Project and task management decision

Underload

A small, single‑user app that surfaces one task at a time is realistic to build, but matching Underload's native two‑way Apple Reminders integration, cross‑device polish, and platform features is platform-specific and multi‑week work; consider using existing open-source task platforms and adding a Reminders sync adapter instead.

Visit website

You pay

Not priced

No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.

You’d pay instead

$100one-off160 h to build

$0/mo3 h/mo upkeep

No published price to break even against.

Open-source builds that already do this

Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Underload alternatives, with the arithmetic →

AppFlowyOpen-source collaborative workspace and Notion alternative that can be adapted for notes and tasks.Open on GitHub planeOpen-source project management platform (tasks, docs, triage) that can serve as a hosted task system.Open on GitHub

What a replacement has to do

Show a single task to the user, allow mark-done/postpone, and keep local task list in sync with Apple Reminders (two‑way).

What it still won’t have

App Store distribution and review/polish
Built-in Siri / Shortcuts integration tested across iPhone/iPad/Mac
Native widgets and platform-specific UI polish
Official support and updates from the vendor

What remains hard

Product polish and ongoing maintenance

Read the build prompt

First-year cost

No published price

Underload does not publish a price we could read, so there is nothing to compare against. What building costs is below.

Money you would actually spend

Keep paying

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Subscription price × seats × 12

Build it

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AI build —APIs + hosting —

Time you would spend

—

What you would spend

Your monthly price$/moAI to build it$ onceAPIs + hosting$/mo

What we assumed

Initial buildhrsMonthly upkeephrsYour rate$/hr

The verdict above measures whether you could build it. This one is only about money.

Runnable build prompt

Not run yet

Build a minimal cross-platform native macOS/iOS task app in Swift using SwiftUI and EventKit: implement two-way sync with Apple Reminders, a local CoreData cache, a single-task-focused UI (show one task at a time), list-based filtering, a random-task picker, and actions to complete/postpone tasks. Out of scope: App Store release packaging, Siri/Shortcuts actions, widgets, and multi-user collaboration. Include robust permission/error handling for EventKit failures, conflict reconciliation tests for sync, and unit/UI tests covering core flows.

How we checked3 sources · 3/3 runs agreed · evidence score 64

How the score was reached

Partly verdict base52
An open-source build was found+5
3 cited sources+3
3/3 assessment runs agreed+4
Evidence score64

The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.

How scoring works →

Cited sources · 3

Every page the run actually retrieved.

official productUnderload — Home
open sourceAppFlowy repository
open sourceplane repository

Integrity checks

What held up, and what did not.

✓ 3 independent runs, one answer✓ Citations limited to fetched pages! 1 moat recorded