Comparison

Signo Application vs Black White Chat

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Signo Application

This application offers instant sign language interpretation, bridging communication gaps for individuals with hearing disabilities. It aims to foster better communication among all members of society.

Highlights
  • Instant sign language interpretation
  • Communication bridge for hearing disabilities
  • Promotes societal communication
  • Accessible on iOS devices
Features
Read full description

MetaSign a distinctive application that provides instant interpretation service in sign language for people with hearing disabilities. We strive to provide the best ways of communication between all members of society.

About

Black White Chat

Features
Read full description

View Dots worldwide and chat No name chat Chat delete No content in the app Black White allows you to view the locations of individuals worldwide and chat. ​​Each user is assigned a unique number represented by a Dot on the map. Try to locate Black or White Dot on the Earth map. These Dots can sometimes be difficult to spot. ​​The Black White logo can be moved in four directions: up, down, left, and right. ​Moving the logo upward will make your Dot appear on the Earth map as either a black or white Dot. Moving the logo left or right will change the color of your Dot between black and white. By scrolling on the Earth map, you can discover other Dots, both near and far. Click on a Dot to view its assigned number and zoom in on its location. Chat with the Dot. There is a search function under the menu where you can search for a specific Dot and see its location on the map. Moving the logo downward will make your Dot and location disappear from the Earth map and chat is ereased The top center of the screen displays the total number of people currently on the Earth map. The top right corner shows your unique user number.

Screenshots

Signo Application4 screens
Black White Chat4 screens

Verdict

The call

The clearest difference is in-app purchases: Signo Application at none against Black White Chat's 2. Black White Chat's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Black White Chat sells 2 one-off in-app purchases. Signo Application asks for nothing beyond the download.

UpkeepUpdate frequency

Signo Application ships an update every 2 months, Black White Chat every 3 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 7 level
Signo Application versus Black White Chat: the parameters behind the verdict, then further details
ParameterSigno ApplicationBlack White Chat
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size135 MB76 MB
Age rating4+4+
DeveloperMETA SIGN COMPANY FOR SPECIAL NEEDS SERVICESIT'S A WRAP AB

In-app purchases

None

Signo Application

No in-app purchases

2 purchases

Black White Chat

One-time2
  • 1 Month Membership$2.99
  • One year subscription$19.99

Questions

Is Signo Application free?
Signo Application is free to download, with no in-app purchases.
Is Black White Chat free?
Black White Chat is free to download, with in-app purchases available.
Do Signo Application or Black White Chat have ads?
Neither Signo Application nor Black White Chat shows ads.
Which is updated more often, Signo Application or Black White Chat?
Signo Application ships an update every 2 months, and Black White Chat every 3 weeks. Most recently, Signo Application was updated on October 27, 2026 and Black White Chat on October 25, 2026.

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