Budget: 18000 UAH Deadline: 7 days
The deadline for a working APK with a short instruction can be approximately 5-7 days. For the budget, I would estimate starting from 18,000 UAH, because the main nuance here is not the screen with two buttons, but the stable operation of Telegram authorization and background sending on Android =)
Look, there’s a nuance - if the sending must be from the user's account, a careful approach through the Telegram API/TDLib is needed, including session storage, handling Android's restrictions on background tasks, and Telegram errors. If it can be done through a bot that is an admin in the channels, the implementation will be simpler and more reliable, but then there are limitations on scenarios.
I will clarify 2 things, without which the estimate may vary:
> should the sending be from a personal account or is a bot added by the admin in the channels acceptable?
> is the post only text or do you need images, videos, links, buttons?
Similar projects by logic are Ingello:
> https://business.ingello.com/vorfahr - automation and AI/SaaS logic, close in terms of reliable background processes
> https://business.ingello.com/fractal - agent and automated processes where the stability of scenarios is important
> https://systems-fl.ingello.com - Ingello Systems profile for automation and development projects
We can keep it simple - I would create a minimal APK, but with a proper sending architecture, a log of the last mailing, clear Start/Stop, and protection against resending in case of failures. Otherwise, it will be cheap, but then the app will start to sleep in the background, and all the savings will look like me on Monday morning - seemingly existing, but of little use.
