Comparison

UDTalk vs RetroVoice

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

Head to head
About

UDTalk

Facilitates universal communication by translating speech and handwriting into text across devices. Ideal for bridging language barriers and supporting interactions with deaf individuals. Connects via Wi-Fi or internet for seamless real-time translation.

Highlights
  • Speech recognition translation
  • Handwriting recognition translation
  • Automatic language translation
  • Wi-Fi and internet connectivity
  • Cross-device communication
  • Supports deaf communication
Features
Read full description

UD Talk can deliver to support universal communication in your life. Especially, it is for useful between deaf people and us or other languages, and so on. You can connect other devices using wifi or internet. You can send your speech to other devices using speech recognition, hand writing. Languages is translated automatically (to your native language). For example, if you want to see Japanese content, you can use it. About Auto renewal subscriptions - Items Compact Plan 1 month (It's renewed automatically.): 980 yen 1 week (It's renewed automatically.): 480 yen + 3 days free trial It'll be paid in the Apple ID you use. - About an automatic renewal and accounting. Use will be "automatic continuation renewal". Use is renewed automatically within 24 hours which end and charged for the iTunes account you use. - About a stop of confirmation of setting and an automatic renewal. It's possible to be to turn off an automatic renewal and suspend an automatic renewal of a license from customer's account setting screen before more than 24 hours of a license period end. It's possible to change an automatic renewal from a "Settings > iTunes &App Store > Tap your Apple ID area > View Apple ID > Tap subscriptions "manage". - About cancellation. It isn't possible to do change in the period and cancellation during "Compact Plan" use. - Private policy  http://udtalk.jp/privacy/ - Terms of use  https://udtalk.jp/license_of_app/ - About subscriptions  http://udtalk.jp/compact/

About

RetroVoice

Features
Read full description

RetroVoice – Voice Journaling with AI Reflection Tired of staring at a blank page? RetroVoice lets you journal the way you think—by speaking. Just talk about your day, and our AI turns your voice into beautifully summarized entries, personalized insights, and gentle reflections to help you grow. - Why RetroVoice? Speak Freely — No typing, no hand cramps. Record naturally while walking, commuting, or winding down. Smart AI Summaries — Get concise recaps, key themes, emotion trends, and growth prompts in seconds. Community — Share reflections in themed feeds, find connection, and stay motivated without judgment. Mood & Progress Tracking — See patterns over time with simple visuals—no extra effort required. Free to Start — Basic voice journaling is free. Unlock advanced AI insights, longer records with a subscription. Journaling has never been easier or more meaningful. Whether you're processing emotions, building habits, meditating, or simply capturing life—RetroVoice makes reflection feel natural and rewarding. * Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ * Privacy Policy https://www.retrovoice.xyz/privacy

Screenshots

UDTalk4 screens
RetroVoice4 screens

Verdict

The call

UDTalk and RetroVoice are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. UDTalk sells 2 in-app purchases, starting at $1.99 per 7 days and RetroVoice sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

UDTalk ships an update every 10 days, RetroVoice every 2 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
UDTalk versus RetroVoice: the parameters behind the verdict, then further details
ParameterUDTalkRetroVoice
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews55.6% of reviews—
Number of ratings2 — better—
Update frequencyEvery 10 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size53 MB51 MB
Age rating9+12+
DeveloperShamrock Records, Inc.Kyungho Park

In-app purchases

2 purchases

UDTalk

Subscriptions2
  • Compact Plan (1 week)$1.997 Days
  • Compact Plan (1 month)$2.991 Month
2 purchases

RetroVoice

Subscriptions2
  • Basic$6.991 Month
  • Pro$19.991 Month

Questions

Is UDTalk free?
UDTalk is free to download, with in-app purchases available.
Is RetroVoice free?
RetroVoice is free to download, with in-app purchases available.
Do UDTalk or RetroVoice have ads?
Neither UDTalk nor RetroVoice shows ads.
Which is updated more often, UDTalk or RetroVoice?
UDTalk ships an update every 10 days, and RetroVoice every 2 weeks. Most recently, UDTalk was updated on October 26, 2026 and RetroVoice on October 25, 2026.

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