NeuroSpark Planner: An Offline-First Planner Built for the ADHD Brain

Many productivity apps assume you can plan, prioritise and follow through in a linear way. For many neurodivergent adults, that assumption is where things break down. A long task list or a rigid calendar can feel overwhelming on a day when executive function is low, and the tool meant to help ends up unused.

NeuroSpark Planner is presented as a planner built for those days. The product page describes it as "A Planner Built for the ADHD Brain — With AI That Works Offline." It is an offline-first progressive web app (PWA) for neurodivergent adults that brings together tasks, habits, journaling and an on-device AI coach. This guide explains what it includes, how it works and who it is likely to suit, using only the details from the product page.

What NeuroSpark Planner is

NeuroSpark Planner is a planner from AeternusVita for neurodivergent adults. The page frames it with a direct line: every productivity app assumes you have the executive function to use it, and NeuroSpark is built for the days you do not.

It offers visual tasks and AI coaching that responds, in a format that works anywhere because it is offline-first. As a PWA it runs in the browser and can be installed to a device like an app, without a separate store install to get started.

The brief lists the main areas as Today, Tasks, Week, Trackers, Journal, and AI Coach, and states that all work offline. Together they cover the routine parts of planning: what is due today, how tasks sit across the week, how habits are progressing, a place to journal, and a coach to help you think through the next step.

The planner is described as a productivity structure for organising tasks and reflection. It does not claim to treat or manage a medical condition, and it does not replace professional support where that is needed.

Why typical planners can feel hard with ADHD

ADHD can affect executive function, which includes starting tasks, holding a plan in mind, switching between tasks and estimating time. This is general information about how these processes work, not a statement about any individual.

On a low-capacity day, a long undifferentiated list can make it harder to choose where to begin. Open-ended tasks such as "sort finances" need extra breakdown before they feel actionable. If the app also needs a connection to load, the friction grows.

Educational resources on ADHD and planning often point to the same helps: breaking tasks into small visible steps, making today distinct from the week, keeping recurring actions visible, using a brief journaling prompt to close the loop, and having a way to talk through a plan when stuck.

How it works: Today, Tasks, Week, Trackers, Journal and AI Coach

The product page lists six areas and states that all work offline.

Today shows what is planned for now, which reduces the need to scan a full backlog. Tasks is the wider holding area before items are placed on a day; the brief emphasises visual tasks that are easy to scan at a glance. Week shows tasks across the week so you can balance load before adding more.

Trackers cover habits and repeated checks without recreating the entry each time. Journal keeps reflection and planning together in one place. AI Coach is the conversational layer, described as coaching that actually responds. Together they form a loop: capture tasks, place them on Today or Week, track habits, reflect in Journal, and use the Coach when unsure where to start.

Hybrid AI: on-device by default, optional cloud fallback

The brief states a hybrid AI setup: WebLLM (Phi-3.5-mini, in-browser) by default, with an optional cloud fallback.

WebLLM running Phi-3.5-mini in the browser means the model runs on the device itself. That is why coaching can work without a connection. Prompts and responses stay in the browser environment and remain available offline.

The optional cloud fallback is exactly that — optional. The brief does not describe when it is used or what model serves it, only that it exists as a choice beyond the default. If you keep the default, coaching stays on-device.

This fits the offline-first design. Tasks, habits, journaling and the coach are all described as working offline, so you can plan on a train, in a building with patchy signal, or at home without needing a connection to open the app or get a response.

The brief does not describe the coach as providing medical or therapeutic advice. Treat it as a planning aid for breaking down tasks, rephrasing a plan or thinking through priorities, and keep health questions for appropriate professional sources.

Private by design and local-first storage

The product page describes the planner as "no data leaving your device" and "private by design," with local-first storage via Dexie/IndexedDB.

Dexie wraps IndexedDB, the browser's local database. Local-first means tasks, trackers and journal entries are stored on the device rather than on a remote server by default. The brief also notes 10 locales with full RTL support, so this offline behaviour applies across languages.

The brief uses the phrase "no subscription, no data leaving your device" and separately lists a free tier plus a Pro tier. Read together, the page presents a free entry point with an optional paid tier for AI coaching and advanced tracking, while keeping storage local-first. Check the product page for which parts require Pro.

Free and Pro: what the product page shows

The brief lists "Free + $6.99/mo Pro for AI coaching and advanced tracking" and also shows "£5.99/mo / cycle Buy for £5.99/mo." Both figures appear in the brief text from the product page, so the page presents a free tier alongside a monthly Pro option.

The brief attributes two things to Pro: AI coaching and advanced tracking. The free tier is not itemised in the brief, but the statement that Today, Tasks, Week, Trackers, Journal and AI Coach all work offline describes the overall structure. Confirm current inclusions and currency at NeuroSpark Planner before you choose.

The brief does not mention a date-limited offer, countdown or scarcity mechanism. If you are comparing tiers, focus on whether the Pro features match what you want and whether the free set covers your day-to-day planning.

Who NeuroSpark Planner suits

The product page names neurodivergent adults as the audience, with language specifically about the ADHD brain. It will be most relevant if you recognise the pattern of struggling to start or prioritise on some days, even when you know what needs doing.

It may suit you if:

• You want one place for daily tasks, weekly planning, habit trackers and short journaling.
• You benefit from visual tasks and a clear Today view that separates now from later.
• You want a coach inside the planner to help break down tasks, including when offline.
• You prefer a PWA that works offline and keeps data stored locally, with 10 locales and RTL support.

It may be less suited if you need a highly specialised methodology or a shared team workspace. The brief describes a personal planner with local-first storage and an individual coaching interaction, not a collaborative project suite.

The page does not present the planner as being for children. The language addresses adults managing their own tasks and habits. If you are a parent considering it for a younger person, you would be the one assessing whether the content is appropriate.

Where to find the current details

The brief is concise and does not include dates, reviews, ratings, download counts or testimonials. For the latest feature list, tier inclusions and pricing in your currency, the product page is the source of truth.

You can read more and choose the option that fits at NeuroSpark Planner.

If offline access and on-device coaching matter to you, check which parts of AI coaching and advanced tracking sit in Pro, and that Today, Tasks, Week, Trackers, Journal and the coach are all described as working offline.

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NeuroSpark Planner is a general productivity tool. It provides task management, habit tracking, journaling and AI-assisted planning guidance and is not a medical device. If you have questions about ADHD or other health matters, speak to a qualified professional.