Comparison

unitranslator vs Simul

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

Head to head
About

unitranslator

This tool offers high-precision real-time AI simultaneous interpretation for various communication needs, including international conferences, online classes, and business meetings. It supports multiple interpretation modes and allows for custom terminology integration.

Highlights
  • Real-time simultaneous interpretation
  • Screen sound translation
  • Conversation interpretation
  • AI interview prompts
  • Customizable knowledge base
  • Cloud synchronization and export
  • Multi-language support
Features
Read full description

UniTrans is a high-accuracy, real-time AI interpreter for anyone who works across languages — international meetings, online lectures, business calls, or face-to-face conversations. It transcribes as you speak and translates sentence by sentence, with the original and the translation aligned line by line. FOUR WAYS TO INTERPRET · Live Interpreting — Open it and start recording. Your speech is transcribed and translated as you talk, with timestamps on every line and optional speaker separation. Pause and resume anytime. · Device Audio — Translate the sound playing on your device in one tap: online classes, video calls and videos, translated while you watch. · Conversation Mode — Put the phone between the two of you, hold the button for your language and speak, then release to see both sides in both languages. · AI Interview Practice — Add your resume and the role you are preparing for, then rehearse out loud. UniTrans recognizes the question and offers talking points in real time, so you can practice before the day that counts. FLOATING SUBTITLES Switch to another app and your bilingual subtitles keep floating on top in Picture in Picture. Live status also appears on the Lock Screen and in the Dynamic Island. YOUR OWN KNOWLEDGE BASE Import the terminology and documents from your field (txt, md, pdf and more). Select several knowledge bases at once and the AI searches across all of them, so the results understand your domain. REVIEW, PLAY BACK AND EXPORT Every session is saved automatically. Star lines, add notes, organize sessions into folders and search them later. Recordings are kept on your device and play back as one continuous timeline, and you can export the transcript and the audio together as a single archive — with timestamps, speakers and translations included or left out, as you prefer. SYNC ACROSS DEVICES Your transcripts sync to your account, so switching devices never loses your records. Recordings stay on the device that made them. TWELVE LANGUAGES Interpret between English, Simplified and Traditional Chinese, Japanese, Korean, Spanish, French, German, Portuguese, Russian, Italian and Hindi — for meetings, study, business and travel. MEMBERSHIP Membership includes 100 minutes of live interpreting every day, resetting daily without rolling over. One-time minute packs are also available and never expire. An internet connection and an account are required. Download UniTrans and let language stop being a barrier. 隐私政策 Privacy Policy: https://uniflowtrans.com/privacy 服务条款 Terms of Use (EULA): https://uniflowtrans.com/terms

About

Simul

Features
Read full description

When you can't follow, just put your phone down. Simul turns what you hear into bilingual captions in real time: the original on top, the translation below, sentence by sentence as they're spoken. ■ Entirely on this device Recognition and translation both run locally. Audio and text are never uploaded and never touch a server. It works in Airplane Mode — go ahead and turn off your network right now and try it. ■ Where it helps · Face to face: one conversation, every turn translated — whoever speaks is detected automatically. If it picks the wrong side, tap that half to switch it. Lay the phone flat between you and one tap splits the screen so their half reads right way up · Lectures and meetings: set it on the table and follow the speaker line by line · Video: play a foreign-language video out loud and read along on screen ■ Built to be read Pure black, large type. The sentence still being spoken is dimmed and underlined; it settles once it's finished — so you always know which line can still change. Show both languages or just the translation. Caption size adjusts on its own, without changing your system text size. ■ Apple Watch Read captions right on your wrist, and start or stop from there. Put the phone down without missing anything. ■ Also · Speak the translation aloud so the other person can hear it · Generate a summary of the conversation when you're done · A Home Screen widget showing your current language pair — one tap to start · Start from Control Center, the Action button, or Siri · Continue on another device with Handoff ■ Language models download first The first time you use it, Simul walks you through downloading the recognition model for your languages. Models are managed by the system and shared across apps, so they don't count toward Simul's size. Downloading needs a network connection — after that, you never need one again.

Screenshots

unitranslator4 screens
Simul4 screens

Verdict

The call

The clearest difference is in-app purchases: Simul at none against unitranslator's 6. Simul also leads on update cadence (daily vs every 3 weeks). unitranslator's advantage is iOS requirement (18.6 vs 26.0). On price, 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. unitranslator sells 6 in-app purchases, starting at $35.00 per month. Simul asks for nothing beyond the download.

UpkeepUpdate frequency

unitranslator ships an update every 3 weeks, Simul daily. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
unitranslator versus Simul: the parameters behind the verdict, then further details
ParameterunitranslatorSimul
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS18.6 — better26.0
Further details — not scored
Size18 MB6 MB
Age rating4+4+
DeveloperShanghai Logic Origin Intelligent Technology Co.,Ltd钊 邓

In-app purchases

6 purchases

unitranslator

Subscriptions2
  • Membership Monthly3 Days trial$35.001 Month
  • Membership Yearly3 Days trial$339.991 Year
One-time4
  • 100 Minutes$2.99
  • 300 Minutes$7.99
  • 600 Minutes$14.99
Show 1 more
  • 1500 Minutes$39.99
None

Simul

No in-app purchases

Questions

Is unitranslator free?
unitranslator is free to download, with in-app purchases available.
Is Simul free?
Simul is free to download, with no in-app purchases.
Do unitranslator or Simul have ads?
Neither unitranslator nor Simul shows ads.
Which is updated more often, unitranslator or Simul?
unitranslator ships an update every 3 weeks, and Simul daily. Most recently, unitranslator was updated on October 10, 2026 and Simul on October 11, 2026.

Other comparisons