Redstone Oak Investments LLC

We design and build
software people keep.

A privately held development company working across native mobile applications, web services and the infrastructure behind them. We take a product from the first sketch through App Store release, then keep running it afterward.

See our work Contact us
iOS watchOS Swift & SwiftUI Web Edge infrastructure
A scripture passage given the full screen in the TEMPLE app. The TEMPLE Today screen showing the day's verse, session and dose on one timeline. TEMPLE's exercise library, each movement drawn at its start and its finish.

What we build

Three practices, one team.

The range is deliberately broad. We take a small number of projects at a time and stay with them well past launch. The constraint is quality, not category.

Mobile applications

Native software for Apple platforms, designed and engineered end to end.

  • iOS and watchOS apps in Swift and SwiftUI
  • Widgets, Live Activities and complications
  • In-app purchases and subscriptions
  • App Store submission and release management

Web & services

The sites, APIs and backends that products depend on.

  • Marketing sites and product pages
  • APIs, workers and serverless backends
  • Domains, DNS, mail routing and TLS
  • Analytics and privacy-respecting telemetry

Product development

Taking an idea from concept to a shipped, maintained product.

  • Product definition and scoping
  • Interface design and prototyping
  • Release engineering and QA
  • Long-term support and iteration

Selected work

Products we build and own.

We develop our own software rather than billing hours against someone else’s roadmap. Everything below is live and maintained by us.

iOS · iPadOS · watchOS Live on the App Store

TEMPLE

A daily record for scripture, training and a physician-directed protocol, kept on a single timeline. Built entirely on-device: no account, no server, and nothing the user enters ever leaves their phone.

Shipped with a companion Apple Watch app, home-screen widgets, Live Activities for training sessions, HealthKit integration and StoreKit subscriptions. Version 1.1 rebuilt the training pillar around an illustrated exercise library.

  • 254exercises, illustrated at both ends of the movement
  • 152scripture readings across six plans
  • 3platforms from one codebase: iOS, iPadOS, watchOS
  • 0servers, accounts and lines of networking code
PlatformsiOS 17+, iPadOS, watchOS
Built withSwift, SwiftUI
Released2026
Download on the App Store templedaily.app

The campaign we shipped with it

App Store panel: Scripture, training and protocol. All in one app. App Store panel: 254 exercises, every one illustrated. App Store panel: Track every dose, on schedule. App Store panel: Log a set, the rest timer starts itself.

Store listing, screenshots, copy and site, produced in house.

  • DesignInterface, type system, iconography and the App Store panels above.
  • EngineeringOne SwiftUI codebase across iPhone, iPad and Apple Watch.
  • ReleaseApp Store Connect, StoreKit products, review and phased rollout.
  • InfrastructureSite, domains, mail routing and TLS on Cloudflare.

Capabilities

What we work with.

Tools and frameworks we use day to day in shipped production software.

Apple platforms

  • Swift & SwiftUI
  • watchOS & WidgetKit
  • HealthKit
  • StoreKit 2
  • App Store Connect

Web

  • HTML, CSS, JavaScript
  • Static & edge-rendered sites
  • Responsive interface design
  • Accessibility & performance

Infrastructure

  • Cloudflare Workers & Pages
  • Edge databases & object storage
  • DNS, TLS & mail routing
  • CI and release automation

Practice

  • Privacy-first architecture
  • On-device data handling
  • Automated testing
  • Long-term maintenance

Contact

Let’s talk about your project.

For new work, partnerships, or questions about anything we’ve built. We read everything that comes in and reply to all serious enquiries.

[email protected]