Johnston Software & Services, LLC
We design, build, and publish software for iPhone, iPad, Apple Watch, and the web.
Johnston Software & Services, LLC is an independent software company based in Tigard, Oregon, United States. We ship a focused portfolio of privacy-first utility apps for photographers, video producers, amateur radio operators, and distributed teams. Every product listed below is designed, developed, marketed, and supported by this company.
Our Apps
| App | Platforms | What it does | Website |
|---|---|---|---|
| Shotcast | Web app (installable PWA) | Scores every forecast hour for landscape photography: golden hour, blue hour, fog, cloud drama, and tides, so photographers know when the light is worth chasing. | https://shotcast.photos |
| Meridian | iPhone, iPad, Apple Watch | A time zone app that draws each place's real daylight, so you can see who is awake, who is reachable, and when the clocks are about to change. | https://meridiantimezone.com |
| DiskDyno | iPhone, iPad, Mac (Designed for iPad) | A drive speed benchmark that grades its own results. Measures real read, write, and sustained throughput, and tells you when to doubt the number. | https://diskdyno.com |
| SkyWave | iOS and Android | An HF band conditions companion for amateur radio operators, with band recommendations keyed to your Maidenhead grid square. | https://skywaveradio.app |
Shotcast
The landscape photography forecast. Shotcast scores each hour of the forecast against 33 documented photographic "looks," from radiation fog to afterglow to rime ice, so a photographer can decide which mornings are worth the drive. Free, offline-first, and no account required.
Product site: https://shotcast.photos
Meridian
A time zone instrument for people who work across the world. Each place or person gets a lane shaded by real solar math, computed from that location's own coordinates, with working hours, daylight saving warnings, widgets, Lock Screen accessories, an Apple Watch app, and Siri and Shortcuts support. One-time purchase, no subscription, no account, and no server.
Product site: https://meridiantimezone.com
DiskDyno
An honest storage benchmark for iPhone and iPad. DiskDyno bypasses the read cache on every test, then proves the bypass actually reached the device, and grades each result Verified, Suspect, or with its caveats named. It reports sustained throughput separately from opening burst and checks the measured speed against 120 combinations of codec, resolution, and frame rate. Free to start, with a one-time Pro unlock.
Product site: https://diskdyno.com
SkyWave
An HF propagation companion for licensed amateur radio operators. SkyWave recommends a band worth trying right now from your grid square, with a confidence read, an NVIS visualization, saved locations, recommendation history, and a Home Screen widget. Backed by a 21-term propagation knowledge base.
Product site: https://skywaveradio.app
About the Company
| Item | Detail |
|---|---|
| Legal name | Johnston Software & Services, LLC |
| Business type | Limited liability company |
| Location | Tigard, Oregon, United States |
| Founded | 2025 |
| Principal | Phil Johnston, II |
| Business activity | Design, development, publication, and support of consumer and professional software applications |
We build small, sharply scoped tools and support them directly. Our apps carry no advertising SDKs, no third-party analytics, and no user accounts. Where an app stores data, that data stays on the customer's own device or in their own iCloud account.
Contact
| Channel | Detail |
|---|---|
| General and business inquiries | contact@philjohnstonii.com |
| Shotcast support | https://shotcast.photos |
| Meridian support | https://meridiantimezone.com/support |
| DiskDyno support | https://diskdyno.com/support |
| SkyWave support | https://skywaveradio.app/support/ |
| Mailing address | PO BOX 230614 Tigard OR, 97281 |
| Phone | +1 (971) 202-0251 |
Legal
Each product publishes its own privacy policy and terms of use.
© 2026 Johnston Software & Services, LLC. All rights reserved.
Johnston Software & Services, LLC is not affiliated with Apple Inc. Apple, iPhone, iPad, Apple Watch, and Mac are trademarks of Apple Inc.