Bollar Apps
apps.bollar.org
Independent Apple developer · Sunshine Coast, Australia

Precision utilities
for people who
care about the data.

Native applications for Apple platforms. No subscriptions on utilities. No data collection. No accounts. Built to last — by one developer who uses every app shipped.

D6
DeepSix
Dive Memory System · iOS · iPadOS · macOS · tvOS
A native Apple dive logging app for divers who care about their data. Full MacDive import, Shearwater GPS extraction, Apple Watch integration, offline-first architecture, and AI-assisted marine life identification. Your dives. Remembered properly.
TESTFLIGHTiPhoneiPadMacApple TVApple Watch
● TESTFLIGHT Join TestFlight ↗deepsixdive.com ↗GitHub (MIT) ↗
NTP
±ms
TrueOffset
Precision NTP Clock · iOS · iPadOS · macOS · tvOS
Compare NTP servers, visualize clock drift, and display UTC and TAI with authentic deadbeat second hands. Four clock faces including an NTP Offset view with dual second hands showing device vs. true time on a ±10ms scale. Dual IPv4/IPv6 stack comparison — a feature no other NTP app offers.
FREEiPhoneiPadMacApple TV
● LIVE App Store ↗
kWh
↑↓
Energy Controller
For Powston · Battery & Energy Control · iOS · watchOS · tvOS
Monitor and manage battery, solar, and grid energy via Powston's public APIs. Current energy overview, battery state of charge, pricing with spike alerts, five-minute interval history, and manual overrides with Live Activities on the Dynamic Island. Standalone Apple Watch app — no iPhone required.
FREEiPhoneiPadApple WatchApple TVPOWSTON REQUIRED
● LIVE App Store ↗
Principles
Your data stays yours.
None of these apps collect your data. None require an account. Credentials and preferences are stored locally on your device. The developer has no access to what you measure, log, or monitor.
Built to last.
Utilities should be reliable for years, not deprecated with the next OS cycle. Where possible, source escrow or open-source release is planned if a project is ever abandoned. UDDF export in DeepSix is always free — your dive history is not held hostage to a subscription.
Native, or not at all.
Every app here is built with current Apple frameworks — SwiftUI, SwiftData, CloudKit, HealthKit, Network.framework. No cross-platform wrappers, no Electron, no React Native. Platform-native means it behaves like software you already know.
Privacy Policy

All Bollar Apps share the same policy: no personal data is collected, sold, or shared.

Apps that connect to external services (Powston APIs, NTP servers, DeepSix enrichment services) do so only on your instruction, using only your own authorized credentials. Data fetched is used to display information on your device. Nothing is transmitted to the developer.

DeepSix AI features (marine life ID, travelogue generation) use the Anthropic Claude API via your own API key or consumable credits — the developer has no access to your photos or dive data processed by Claude.

Questions: [email protected]