Independent mobile products · Ukraine

Make the everyday easier.

We turn practical ideas into focused digital experiences. Our first app, Shopper's Tally, makes it easier to keep a clear picture of daily purchases.

Shopper's Tally promotional artwork showing a shopping expense tracker
Built for the little details
01 / Purposeful tools02 / Clear interfaces03 / Thoughtful development04 / Everyday usefulness
Introducing Shopper's Tally

More clarity.
Less guesswork.

Little purchases add up. Shopper's Tally helps bring them into view with a lightweight, straightforward record of what you spend.

01 / LOG

Capture purchases quickly

Keep track of amounts, items and quantities without complicated forms.

02 / REVIEW

Know what each day cost

See your daily totals and understand how individual purchases contribute.

03 / EXPLORE

Spot spending patterns

Browse your records across days, weeks and months.

04 / CONTROL

Shape your own routine

Choose your currency, set a daily target and opt in to reminders.

05 / PRIVACY

Keep entries on your device

Purchase records are saved locally, without requiring a user account.

06 / SIMPLICITY

Spend time on what matters

An approachable interface keeps the focus on your purchases, not the tools.

See it in action

A clearer view of your spending.

From a quick purchase entry to a look back at the week, the experience is designed to feel easy and familiar.

  • Everyday purchase tracking
  • History and useful summaries
  • Personalized spending preferences
View on Google Play ↗
Our direction

Good software starts
with a real need.

CHORNYY SLON LLC is developing its mobile product practice, with an emphasis on straightforward interfaces, reliable functionality and ongoing improvement.

01 — PRODUCT DESIGN

Interface & experience design

Thoughtful user journeys, visual systems and prototypes shaped around real tasks.

02 — DEVELOPMENT

Mobile application development

Building practical Android experiences, from early concepts to usable releases.

03 — QUALITY

Testing & refinement

Usability reviews, functional testing and iterative improvements before and after launch.

Contact the team

Have something
in mind?

For questions about Shopper's Tally or potential digital product collaborations, reach us directly. We welcome thoughtful conversations about useful software.

Start a conversation ↗
Office address

11, of. 18, vul. Shevchenka
Chernihiv, 14000, Ukraine

Telephone+380 99 408 0876
General enquiriesinfo@chornyyon.site
Product supportsupport@chornyyon.site