Sullivan+ vs BISDAM(비스담)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sullivan+
This visual assistance app uses AI and your smartphone camera to describe surroundings, read text, identify faces, and find objects. It offers features like currency recognition and color identification to enhance accessibility for the blind and visually impaired.
- AI object and scene description
- Text recognition and reading
- Face recognition with age/gender
- Object finder with voice guidance
- Currency denomination announcement
- Color recognition
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Sullivan Plus is a visual assistance app provided by TUAT for information accessibility for the blind and low vision, and provides information recognized through the smartphone camera to users who need visual assistance. Sullivan Plus X SKtelecom Please support the warm collaboration between Sullivan Plus and SKtelecom! Experience Sullivan Plus with SKtelecom's diverse and powerful AI technologies! ■ AI Facecan that recognizes age, gender, and facial expressions Register your face The face registration function has been added to the face recognition mode. You can register the face of anyone you want, and find the face of the person you registered in a photo. Object Finder The object-finding feature has been added. Select the object you want to find from the list and scan your surroundings. The app will notify you with vibrations and voice prompts. PDF Quota Donation Donate your unused PDF Reader quota to help others who need it. By donating, users who have exhausted their PDF quota for the day will be able to read additional image-based PDF files based on the donated amount. If you’ve already used up your quota for the day, you can request donations. Other users can see your donation request message and choose to participate. :) Currency Recognition Sullivan Plus announces the denomination of bills via voice. (Supported currencies: Korean Won, US Dollar, Euro, Japanese Yen) Q&A Board The Q&A Board has been added for users who couldn’t resolve questions or share tips due to the lack of a communication space. If someone comments on your post, you’ll receive a notification so you can check it instantly! [Key Features] 1. AI Mode 2. Automatic Image Description 3. Text Recognition 4. Face Recognition ■ Curious about your surroundings? AI Mode - Identifies objects around you and generates descriptive sentences for the scene. ■ Struggling to read letters on mail, magazines, or newspapers? Text Recognition - Detects text and announces it audibly. Point your camera at the area with the text you want to recognize. ■ Wondering about someone you just met? Face Recognition - Identifies the person captured on camera and provides their age and gender. ■ Automatically recognize your surroundings. Automatic Image Description - No need to press the shutter button. The app automatically detects the environment and provides voice guidance. ■ Looking for the location of objects around you? Object Finder - Select the object you’re looking for, and the app will guide you to its location using voice prompts. ■ Having trouble finding the right color for your outfit in the morning? Color Recognition - Supports single-color mode to identify the color at the center of the screen and full-screen mode to identify dominant colors across the entire view. ■ Manage Samsung Electronics home appliances more smartly! Consumer Electronics Mode - Connect the QR code of Samsung Electronics home appliances to the SmartThings app to easily control products, check their status, access manuals, and request services. ■ Assisting those with low vision, not just total blindness. Magnifier - The camera's zoom function lets you enlarge or reduce objects or text and supports color inversion. [Permissions Required] The camera is used to capture images so the app can describe objects, text, and surroundings aloud for users who are blind or have low vision. Camera - Controls the camera and captures photos using the camera API. Storage - Temporarily stores captured images and deletes them after the analysis is complete. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
BISDAM(비스담)
This app facilitates seamless communication by transcribing spoken words into text and allowing users to save frequently used phrases. It also provides conversation history and location-based chat recall for easy review and continuation.
- Speech-to-Text transcription
- Text shortcuts for quick replies
- Conversation history review
- Location-based conversation history
- Effortless shopping and inquiries
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Shop, inquire, or chat effortlessly – BISDAM ensures smooth interactions at every turn. Feature ■Speach-to-Text(STT) ■Text Shortcuts ■Conversation History Review ■Location-based Conversation History - Have you ever struggled to understand what the hearing people are saying when you show messages through written language? With BISDAM, you can have continuous conversations even through written language. When you type and show the screen to a hearing person, BISDAM transcribes the voice. Have you ever felt rushed while writing language because you care about the other person who might be waiting? With the built-in feature of text shortcuts, you can quickly compose frequently used sentences by saving shortcuts during written language input. Do you sometimes struggle to remember what the other person said in the ongoing conversation? Do you want to review what you said? You can easily scroll up the screen at any time to see what we were talking about. Do you want to start conversations quickly at places you visit daily? Check the list of conversations that took place around your current location and seamlessly continue from the previous conversation history. Experience fluid conversations with BISDAM – your go-to for everyday interactions.
Screenshots
Verdict
The clearest difference is in-app purchases: BISDAM(비스담) at none against Sullivan+'s 3. BISDAM(비스담) also leads on review sentiment (100% vs 86%). On price, update cadence, ads and monetization model 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. Sullivan+ sells 3 in-app purchases, starting at $9.99 per month. BISDAM(비스담) asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.
| Parameter | Sullivan+ | BISDAM(비스담) |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (22 ratings) — better | — |
| Positive reviews | 85.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 22 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 136 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | TUAT Inc. | seungjun lee |
Customer experience
Sullivan+
BISDAM(비스담)
In-app purchases
Sullivan+
- Pro$9.991 Month
- Pro Usage 5,000 Top-Up$2.99
- Pro Usage 15,000 Top-Up$6.99
BISDAM(비스담)
No in-app purchases









