Below is an example of a detailed technical specification for the development of a mobile application.
Text composition
Technical specification
Project
Mobile application for random communication (roulette)
Platforms:
Android
iOS
1. Purpose of the project
Create a modern mobile application for dating, communication, and finding conversation partners based on random selection (Chat Roulette), with the ability to filter users by specified criteria.
The application must support:
text chat;
voice chat;
video chat;
instant switching to the next conversation partner;
search by interests;
search by country;
search by language;
search by gender;
search by age;
advanced filters;
moderation system;
administrative panel.
2. Types of communication
Text chat
Features:
message exchange;
sending Emoji;
GIF;
stickers;
photos;
videos;
documents;
voice messages;
message deletion;
message editing;
reply to message;
forwarding messages;
pinning messages.
Voice chat
Features:
call to one user;
random voice partner;
Next switch;
microphone mute;
volume adjustment;
call recording (if permitted);
noise cancellation;
HD Voice.
Video chat
Features:
Full HD
2K
4K (if device supports)
Functions:
camera switching;
background blur;
virtual background;
video off;
screen sharing;
recording;
screenshot;
picture-in-picture mode;
instant Next switch.
3. Roulette principle
The user presses the button
Start
After which the system automatically selects a random conversation partner.
There are buttons
Next
Pause
Stop
If there are no matches, a message is displayed
"Searching for a partner..."
4. Search filters
Age
18–25
25–35
35–45
45+
Gender
male
female
any
Country
Any country in the world
City
Optional
Language
All major languages
Interests
music
movies
travel
sports
programming
cars
games
animals
medicine
business
politics
education
any custom tags
Online
currently online
recently online
Type of communication
text
voice
video
5. Registration
Registration methods
Email
Google
Apple ID
Facebook
Telegram
phone number
anonymous mode
Verification
Email
SMS
CAPTCHA
6. User profile
Photo
Video
Name
Nickname
Age
Gender
Country
City
Interests
Languages
Description
Status
Registration date
Last online
Verification
Rating
7. Personal account
Communication history
Favorite users
Black list
Settings
Notifications
Premium subscription
Purchases
Payment history
8. Premium
No ads
Priority search
Region selection
Advanced filters
Unlimited likes
Unlimited switches
HD video
VIP badge
Invisible mode
9. Monetization
Subscription
One-time purchases
VIP
Gifts
Coins
Advertising
10. Administrative panel
User management
Blocking
Deletion
Photo moderation
Video moderation
Message moderation
Viewing complaints
Statistics
Online
Income
Payments
Push notifications
News
Banners
Application settings
Logs
Backup
11. Complaint system
Report
Reasons:
spam
fraud
insults
pornography
violence
minors
advertising
other
12. Security
SSL
HTTPS
Message encryption
Two-factor authentication
CAPTCHA
Anti-spam
Anti-bot
VPN/Proxy detection
Automatic moderation
AI moderation
13. Push notifications
New message
Missed call
New partner
Response to complaint
News
Updates
14. Technologies
Frontend
Flutter or React Native
Backend
Node.js
NestJS
Database
PostgreSQL
Redis
File storage
Amazon S3
Video and voice
WebRTC
Push
Firebase Cloud Messaging
Apple Push Notification Service
Admin panel
React
Vue.js
15. Performance
Time to find a partner up to 3 seconds.
Support for at least 1,000,000 registered users.
Up to 100,000 users online simultaneously.
16. Additional features
Real-time message translation
Voice translation
AI assistant
Automatic speech recognition
Automatic subtitles
Augmented reality (AR) masks
Background blur
Virtual rooms
Group video chats
Streaming
Create your own rooms
Invite friends
Profile QR code
Dark and light themes
Multilingual interface
Built-in analytics system
17. Compliance requirements
The application must comply with the requirements of Google Play and Apple App Store, as well as ensure the protection of personal data (GDPR) and support user consent for data processing.
This technical specification serves as a basis for commercial development. If necessary, it can be expanded into a full document of 100–150 pages with UX/UI prototypes, database architecture, API, screen layouts, user roles, moderation system, monetization, AI matching of partners, and detailed descriptions of each section.