voice vs Deaf Navi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
voice
This app allows users to communicate through text when speaking is difficult, such as when wearing a mask. It offers customizable cards with illustrations and text for various situations, and can even track CO2 contributions.
- Customizable text cards
- Situation-specific illustrations
- CO2 contribution tracking
- Multiple list management
- Photo integration for cards
- Neumorphism design
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Voice is an application designed to "communicate" when speaking is difficult. It is designed to be used not only by the hearing impaired, but by anyone. Please try various ways to use it. 【Possible usage situations】 ◉ When you feel that you cannot communicate with the mask ◉ When you need to tell to a Shop staff or not you need chopsticks or a plastic bag. ◉ When telling the how many people will be to restaurant ◉ When you want to use written communication ◉ When you tell to pay by cash, card, or code pay ◉ When asking if drinks are available. ◉ When you want to give the number of a product you want. ◉ And You can also use it as a to-do list. 【Voice features】 ◉ One tap the you want to talk, tell! ◉ Switch cards from ON ⇄ OFF ◉ Press SET button to view only the selected cards, so you can instantly change whether you want them or not ◉ If not used or not received it, will be automatically counted the CO2 and graphed ◉ Can share your own CO2 contribution! ◉ Many illustrations for various situations ◉ There are three lists, and you can switch between them instantly ◉ You can add, change, or delete lists at will ◉ The order of the cards can be changed freely ◉ You can also add a photo in the card to create an original card ◉ The card can be rotated 180 degrees to show it to the recipient ◉ The text of the thank you message can be freely set ◉ Beautiful Neumorphism design ◉ Compatible with iPhone and iPad! ■■ Paid version ■■ ▲The paid version has no ads▲ ●Restore Your Purchases You can restore your purchases when you changed your iOS devices or reinstalled the app from [Restore Purchases] in the Settings -> Upgrade. Please note that you need to login to your iTunes settings in the iOS -> iTunes with the same Apple ID you used before. ●Manage or Cancel Go to Settings > [your name] > iTunes & App Store. Tap your Apple ID at the top of the screen. Tap View Apple ID. You might need to sign in or use Touch ID. https://support.apple.com/en-us/HT202039 ●Payment will be charged to your Apple ID account at the confirmation of purchase. ●The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. ●Your account will be charged for renewal within 24 hours prior to the end of the current period. ●You can manage and cancel your subscriptions by going to your App Store account settings after purchase. ●You will not be able to cancel the subscription once activated. ●Privacy Policy and Term of Use https://www.satomic.net/home/voice/terms-conditions We have also created a pattern-themed calculator called Patterns Calc, so you can choose the one you like best. More info ◉ satomic apps web site https://satomic.net ◉ satomic twitter https://twitter.com/HikaruSatomi1
Deaf Navi
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Deaf Navi brings information and everyday communication tools to Deaf and hard-of-hearing communities. The app interface and most guides are in Japanese. [Daily News] - Receive Japan and world news from the same curated feeds as Deaf Navi Web - Browse highlighted stories, categories, and sources, or search by keyword - Switch between Japanese translations (World-JP) and original-language world news - View story context and filter world news by the region supplied by the feed - Open the publisher's website to read the full article [Events and Sign Language Cafes] - Find upcoming events by date, region, type, and communication support - Browse sign language cafes in Japan and overseas by region and communication method - Check dates, operating status, verification dates, and official information - View thumbnails and full posters for events with images - Check published application deadlines and filter for hearing-loop support - Receive Web content updates in the app, with pull-to-refresh [Home] - Find events, cafes, lodging, and daily-life or emergency Web resources by purpose [Guides] - Search and bookmark information about support systems and daily life - Find emergency contact options, hearing-aid resources, employment support, and more [Everyday Tools] - Emergency Cards: Create, save, and display your messages in large text - Communication Board: Select phrases and present them to another person - Written Conversation and Speech: Exchange typed messages and read selected messages aloud - Sound Detection: Analyze nearby sounds on-device and receive visual and haptic alerts; save selected sounds and sensitivity - Links to sign language dictionaries, transcription apps, and Japan's telephone relay services - Open an Emergency Card from a widget Saved cards and written conversations remain on your device. Microphone audio is analyzed on-device and is not saved or transmitted. An internet connection is needed for news and event information. Check organizers' and cafes' official announcements for current details. Sound Detection is an assistive feature and does not guarantee detection of every sound.
Screenshots
Verdict
The clearest difference is in-app purchases: Deaf Navi at none against voice's 2. Deaf Navi also leads on ads (none vs shown) and update cadence (fortnightly vs every 4 months). voice's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price 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. voice sells 2 in-app purchases, starting at $0.99 per month. Deaf Navi asks for nothing beyond the download.
voice ships an update every 4 months, Deaf Navi fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | voice | Deaf Navi |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 28 MB | 4 MB |
| Age rating | 4+ | 12+ |
| Developer | Hikaru Satomi | MASAYOSHI TSUJI |
In-app purchases
voice
- Premium Plan$0.991 Month
- Premium Plan$6.991 Year
Deaf Navi
No in-app purchases









