Tregu Run the numbers

Tregu, the market in your pocket.

An iPhone app that reads one investing spreadsheet and turns it into live holdings, a monthly buying plan, savings and projections in today's money.

Run the numbers
The covered street of the old bazaar in Krujë, stalls hung with textiles on both sides

Tregu is Albanian for the market.

The old bazaars ran on a simple rule: know what you hold, buy a little every month, and keep the books honest.

Tregu keeps that rule for an ETF portfolio. One spreadsheet stays the source of truth and does every calculation. The app reads it every minute while it is open and puts the answers where a glance can find them: what you own, what moved today, what you buy next and where it all leads.

A red two-storey house above the shops of the old bazaar in Korçë
The old bazaar, Korçë.

Run the numbers

This is the projections screen from Tregu. Move a slider and the years ahead redraw at once.

In 20 years you'd have

€309,000

In today's money

€188,000

Money put in

€135,180

Value Money put in Today's money

How projections work

Start with the monthly amount. Everything is worked out in your browser and nothing is sent anywhere.

Tregu

Net worth

€48,260

+€212.30 today on your ETFs

One glance, every answer

See where the money is.

Every fund with its value, its share of the portfolio and the target it should sit at. Switch between amounts and weights.

Know your next money day.

The recurring plan splits each month's buy across the funds by their targets. Change the amount and the split follows.

Rebalance without guessing.

When a fund drifts from its target, Tregu shows the money to move and the tax the sales would cost, before you touch anything.

Made for iOS 26.

SwiftUI, Liquid Glass on the tab bar and controls, light and dark, Shortcuts for the numbers you ask for most, and reminders before each money day.

Stalls and shoppers in the open market square of Korçë under a cloudy sky
Market day in the old bazaar, Korçë.
A stone-paved street in the Gjirokastër bazaar, white diamond patterns laid into the grey cobbles
The bazaar street, Gjirokastër.

How it works

First, keep your sheet.

FundSharesPriceTarget
Global stocks239.0€100.0060%
Europe137.0€40.0015%
Bonds98.0€40.0010%

Global stocks

61.0% · target 60%

€23,900

The sheet does all the maths: prices, gains, weights, projections. Tregu reads the results and draws them.

Then, set the month's plan.

New recurring buy

FundEurope

Monthly amount€60

DayEvery month on the 10th

Europe

target 15% · after 14.8%

+€60

The plan and the savings settings are the only two things Tregu ever writes back to the sheet.

Finally, look once a day.

Net worth

€48,260

+€212.30 today on your ETFs

Where the money is

Questions