AI Sign vs SignSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AI Sign
This app uses AI to recognize American Sign Language gestures through your device's camera. It offers an action recognition mode to interpret your signs and a capture mode to help train the machine learning model by uploading anonymized data.
- AI-powered sign language recognition
- Recognizes over 100 ASL signs
- Action recognition mode
- Data capture for model training
- Anonymized data upload
- Supports iPhone and iPod
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AI Sign is probably one of the first A.I. / machine learning app that use for recognise American sign language. AI Sign is able to recognise more than 100+ actions (Sign language in word). AI Sign has two modes: 1. Action Recognition mode: User do actions in front of the camera, and then AI Sign will try his best to predict what is your action in terms of American Sign Language. 2. Capture mode: In order to make AI Sign increase its recognition accuracy, we need more data to train our machine learning model. Therefore, we hope you can help us to generate more training data by capturing your actions. Note that we do not capture your images, all the captured data are numeric e.g. 0.1231, 0.2578 etc... Also you upload your data manually via the app. We will not automatically upload your data to our server. Action list (Recognisable) Angry, Ask, Bad, Bird, Bored, Bus, Busy, Buy, Can, Car, Cat, Chicken, Close, Cold, Come, Cook, Correct, Cow, Cry, Doctor, Dog, Dont, Dont know, Dont like, Dont understand, Dont want, Drink, Ear, Excited, Exercise, Eye, Face, Father, Finish, Fish, Food, Friend, Frustrated, Fun, Funny, Go, Good, Goodbye, Great, Happy, Hello, Help, Hospital, How, How much, Hungry, Husband, I love you, Jump, Key, Kid, Laugh, Lazy, Left, Like, Listen, Long, Love, Mine, Mother, Music, Nervous, Nice, No, Open, Pig, Please, Police, Pretty, Proud, Rabbit, Right, Run, Sad, Scared, School, Short, Show, Shower, Shy, Sick, Sit, Small, Smell, Smile, Sorry, Stand, Start, Stop, Study, Surprise, Taxi, Tear, Telephone, Thankyou, Thirsty, Tired, Ugly, Understand, Vegetable, Visit, Wait, Walk, Want, Welcome, What, When, Where, Which, Who, Why, Wife, Write, Yes, Zipper
SignSync
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Detect American Sign Language (ASL)
Screenshots
Verdict
The clearest difference is iOS requirement: SignSync at 12.0 against AI Sign's 15.0. 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.
| Parameter | AI Sign | SignSync |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (5 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | — | Every 11 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 130 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | RockCat Studio Limited | Coding Minds, Inc. |
In-app purchases
AI Sign
No in-app purchases
SignSync
No in-app purchases









