Comparison

Least Common Multiple (LCM) vs Voice Studio Pro

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

Head to head
About

Least Common Multiple (LCM)

Features
Read full description

The IOS Least Common Multiple (LCM) App was created in response to requests by visitors to the popular https://multiples.info website. This app will not only find the LCM of your numbers, but it will also calculate the multiplier you need to multiply each number by to get the LCM. The app is fast, intuitive, and easy to use. It is a standalone app, which means that it will work perfectly fine in places with little or no Internet access. We hope the Least Common Multiple App will become one of your favorite math apps.

About

Voice Studio Pro

Record high-quality audio on your Apple devices with professional-grade features. This free app offers lossless recording, editing tools, and background playback, all while prioritizing user privacy with on-device storage.

Highlights
  • Studio-quality lossless audio recording
  • Trim and save audio segments
  • Create custom ringtones
  • Background and scheduled recording
  • Voice activation and bookmarks
  • Apple Watch integration
Features
Read full description

Voice Studio Pro — the studio-quality voice recorder for iPhone, iPad, and Apple Watch. 100% free. No ads. No subscriptions. Ever. Perfect for interviews, podcasts, lectures, meetings, dictation, songwriting, voice notes, and ringtones. STUDIO QUALITY • Lossless WAV up to 48 kHz / 24-bit • M4A up to 320 kbps • Voice Isolation to strip out room noise • Background recording — lock your screen, keep recording • Live waveform with real-time levels • Voice activation — auto-pause silence LIBRARY & LIFE • Folders, tags, bookmarks, and full search • Recently Deleted for 30 days • Files app integration — your recordings live in "On My iPhone" • Import audio from Files, iCloud Drive, WhatsApp, any app • Save to Files, iCloud Drive, or external drives with one tap • Home Screen widget for one-tap recording • Apple Watch app + Complication + Dynamic Island Live Activity • Auto chapters every 10 minutes in long recordings TRANSCRIBE & EDIT • Live transcription while you speak • On-device transcription — nothing leaves your phone • Trim & export any segment as a new recording or ringtone • Overdub — record on top of an existing take • Playback speed remembered, loop mode for practice • Sleep timer for playback (10 / 15 / 30 / 60 min) VOICE STUDIO PRO PLUS (optional) Everything above stays free. Plus unlocks pro extras for power users: • AI Studio — automatic titles, smart-folder categories, topic chapters • Semantic library search — find recordings by meaning, not just words • Real-time transcript translation into 12 languages • Custom vocabulary — teach the recognizer your product names and jargon • Contacts-aware speaker tagging • iCloud sync across all your devices • Mastering presets: voice, podcast, music, interview, lecture • Batch normalize your library • Focus filter — arm Voice Studio when a Focus turns on • Podcast RSS feed export • Priority support and early access to new features PRIVACY FIRST Everything runs on your device. No account required. No analytics. Your recordings never leave your iPhone unless you share them. LANGUAGES Fully localized in English, Turkish, Spanish, French, German, Italian, Portuguese (Brazil), Japanese, Korean, Simplified Chinese, Russian, and Arabic. Voice Studio Pro is made with by an independent developer. Enjoy it — and if you find it useful, please rate it.

Screenshots

Least Common Multiple (LCM)4 screens
Voice Studio Pro4 screens

Verdict

The call

The clearest difference is price: Least Common Multiple (LCM) at $0.99 against Voice Studio Pro's $24.99. Least Common Multiple (LCM) also leads on iOS requirement (14.1 vs 18.0). Voice Studio Pro's advantage is update cadence (every 10 days vs every 38 months). On ads, 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

Least Common Multiple (LCM) costs $0.99 and Voice Studio Pro $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Least Common Multiple (LCM) ships an update every 38 months, Voice Studio Pro every 10 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
Least Common Multiple (LCM) versus Voice Studio Pro: the parameters behind the verdict, then further details
ParameterLeast Common Multiple (LCM)Voice Studio Pro
Price$0.99 — better$24.99
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 38 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS14.1 — better18.0
Further details — not scored
Size0 MB6 MB
Age rating4+4+
DeveloperH ValeurBirkan Aksoy

In-app purchases

None

Least Common Multiple (LCM)

No in-app purchases

None

Voice Studio Pro

No in-app purchases

Questions

Is Least Common Multiple (LCM) free?
Least Common Multiple (LCM) costs $0.99, with no in-app purchases.
Is Voice Studio Pro free?
Voice Studio Pro costs $24.99, with no in-app purchases.
Do Least Common Multiple (LCM) or Voice Studio Pro have ads?
Neither Least Common Multiple (LCM) nor Voice Studio Pro shows ads.
Which is updated more often, Least Common Multiple (LCM) or Voice Studio Pro?
Least Common Multiple (LCM) ships an update every 38 months, and Voice Studio Pro every 10 days. Most recently, Least Common Multiple (LCM) was updated on November 7, 2026 and Voice Studio Pro on October 31, 2026.

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