GreenZone · İstanbul · Est. in print

From the printed page to the App Store.

GreenZone is an İstanbul bookselling & publishing house that now crafts consumer software. Our first app, GoldWise, helps people across ten countries pay a fair price for gold.

Discover GoldWise Our story
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01 The House

We spent years putting stories in people's hands. Now we put useful tools there, too.

GreenZone began as a kitabevi — a bookseller and publisher trading in İstanbul. Publishing taught us the disciplines that good software demands: editing until only the essential remains, respecting the reader's time, and standing behind every page we put our name on.

Today we apply that same editorial care to mobile apps for everyday decisions — starting with one of the oldest purchases in our part of the world: gold. We design, build, and operate our products end-to-end from İstanbul, for markets from the Gulf to North America.

  • İstanbulBorn & based
  • Print → DigitalOne craft, two mediums
  • 10 marketsTR · Gulf · Egypt · Algeria · US · Canada
  • 3 languagesEnglish · Türkçe · العربية
02 The Flagship — GoldWise

Know the fair price before you say yes.

In the bazaar, the souk, or the mall, gold is priced with a story attached. GoldWise separates the gold from the story: enter the weight, the karat, and the asking price — it computes the item's true gold value from live market prices and tells you, on a simple gauge, whether to buy, negotiate, or walk away.

  • Live market truth

    Global gold prices and exchange rates, adjusted for your country's real market premiums.

  • A verdict, not a spreadsheet

    A color-coded gauge turns eight steps of pricing math into one instant, honest answer.

  • AI craftsmanship analysis

    Premium members snap a photo — AI judges whether the workmanship justifies the markup.

  • Negotiate with a number

    Premium reveals the exact counter-offer to aim for, in your currency, rounded and ready to say out loud.

Coming soon on theApp Store Coming soon onGoogle Play
9:41 GoldWise ₺ TRY Good price Markup 14% · within fair range ✦ Negotiate toward ₺61,878 Weight 15.0 g Karat 22K · 91.7% Asking price ₺64,000
Gold · today$106.10/g · 24K
AI analysisCraftsmanship ◆◆◇
0steps of pricing math,
one honest gauge
0launch markets across
three continents
0karats understood —
and every one between
0days — then evaluation
photos auto-delete
03 Principles
I

Honest numbers

GoldWise informs — it never pressures. Our verdicts are estimates built from public market data, clearly framed as guidance, never as financial advice.

II

Privacy as a default

We collect only what the product needs, photos delete themselves after ~30 days, and we never see your card details. The full story is in our Privacy Policy.

III

Local nuance

A souk in Doha and a mall in Toronto price gold differently. Our models respect each market's premiums, customs, and negotiation culture.

IV

Editorial restraint

Publishing taught us to cut until only the essential remains. Our apps carry no clutter, no dark patterns, no noise — just the answer you came for.

04 Contact

Write to us.
We answer like publishers — carefully.

info@greenzoneapps.com

Partnerships, press, support, or a good book recommendation — all welcome.