Comparison

PrivateTranslate vs OpusTranslator

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

Head to head
About

PrivateTranslate

Translate languages privately with an AI model that runs entirely on your device. Supports 55 languages, live transcription, and camera translation without needing an internet connection or collecting your data.

Highlights
  • On-device AI translation
  • 55 language support
  • Live transcription mode
  • Offline functionality
  • Camera and photo translation
  • Voice and text input
  • Translation history
Features
Read full description

Translate with complete privacy. No servers. No data collection. Just you and your words. PrivateTranslate is the translation app that respects your privacy. Powered by TranslateGemma 4B, a state-of-the-art AI model running entirely on your device, your translations never touch the cloud. 55 LANGUAGES Translate between 55 languages including English, Spanish, French, German, Chinese, Japanese, Arabic, Hindi, and many more. LIVE TRANSCRIPTION MODE Place your phone on the table during a conversation. PrivateTranslate listens, transcribes, and translates in real-time using Apple's SpeechAnalyzer. Perfect for meetings, travel, or connecting with family. CONVERSATION MODE Two-way translation for face-to-face conversations. Each person speaks in their language, sees the translation instantly. TRULY OFFLINE Download the model once, translate forever. No internet connection needed. Perfect for travel, remote areas, or anywhere you need privacy. MORE FEATURES • Camera translation: Point at signs, menus, documents • Photo library: Translate text from saved images • Voice input: Speak naturally, see translations instantly • Text-to-speech: Hear pronunciations in any language • Translation history: Access past translations anytime • Auto-detect: Automatically identifies the source language PRIVACY FIRST • 100% on-device processing • No account required • No data collection • No tracking • No ads Your words are yours alone. TECHNICAL REQUIREMENTS - PrivateTranslate harnesses the power of the TranslateGemma AI model. - Initial Setup: A one-time download of approximately ~2.5GB is required upon first launch to install the AI model. - Performance: Optimized via Apple's MLX framework for lightning-fast local inference. - Download PrivateTranslate today and break language barriers without breaking your privacy.

About

OpusTranslator

Features
Read full description

Opus Translator — Offline & Private Translate speech, text, documents, and camera images — entirely on your device, with no internet required. Opus Translator uses on-device AI to deliver fast, accurate translation without sending your audio or text to any server. Everything stays on your iPhone. Works completely offline Download the app and language models once. After that, translate anywhere — on a plane, in a remote area, or wherever you need it — with no Wi-Fi or mobile data required. Speak and translate in real time Two-way conversation mode lets you have natural back-and-forth exchanges across language barriers. Lecture and continuous translation mode (Pro) Use for lectures, guided tours, or one-way presentations. Opus listens continuously and translates in real time without interruption. Camera and document translation (Pro) Point your camera at signs, menus, or documents to translate. Import documents and images directly for full-document translation. Extended language coverage (Pro) Go beyond Apple's built-in languages with expanded langauge support for a wider range of languages, all processed on-device. High-accuracy speech recognition (Pro) Advanced ASR delivers superior voice recognition accuracy, especially for challenging audio conditions. Export and read aloud (Pro) Save translated sessions as text, share transcripts, and listen back to translations. Your privacy is absolute No account required. No data collected. No cloud processing. The developer never sees your purchase information. Terms of Use: https://opustranslator.carrd.co/#terms

Screenshots

PrivateTranslate4 screens
OpusTranslator4 screens

Verdict

The call

The clearest difference is update cadence: PrivateTranslate at fortnightly against OpusTranslator's every 6 weeks. OpusTranslator's advantage is iOS requirement (17.6 vs 26.0). On price, 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

Both are free to download. PrivateTranslate sells 3 one-off in-app purchases and OpusTranslator sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PrivateTranslate ships an update fortnightly, OpusTranslator every 6 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 7 level
PrivateTranslate versus OpusTranslator: the parameters behind the verdict, then further details
ParameterPrivateTranslateOpusTranslator
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS26.017.6 — better
Further details — not scored
Size24 MB31 MB
Age rating4+4+
DeveloperSimon MajarKhin Say VOONG

In-app purchases

3 purchases

PrivateTranslate

One-time3
  • Small tip$1.99
  • Medium tip$4.99
  • Large tip$9.99
2 purchases

OpusTranslator

Subscriptions1
  • Pro Monthly7 Days trial$4.991 Month
One-time1
  • Pro Lifetime$39.99

Questions

Is PrivateTranslate free?
PrivateTranslate is free to download, with in-app purchases available.
Is OpusTranslator free?
OpusTranslator is free to download, with in-app purchases available.
Do PrivateTranslate or OpusTranslator have ads?
Neither PrivateTranslate nor OpusTranslator shows ads.
Which is updated more often, PrivateTranslate or OpusTranslator?
PrivateTranslate ships an update fortnightly, and OpusTranslator every 6 weeks. Most recently, PrivateTranslate was updated on October 28, 2026 and OpusTranslator on October 25, 2026.

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