Uni vs UDCast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Uni
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Description An app that allows users to acquire Japanese and multilingual content by capturing the Uni-Voice audio codes found on prints with their cameras. This service accurate information translated into several languages. The information can be acquired from Japanese language prints distributed in various locations. Automatically reads translated text information registered in servers or stored in Uni-Voice audio codes using the smartphone’s TTS (text-to-speech) function. ●How to Use ・Tap the camera button and run the app. ・From Uni-Voice audio code printed pages, position the guide marker approximately 5 cm above the code and slowly lift your smartphone approximately 8 cm from the code until the screen focuses and wait for the content to be automatically imported. The text is displayed and it can be read out. ●General Functions ・You can save imported text information to the library file. ・You can edit the file name. ・By tapping the telephone number/URL in the text, you can call from that screen. However, a communication environment is required. ●Explanation of Uni-Voice The audio code "Uni-Voice" is a two-dimensional bar code developed by JAVIS (Japan Association For the Visually-Impaired Information Support) that can record up to approximately 800 characters for reading on mobile telephones. You can display and save text data imported by capturing Uni-Voice audio codes with a camera. Audio, text, movies, multilingual translation information are distributed via smartphones (iPhone), etc. The audio code Uni-Voice was first used in April 2012 with the personal information form in the 'Regular Pension Mailer.' Furthermore, it has been introduced into the Hospital Medical Management System and the Pharmacy Receipt Computer System through the Ministry of Health, Labour and Welfare's Medical Dept. 5 section manager notifications. Future ties with Government Welfare services are presumed to develop. Uni-Voice will be distributed to a wide variety of areas, following the implementation of the Disability Discrimination Act in 2016 and as a foundation universal design technology for "Omotenashi (hospitality)" for the Inbound Travel Promotion Project (Visit Japan Project). ○Operation Verification Models iOS 7.0 or later. Compatible with iPhone, iPad (3rd generation/4th generation), iPad mini (mini/mini 2/mini 3), iPad Air (Air/Air 2) or iPod touch. Operation may be available for other terminals. *If the text audio does not play, verify whether the auto text reading function is set to ON or not. ※ Disclaimer ※ Though under a recommended operating environment, compatibility with inexistent OS versions at the time of app release or the most recent update is not guaranteed. For text to speech functions, performance depends on the TTS (text-to-speech) of each smartphone maker. Furthermore, depending on your usage environment, you may have difficulties when importing. ○Operation Verification Models: iOS 10.0 and later iPhone 5/5s/5c/SE (4 inches) iPhone 6/6s/7/8 (4.7 inches) iPhone 6 Plus/6s Plus/7 Plus/8 Plus (5.5 inches) iPhone X/Xs (5.8 inches) iPhone Xs Max (6.5 inches) iPad 4 iPad mini 2/3/4 All iPad Air/Pro versions
UDCast
This application converts spoken words into on-screen captions and sign language interpretation. It also offers voice guidance through earphones, enhancing accessibility for users.
- Vocal recognition
- On-screen captions
- Sign language interpretation
- Voice guidance output
- Internet-based data download
- Device testing function
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The UDCast app recognizes vocal information received through your device’s microphone, and displays captions and sign-language interpretation on your device’s screen. It can also output voice guidance through your device’s earphones. Before using UDCast for the first time… (1) At the top UDCast screen, select Test. Then go to the reception area to confirm that your device is working properly. (2) Before using, you must connect to the Internet and download the desired assistance data (voice guide, captions, and/or sign-language help). For detailed help, see the Usage Guide.
Screenshots
Verdict
The clearest difference is update cadence: Uni at every 11 days against UDCast's every 2 months. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Uni ships an update every 11 days, UDCast every 2 months. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.
| Parameter | Uni | UDCast |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 40.7% of reviews |
| Update frequency | Every 11 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 136 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | uni-voice business plan and planning inc. | Palabra Inc. |
In-app purchases
Uni
No in-app purchases
UDCast
No in-app purchases









