Calpin Labs

An independent iOS studio

Small apps for the everyday things.

I'm Ryan Calpin. Calpin Labs is where I design and build iPhone apps on my own, with AI tools alongside me. Each one takes on a single job, and gets finished with care.

See the apps

The apps

Free to download on the App Store.

  1. LoopletCrochet Companion

    Lifestyle

    Keeps your place and frees your hands, so you can focus on the make, not the math.

    • Tap-anywhere stitch and row counters, with per-pattern goals
    • Import your own patterns; tap any abbreviation to see what it means
    • Log the yarn you own by weight and color
    View on the App Store About Looplet
    Looplet pattern reader showing a Market Tote Bag pattern with stitch and row counters at the bottom of the screen Looplet Focus Mode with just the stitch and row counters on a dark background

  2. DaysUpCount Anything

    Utilities

    Counts up from any moment and shows how much time has passed, live, down to the second.

    • A new job, a new home, an anniversary, a habit: the headline is days, and a tap shows the full breakdown
    • Home Screen and Lock Screen widgets, plus Live Activities
    • Optional milestones and goals, off by default
    View on the App Store About DaysUp
    DaysUp home screen listing trackers such as Sam & me at 1,180 days, a new home at 412 days and last takeout at 18 days A single DaysUp tracker showing 412 days with the live breakdown of hours, minutes and seconds

  3. LedgerCredential Tracker

    Productivity

    Point your camera at a CE certificate. Ledger keeps licenses, certifications and continuing-education credits current.

    • Scanning runs on your device with Apple Intelligence; no accounts, no servers
    • Fitness-style rings show exactly where each credential stands
    • Export an audit-ready PDF transcript or CSV in one tap
    View on the App Store About Ledger
    Ledger dashboard with compliance rings for an RN license and an ACLS certification, and a headline counting the days left to renew Ledger scanning a continuing-education certificate and filling in the title, provider, hours and completion date

  4. FurnestFamily Pet Records

    Lifestyle

    The warm, simple home for vaccines, vet visits, meds, weight and reminders for every pet in the family.

    • One place for vaccines, vet visits, medications, weight, food, dental and grooming
    • Reminders before anything is due: the day before, and the day of
    • Scan a vet card or receipt and it becomes a structured record
    View on the App Store About Furnest
    Furnest family overview listing two pets, Lola and Alfonzo, with this month's vet visits, vaccines and weigh-ins A Furnest pet profile for Alfonzo with his photo, upcoming vaccines and health records

About

Calpin Labs is a one-person studio. I pick a small, real problem, design the whole thing myself, and build it with AI tools as a working partner. The result is a set of apps that stay out of your way and keep your data on your own devices.