We build the products people open every day.

DevSan is the maker behind software, mobile experiences, and Telegram services — shipping usable products like San Balance.

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The maker

DevSan creates and runs digital products end to end.

We are not a marketplace listing. DevSan is the studio that designs, builds, and operates the experience — from brand and interface to Telegram bots and live apps.

0Active surfaces

0Flagship product

ENPrimary language

Web apps

Mobile PWA

DevSan Studio Creator of San Balance & companion services

Products

Shipped by DevSan

Our flagship product brings private personal finance to web, mobile, and Telegram — built and maintained by the same studio.

Website

Mobile app

Telegram bot

San Balance

A private multilingual personal finance and cash-flow tracker. English-ready across every surface DevSan operates.

Follow income and spending as a continuous cash-flow story
Use the full web app at app.devsan.de
Install the mobile PWA for a focused phone experience
Connect the Telegram bot & Mini App for quick updates

Open San Balance Open Telegram bot

Services

What DevSan delivers

Beyond our own products, we craft durable software surfaces — especially where web, mobile, and Telegram need to work as one system.

Product engineering

From idea to production: product UX, web apps, and progressive mobile experiences under one brand system.

Telegram bots & Mini Apps

Account-linked bots, secure chat flows, and Mini App shells that stay in sync with your product backend.

Operations & hosting

Runtime care for live products — domains, delivery, monitoring posture, and continuous improvement.

Legal

Terms & rules

By using DevSan websites, products, mobile experiences, or Telegram bots, you agree to the following.

Terms of Use

Studio & products. DevSan operates this site and ships products such as San Balance on web, mobile (PWA), and Telegram.
Eligibility. You must be able to form a binding agreement and use the services only for lawful personal or authorized business purposes.
Accounts. You are responsible for activity under your accounts and any linked Telegram identity.
No financial advice. Finance tools display information you enter. They do not provide tax, investment, or legal advice.
Acceptable use. Do not abuse, reverse engineer, overload, scrape, or attempt unauthorized access to DevSan systems or user data.
Third parties. Telegram, browsers, and ad networks have their own terms. DevSan is not responsible for their outages or policy changes.
Availability. We work for reliable uptime but do not guarantee uninterrupted access.
Liability. To the fullest extent allowed by law, DevSan is not liable for indirect or consequential damages from use of the services.
Changes. Terms may be updated. Continued use after publication means acceptance of the revised terms.

Governing language: English. Last updated: 8 August 2026.

Privacy summary

We process account, usage, and product data needed to operate DevSan services.
Telegram linking associates your chat identity with your product account when you connect it.
Marketing pages on devsan.de may use Google AdSense (ca-pub-7089477087276022) and related cookies where permitted.
Do not paste secrets (passwords, full card numbers, government IDs) into free-text fields.