Comparison

Transcriber for WhatsApp vs O2

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

Head to head
About

Transcriber for WhatsApp

Instantly convert voice messages from messaging apps into text. Translate and summarize long audio notes with AI, all processed on your device for maximum privacy and offline use. Save and search your transcriptions easily.

Highlights
  • Transcribe voice messages directly
  • Translate voice notes
  • Summarize long messages with AI
  • Save and search transcriptions
  • 40+ transcription languages
  • 100% on-device processing
  • Works offline
Features
Read full description

Understand every message in seconds. Matt transcribes, summarizes and translates voice notes and long texts from WhatsApp, Telegram and any other app. A 4-minute voice note becomes a 15-second read: Tap message → Share → Matt → Done. PRECISE TRANSCRIPTIONS, NO GAPS Tired of transcriptions full of dashes and skipped words? Matt uses state-of-the-art AI speech recognition to catch every single word — even with background noise, strong accents or fast talkers. No dashes, no missing words, no "audio not clear". EVERYTHING IS AUTOMATIC No settings, no setup: - Matt detects the language by itself — even multiple languages mixed in the same message - Matt recognizes different speakers and shows you who said what Perfect for group voice notes, forwarded audios and multilingual chats. AI SUMMARIES WITH KEY POINTS 7-minute audio? Endless thread? Matt's AI extracts the key points so you get the message at a glance. Choose your detail level: Essential, Concise or Detailed. Straight to the point, every time. UNDERSTAND EVERY LANGUAGE Receiving messages in Spanish? French? Chinese? Matt transcribes 90+ languages and translates to yours in real time. Perfect for friends abroad, international colleagues, or messages from your travels. MORE THAN VOICE NOTES - Voice notes and texts shared from WhatsApp, Telegram and any other app - Audio files imported in app: meetings, memos, lectures, recordings - Video files imported in app — Matt extracts the audio and transcribes it YOU CHOOSE YOUR PRIVACY Two transcription engines, you decide: - AI transcription (Premium): maximum accuracy with automatic language and speaker detection, processed by secure cloud AI. Nothing is stored. - On-device transcription (Pro): happens 100% on your iPhone, even offline. Your audio never leaves your device. AI summaries use cloud technology to ensure superior quality. No personal data is stored. NEVER LOSE A MESSAGE Every transcription and summary is saved in app. Search by content or date. Everything always at your fingertips. FEATURES - Voice note transcription for WhatsApp, Telegram and any app - AI summaries with 3 detail levels - Automatic language detection, even with mixed languages in one message - Speaker recognition: see who said what - Real-time translation - Audio and video file import - Optional 100% on-device transcription mode, works offline - Searchable archive of transcriptions and summaries - Native iOS interface, clean design On-device mode supports 25+ languages, including English, Spanish, French, German, Italian, Portuguese, Dutch, Swedish, Danish, Norwegian, Finnish, Russian, Japanese, Chinese (Simplified and Traditional), Korean, Arabic, Turkish, Polish, Hindi and Hebrew. PRIVACY Matt is designed to respect your privacy. - AI mode: audio is processed over encrypted connections by trusted AI providers and is never stored. - On-device mode: transcription and translation happen entirely on your iPhone. No audio sent to external servers. - No personal data collected, saved or shared. Terms of use: https://matt-transcriber.netlify.app/#terms-of-use Privacy policy: https://matt-transcriber.netlify.app/#privacy-policy DISCLAIMER Matt is an UNOFFICIAL tool. We are not affiliated, associated, authorized or approved by WhatsApp LLC, Telegram, or any of their subsidiaries or affiliates.

About

O2

Features
Read full description

O2 è in grado di configurare e comandare i recuperatori di calore a marchio O.ERRE installati all'interno della vostra abitazione in modo semplice e immediato anche se ci si trova lontano da casa. I vari recuperatori possono essere configurati in modo semplice ed intuitivo così che si comportino come un unico sistema di ventilazione oppure possano essere gestiti come unità singole di ventilazione. La configurazione e il comando delle unità può avvenire sia tramite WI-FI 2,4GHz sia tramite Bluetooth nel caso in cui non sia presente la rete internet all'interno della vostra abitazione, in questo caso alcune funzionalità del prodotto saranno limitate (fare riferimento in tal caso al manuale di istruzioni del prodotto). Con O2 sono impostabili numerose modalità di funzionamento: Automatica, Manuale, Sorveglianza, Notte, Free Cooling, Estrazione, Espulsione temporizzata e fino a quattro portate d'aria. O2 monitorata la qualità dell'aria attraverso un sensore di umidità a bordo macchina e diminuisce automaticamente la velocità della ventola nelle ore notturne per garantire il miglior comfort possibile (funzione attive nelle modalità Automatico e Sorveglianza). O2 è compatibile con i recuperatori di calore O.ERRE che presentano la desinenza "02" all'interno del nome prodotto.

Screenshots

Transcriber for WhatsApp4 screens
O24 screens

Verdict

The call

The clearest difference is in-app purchases: O2 at none against Transcriber for WhatsApp's 13. O2 also leads on iOS requirement (14.0 vs 18.0). On price, update cadence, ads 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. Transcriber for WhatsApp sells 13 in-app purchases, starting at $2.99 per 7 days. O2 asks for nothing beyond the download.

UpkeepUpdate frequency

Transcriber for WhatsApp ships an update monthly, O2 every 6 weeks. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
Transcriber for WhatsApp versus O2: the parameters behind the verdict, then further details
ParameterTranscriber for WhatsAppO2
PriceFreeFree
Rating4.8 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyMonthly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS18.014.0 — better
Further details — not scored
Size67 MB10 MB
Age rating4+4+
DeveloperAlberto BrunoEP spa

In-app purchases

13 purchases

Transcriber for WhatsApp

Subscriptions12
  • V2T Pro - Weekly$2.997 Days
  • V2T Pro - Monthly$2.991 Month
  • Matt Transcriber PREMIUM$4.997 Days
Show 9 more
  • Pro Unlimited Access7 Days trial$8.991 Year
  • V2T Pro – Yearly$14.991 Year
  • V2T Pro - Yearly3 Days trial$14.991 Year
  • Matt Transcriber PRO$19.991 Year
  • Matt Transcriber PRO$24.991 Year
  • V2T Pro - Yearly7 Days trial$24.991 Year
  • V2T Pro - Yearly3 Days trial$24.991 Year
  • Matt Transcriber Premium7 Days trial$44.991 Year
  • Matt Transcriber Premium3 Days trial$44.991 Year
One-time1
  • Unlimited forever$24.99
None

O2

No in-app purchases

Questions

Is Transcriber for WhatsApp free?
Transcriber for WhatsApp is free to download, with in-app purchases available.
Is O2 free?
O2 is free to download, with no in-app purchases.
Do Transcriber for WhatsApp or O2 have ads?
Neither Transcriber for WhatsApp nor O2 shows ads.
Which is updated more often, Transcriber for WhatsApp or O2?
Transcriber for WhatsApp ships an update monthly, and O2 every 6 weeks. Most recently, Transcriber for WhatsApp was updated on October 17, 2026 and O2 on October 6, 2026.

Other comparisons