LetSeeApp vs Sullivan+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LetSeeApp
This app provides visual recognition and detection tools for visually impaired individuals. It can identify banknotes and plastic cards, and measure light levels. Users simply point their camera at an object, and the app announces the result.
- Banknote recognition (multiple currencies)
- Plastic card recognition
- Light measurement tool
- Customizable currency recognition
- VoiceOver compatibility
- Offline processing
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LetSee is an app for vision. It integrates different visual recognition and detection functions for visually impaired people. The basic operating principle for most functions is super easy: just point the camera towards the target and wait until you hear the result. To cycle through functions swipe sideways with three fingers or activate the the selected function button (with VoiceOver ON). *Money reader* It recognizes banknotes of several currencies: AFRICA: South African rand ASIA: Chinese yuan, Indian rupee, Japanese yen, Saudi riyal, South Korean won, Thai baht EUROPE: Belarusian ruble, British pound, Czech crown, Euro, Hungarian forint, Polish złoty, Romanian leu, Russian ruble, Serbian dinar, Swiss franc, Turkish lira, Ukrainian hryvnia NORTH AMERICA: Canadian dollar, Mexican peso, US dollar OCEANIA: Australian dollar, New Zealand dollar SOUTH AMERICA: Argentine peso, Brazilian real, Chilean peso, Colombian peso, Peruvian sol It has a menu option to disable the recognition of unused currencies, which increases the recognition speed and reduces energy consumption. *Plastic card recognizer* You have to register your own cards through the menu. Thereafter it works the same way as the money reader does. Card images are not stored and no sensitive information is saved, only the general design of the card is recognized. *Light measurement tool* This is not a recognizer function. Instead it measures the light level to let you find light sources, such as spotlights, screens, or even windows. The stronger the light the higher the pitch of the tone you hear. You may also get a percentage value by tapping the screen. Different sound scales can be selected in the menu. On iPhone light measurement is based on your back camera. You might need some practice first. We advise you to place the camera of your smartphone onto the object you want to recognize and slowly start pulling it upwards. Once you reach a proper distance the recognition result will be announced. It can also be helpful to slightly and slowly tilt, pan, and turn your device. Use this app at your own risk. Keep in mind that even at 99.9% accuracy machines can still make mistakes. It might make sense to wait for a few announcements for each object. Your data is yours. Although we use your camera to recognize banknotes and cards from your surroundings, we do not collect or send these images anywhere. Processing is also done locally on your smartphone, thus for regular use no internet connection or data roaming is needed. We are constantly working on improving our services and introducing more features. If you have any questions, feedback or feature request, please email us at info@letseeapp.com
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/
Screenshots
Verdict
The clearest difference is review sentiment: Sullivan+ at 86% against LetSeeApp's 50%. Sullivan+ also leads on rating (4.4 vs 4.0) and ratings volume (22 vs 3). LetSeeApp's advantage is iOS requirement (12.0 vs 17.6). On price, update cadence, ads and in-app purchases 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. LetSeeApp sells 10 one-off in-app purchases and Sullivan+ sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Sullivan+ holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Sullivan+ has 22 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of LetSeeApp's written reviews are positive against 86% of Sullivan+'s.
LetSeeApp ships an update every 3 months, Sullivan+ every 2 months. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.
| Parameter | LetSeeApp | Sullivan+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (3 ratings) | 4.4 (22 ratings) — better |
| Positive reviews | 50.0% of reviews | 85.7% of reviews — better |
| Number of ratings | 3 | 22 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 98 MB | 136 MB |
| Age rating | 4+ | 4+ |
| Developer | Jedlik Innovacio Korlatolt Felelossegu Tarsasag | TUAT Inc. |
Customer experience
LetSeeApp
Sullivan+
In-app purchases
LetSeeApp
- Chinese yuan - 2020$0.99
- South Korean won - 2020$0.99
- Mexican peso - 2020$0.99
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- Czech koruna - 2022$0.99
- Swiss franc - 2022$0.99
- Chilean peso - 2022$0.99
- Colombian peso - 2022$0.99
- Peruvian sol - 2022$0.99
- 20 extra card slots$2.99
- 50 extra card slots$4.99
Sullivan+
- Pro$9.991 Month
- Pro Usage 5,000 Top-Up$2.99
- Pro Usage 15,000 Top-Up$6.99








