Back Forty Apps
Back Forty Apps

Small, honest tools
for country living.

Five offline apps for the well, the septic tank, the root cellar, the solar array and the backup generator. Built for people who fix things themselves.

  • No ads
  • No tracking
  • Data stays on your phone
  • Works offline
  • All ages

The apps

  • Well Watch

    Private well testing tracker

    Log well water tests and upkeep, see when the next test is due, and read CDC/EPA reference levels.

    Coming to iPhone & Android
    SupportPrivacy

  • Septic Watch

    Septic pump log & Texas estimate

    Keep pump-outs and inspections in one place, watch the pump window, and run a Texas planning estimate.

    Coming to iPhone & Android
    SupportPrivacy

  • Cellar Keeper

    Root cellar & pantry inventory

    Track what went into the cellar, look up cited storage conditions, and check which crops can share a bin.

    Coming to iPhone & Android
    SupportPrivacy

  • Solar Sizer

    Off-grid solar planning calculator

    Turn a list of appliances into panel, battery, inverter and charge-controller estimates.

    Coming to iPhone & Android
    SupportPrivacy

  • Backup Watts

    Generator load sizing

    Size a portable or standby generator from running and starting watts, and keep generator safety basics handy.

    Coming to iPhone & Android
    SupportPrivacy

The Back Forty promise

Your data stays home

Everything you type is saved on your phone. We don’t run a server that collects it, and there is no account to make.

No ads, ever

No ad networks, no analytics, no trackers. Nothing is watching what you do in the app.

Works off the grid

Once installed, the apps work without a signal. Handy in the barn, the cellar or a power outage.

Fine for the whole family

Rated for all ages. No chat, no loot boxes, no purchases in version 1.0. More for parents.