Comparison

Mindwtr vs Thought Spark

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mindwtr

A privacy-focused, local-first task manager that helps you organize your life using the Getting Things Done methodology. It offers zero friction capture, project organization, visual Kanban boards, and a guided weekly review process, all while keeping your data securely on your device.

Highlights
  • Zero friction task capture
  • GTD workflow integration
  • Hierarchical project organization
  • Visual Kanban boards
  • Guided weekly review
  • Offline-first functionality
Features
Read full description

Your head keeps reminding you of things at the worst times. Mindwtr gives them a safe home. Mindwtr (pronounced "mind water") is a free, open-source to-do app built on the Getting Things Done (GTD) method. Write down every task and idea the moment it appears, sort it in seconds, and see only what you can do right now. No account, no subscription, and your data stays on your device. HOW IT WORKS 1. Dump it. A task, an idea, a worry: type it or speak it, and it lands in your Inbox. 2. Sort it. A short guided pass: do it now, schedule it, hand it off, or shelve it for someday. 3. Do it. The Focus view shows only what you can act on right now, nothing else. 4. Reset weekly. A guided review catches loose ends, so the list stays trustworthy and your head stays clear. New to GTD? The idea is simple: your head is for having ideas, not for holding them. Mindwtr walks you through every step. WHY MINDWTR - Works completely offline. No account required. - Your tasks stay on your device. Sync is optional and you choose where: Dropbox, a folder you control, WebDAV, your own server, or iCloud on Apple devices. - The full GTD method built in: Inbox, Next, Waiting For, Someday/Maybe, Projects, Areas, Contexts, and reviews. - Capture from anywhere: quick add, widgets, sharing from other apps, or voice. - Plan your way: list, calendar, and kanban board views. - Reminders, repeating tasks, checklists, Markdown notes, and attachments. - Import from Todoist, TickTick, OmniFocus, and more. - Free and open source. No ads or lock-in. SIMPLE BY DEFAULT, POWERFUL WHEN YOU NEED IT Fewer fields, fewer knobs, no clutter. Advanced tools, like the kanban board, automation, and an optional AI assistant that uses your own AI account, stay out of sight until you want them. Mindwtr means "mind like water": the calm you get when nothing is rattling around in your head.

About

Thought Spark

Quickly capture fleeting thoughts through voice or text, then use AI to refine them into actionable plans. Explore your ideas further with web research and integrate them into your daily workflow with reminders and calendar events.

Highlights
  • Instant voice/text idea capture
  • AI-guided idea refinement
  • Automated web research
  • Actionable next steps
  • Reminders and calendar integration
  • On-device storage
Features
Read full description

Every good idea starts as a spark — and most of them vanish before you do anything with them. Thought Spark catches them the instant they strike. Capture in seconds. Tap once and talk, or type. Thought Spark transcribes and titles your idea automatically. Sharpen it. A short, AI-guided interview asks the right questions to turn a vague notion into something clear — tuned to how you think (founder, writer, researcher, designer, PM). Research it. Send your idea to the web: Thought Spark scans for prior art, key context, risks, and directions worth exploring, with sources. Act on it. Turn an idea into reminders, a calendar work-block, and concrete next steps — so it actually moves. Your ideas stay on your device. Capture and basic features are free; Pro unlocks unlimited refining and deep web research. Start with a 7-day free trial of Pro — unlimited refining and deep web research. Pro is an auto-renewing subscription ($7.99/month or $49.99/year). Payment is charged to your Apple ID; it renews unless cancelled at least 24 hours before the period ends; manage or cancel anytime in your Apple ID settings. Terms of Use (EULA): https://thoughtsparkapp.com/terms.html Privacy Policy: https://thoughtsparkapp.com/privacy.html

Screenshots

Mindwtr4 screens
Thought Spark4 screens

Verdict

The call

The clearest difference is in-app purchases: Mindwtr at none against Thought Spark's 2. Mindwtr also leads on update cadence (weekly vs fortnightly) and ratings volume (12 vs 3). Thought Spark's advantage is rating (5.0 vs 4.7) and review sentiment (100% vs 90%). On price, ads and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Thought Spark sells 2 in-app purchases, starting at $7.99 per month. Mindwtr asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Thought Spark holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 12 and 3 respectively. Written reviews point the same way: 90% of Mindwtr's written reviews are positive against 100% of Thought Spark's.

UpkeepUpdate frequency

Mindwtr ships an update weekly, Thought Spark fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard7 real differences · 3 level
Mindwtr versus Thought Spark: the parameters behind the verdict, then further details
ParameterMindwtrThought Spark
PriceFreeFree
Rating4.7 (12 ratings)5.0 (3 ratings) — better
Positive reviews90.0% of reviews100.0% of reviews — better
Number of ratings12 — better3
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size70 MB2 MB
Age rating4+4+
DeveloperDongda LiEdventure Design LLC

Customer experience

Mindwtr

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews10 reviews
Positive90.0%
Neutral0.0%
Negative10.0%

Thought Spark

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Mindwtr

No in-app purchases

2 purchases

Thought Spark

Subscriptions2
  • Thought Spark Pro (Monthly)7 Days trial$7.991 Month
  • Thought Spark Pro (Yearly)$49.991 Year

Questions

Is Mindwtr free?
Mindwtr is free to download, with no in-app purchases.
Is Thought Spark free?
Thought Spark is free to download, with in-app purchases available.
Which has better reviews, Mindwtr or Thought Spark?
Thought Spark is rated higher. Mindwtr averages 4.7 out of 5 from 12 ratings, while Thought Spark averages 5.0 from 3 ratings.
Do Mindwtr or Thought Spark have ads?
Neither Mindwtr nor Thought Spark shows ads.
Which is updated more often, Mindwtr or Thought Spark?
Mindwtr ships an update weekly, and Thought Spark fortnightly. Most recently, Mindwtr was updated on November 5, 2026 and Thought Spark on October 31, 2026.

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