Topos

Free & open source · macOS + iOS

Apartment hunting, finally
organized 

Track every listing, cost, and tour in one native app that syncs across your Mac and iPhone via iCloud — and does the math you'd otherwise redo in a spreadsheet.

Places

Name, address or phone New
Maple Court #4B
Maple Court #4B$2,840/mo
Top ChoiceMove-in $4,950
2 bd · 1 ba · 780 sqft
The Adeline
The Adeline$2,610/mo
AppliedMove-in $3,200
1 bd · 1 ba · 640 sqft
Linden Lofts
Linden Lofts$3,120/mo
TouredMove-in $5,400
2 bd · 2 ba · 910 sqft
Cedar & 9th
Cedar & 9th$2,475/mo
To Call
Studio · 1 ba · 520 sqft
Maple Court #4B
Maple Court #4B$2,840/mo
Top ChoiceMove-in $4,950
2 bd · 1 ba · 780 sqft
The Adeline
The Adeline$2,610/mo
AppliedMove-in $3,200
1 bd · 1 ba · 640 sqft
Linden Lofts
Linden Lofts$3,120/mo
TouredMove-in $5,400
2 bd · 2 ba · 910 sqft
PlacesCompareSettings
Native Mac & iOS·Syncs via iCloud·No account, no tracking·Free & open source·Native Mac & iOS·Syncs via iCloud·No account, no tracking·Free & open source·Native Mac & iOS·Syncs via iCloud·No account, no tracking·Free & open source·Native Mac & iOS·Syncs via iCloud·No account, no tracking·Free & open source·

The numbers that actually decide

The headline rent is never the real number.

Topos surfaces the figures that decide affordability, so you can compare places side by side with confidence.

True monthly cost

Rent plus every recurring fee — parking, pet, amenities, estimated utilities, renter's insurance — so you compare real numbers, not headline rent.

Move-in cash

Deposits and one-time fees totaled up front, optionally including first and last month, so there are no surprises at signing.

Net-effective monthly

Concessions like “6 weeks free” amortized across the lease term, turning marketing math into the number you'll actually pay.

A simple pipeline

Move each place through To Call → Toured → Applied → Top Choice or Rejected, and always know what's next.

How it works

One search, two apps, the same data.

01

Capture on the go

Scan a listing, snap photos, and rate a place from your iPhone the moment you see it.

02

Compare on the big screen

Open your Mac to weigh places side by side, edit details, and manage photos.

03

Decide with real costs

Let Topos amortize concessions and total recurring fees so the right choice is obvious.

Syncs via iCloud

Capture a listing on your iPhone, compare on your Mac. The same data, live, with no account to create.

Private by design

Your search lives in your own iCloud container. No tracking, no servers, no sign-up.

Optional AI

Add a Gemini key to scan listing text into fields and chat through trade-offs. The key stays on-device.

Open source

Read the code. Fork it for your own search.

Topos is MIT-licensed and built in the open. The data format is plain JSON with a stable schema, so it's a great project to learn from, contribute to, or adapt to your own move.

Get Topos — free.

Available for macOS and iOS, synced through your own iCloud.