When does the trial start?

The first time you open the writing screen. Shooting a roll and getting it developed can take weeks, so counting from install would waste it.

Is this a subscription?

No. It is a single purchase, so there is nothing to cancel and nothing renews.

What happens on a new phone?

Use Restore Purchases with the same Apple Account. Once the purchase is restored, your rolls come down from your own iCloud as well. Without the purchase, what you logged stays on the old iPhone.

Does it need an internet connection?

Only for the purchase itself, and for iCloud sync once you have bought it. Syncing goes through your own iCloud account — there is no Koma account to make, no analytics, no third-party SDK, and no server of ours.

Film has no EXIF. Put it there.

Turn the Digital Crown on your Apple Watch and press once. Aperture, shutter and where you stood are logged in about three seconds — and written into your scans when they come back from the lab.

App Store See how it works

On the App Store: Koma Film Log

iPhone + Apple Watch · English / 日本語 / 简体中文

Why the wrist

Because on your phone, you stop after a few frames

Keeping notes on film is not a new idea. Keeping them for a whole roll is where every method falls apart.

A phone takes too long

Pull it out, unlock, switch apps, type. Thirty-six times for one roll. Almost nobody gets past the first few frames.

Paper does not work in the dark

One hand is on the camera. It is dim, it is cold, your fingers are wet. A notebook is not going to happen.

Memory lasts about three frames

By the time the scans come back weeks later, nobody remembers which frames were wide open and which were stopped down.

Your watch is already on your wrist

Shutter, wrist up, two notches on the crown, wrist down. The values carry over from the last frame, so most of the time it is one press.

How it works

Four steps, and a gap of several weeks in the middle

Shoot, then logAperture and shutter on the crown. Time, place and bearing are added on their own.

Develop and scanThis part happens outside the app, and it usually takes a while.

Import and line upScans often come back reversed, or with the film leader as an extra frame. One tap fixes the order; tap a scan to skip it.

Write it inYour shooting data goes into the scans as EXIF. You confirm the line-up first — nothing is written automatically.

Follow one roll all the way through

What you get

The scans stop being loose files

Everything below is what a digital photo has had all along, and film never did.

Filed under the day you shot it

Not the day the lab scanned it. Your film sits on the same timeline as everything else you shot that week.

On the map

Where you stood is written in as GPS, so the frames show up in the places you took them.

Searchable

Find the ones you shot wide open, or on a particular lens, the same way you would with digital files.

Readable everywhere

Standard EXIF tags, so Lightroom, Capture One and the Photos app all read them without anything extra.

What it will not do

Your scans come back untouched

The original file is never modified
New files are written to a folder you choose. What the lab gave you stays exactly as it was.

The image is not re-encoded
Only the metadata is replaced. The compressed image data is copied through byte for byte, so nothing is lost a second time.

TIFF has a limit worth knowing
If your scanner already wrote EXIF into a TIFF, that data cannot be replaced — only fields that were missing, such as location, get added. The shot date is the exception: it is always written, so one file never carries two different dates. JPEG has no such restriction.

Price

One payment. Logging stays free.

US$19.99one-time purchase

Seven-day trial, counted from the first time you open the writing screen — not from when you install it
Logging, rolls, gear, importing and lining up stay free after the trial ends
Writing EXIF into your scans, and keeping your rolls on your other devices over iCloud, are the paid parts
No subscription, nothing renews, and you can restore the purchase on a new device

The trial starts when you open the writing screen because developing takes weeks. Counting from install would end it before your film came back.

Questions

Before you ask

When does the trial start?: The first time you open the writing screen. Shooting a roll and getting it developed can take weeks, so counting from install would waste it.
Is this a subscription?: No. It is a single purchase, so there is nothing to cancel and nothing renews.
What happens on a new phone?: Use Restore Purchases with the same Apple Account. Once the purchase is restored, your rolls come down from your own iCloud as well. Without the purchase, what you logged stays on the old iPhone.
Does it need an internet connection?: Only for the purchase itself, and for iCloud sync once you have bought it. Syncing goes through your own iCloud account — there is no Koma account to make, no analytics, no third-party SDK, and no server of ours.
Which files can it write into?: JPEG and TIFF. If your scanner already wrote EXIF into a TIFF, those values cannot be replaced — only fields that were missing, such as location, get added. The shot date is the exception and is always written. RAW scans are not supported.