Eren Tutgun
Hi — I'm Eren. I'm a university student, and I build and ship production software on my own. This page is the honest inventory of what's real so far.
Native iOS apps, a live web product, real backends, real users — built one at a time, every layer learned along the way.
Current status — July 2026
- Live
- 1RentalKit
- Approved, listing soon
- 1Slipvault
- In App Store review
- 2Nuvelz · Hearth
- In final testing
- 1Duesy
The work
-
01
Nuvelz
Game deals and price tracking that surfaces the discounts actually worth your attention, across storefronts — push notifications, live backend.
-
02
Slipvault
A vault for purchases, receipts and warranty end dates — so the proof is there the day something breaks.
-
03
RentalKit
For tenants: a room-share agreement builder, moving checklists, and country-specific rent document guides — in twelve languages.
-
04
Hearth
Private AI chat that talks to your own Ollama server instead of the cloud. No message ever leaves your hardware.
-
05
Duesy
Subscription tracking ordered by whatever is due next, wrapped in a warm paper-calendar identity.
About
I'm a university student shipping production software solo. I've carried real products from idea to the store shelf, one by one — across gaming, personal belongings, legal documents for tenants, AI & privacy, and personal finance. The list keeps growing.
Nuvelz didn't have to prove anything. It was one question: could a student with no team take an idea all the way to native iOS code, a live backend and App Store review — with only AI agents at his side? It could — it's in review right now. Then Slipvault, RentalKit, Hearth and Duesy followed on the same road: RentalKit is already live, Slipvault just cleared Apple's review, and the rest are close behind. Separate experiments on the same bet: can one person, willing to learn every layer, build something people actually trust?
This is not a closed list. The next one is already on the way.
Questions I actually get
Did you really build these yourself?
They're real. RentalKit is live with real users. Slipvault just got approved by Apple and is about to appear on the App Store. Nuvelz and Hearth are in App Store review, and Duesy is in final testing. None of it is coursework — all of it is production software.
Why no team, no co-founder?
Because right now the point is learning every layer myself — design, native code, backend, localization, release. A team would make it faster; doing it alone is what makes each layer actually mine.
What's next?
Getting Nuvelz and Hearth through review, watching Slipvault go live, pushing Duesy out of final testing, growing RentalKit's twelve languages — and starting the next idea as soon as there's room in the queue.
Contact
If any of this is useful to you — or you just want to ask how something was built — write to me. I read everything.
erentutgun74@gmail.com