinese is a calm, beautiful place to read classical Chinese (文言) — and a built-in dictionary that helps you understand every character. Read the Daodejing, the Analects, Mencius, Zhuangzi, Tang poetry, Records of the Grand Historian, and more — 250+ foundational texts, laid out vertically and character by character, the way they were written. READ • Vertical, character-by-character layout with a steady pinyin gutter • Toggle Traditional 繁 / Simplified 简, pinyin 拼, and English 英 • 聽書 read-aloud (audiobook) mode, plus per-word pronunciation • Warm rice-paper design, with light & dark themes UNDERSTAND — a dictionary built in • Tap any character for pinyin, meaning, and animated stroke order • Full CC-CEDICT word lookup — search by character, pinyin, or English • Radical index to find characters you can't type • Example sentences with pinyin and English REMEMBER • Save any character or word with a tap • Spaced-repetition flashcards (練習) to review what you save • Track your progress from carp to dragon — 鯉躍龍門

About

Least Common Multiple PRO

Features
Read full description

Finish your homework instantly. Prepare for exams without stress. Complete step-by-step solutions. Enter your numbers and calculate the least common multiple (LCM). HOW IT WORKS Enter your numbers into the appropriate fields and get started. You'll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don't need it. Only anonymous data is collected, for example: - which features are used - how many solutions are generated This helps us improve the app. It is not possible to identify you from this data. EXTRAS - Prime factorization - Using multiples - Curated learning videos - Feedback for incorrect input - Manage your own solutions - App introduction CONTACT Questions and feedback are always welcome via Discord or directly in the app review.

Screenshots

VerticalChinese4 screens
Least Common Multiple PRO4 screens

Verdict

The call

The clearest difference is price: VerticalChinese at Free against Least Common Multiple PRO's $1.99. Least Common Multiple PRO's advantage is update cadence (weekly vs every 18 months) and device support (3 vs 1). On ads and in-app purchases 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

VerticalChinese is free to download; Least Common Multiple PRO costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

VerticalChinese ships an update every 18 months, Least Common Multiple PRO weekly. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 2 level
VerticalChinese versus Least Common Multiple PRO: the parameters behind the verdict, then further details
ParameterVerticalChineseLeast Common Multiple PRO
PriceFree — better$1.99
Update frequencyEvery 18 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.215.0 — better
Further details — not scored
Size52 MB179 MB
Age rating4+4+
DeveloperDigital X Prairie LLCGlindemann, Sennoun, Langer GbR

In-app purchases

None

VerticalChinese

No in-app purchases

None

Least Common Multiple PRO

No in-app purchases

Questions

Is VerticalChinese free?
VerticalChinese is free to download, with no in-app purchases.
Is Least Common Multiple PRO free?
Least Common Multiple PRO costs $1.99, with no in-app purchases.
Do VerticalChinese or Least Common Multiple PRO have ads?
Neither VerticalChinese nor Least Common Multiple PRO shows ads.
Which is updated more often, VerticalChinese or Least Common Multiple PRO?
VerticalChinese ships an update every 18 months, and Least Common Multiple PRO weekly. Most recently, VerticalChinese was updated on October 7, 2026 and Least Common Multiple PRO on October 8, 2026.

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