DeepDo vs Spark Memo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DeepDo
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## App Overview DeepDo is a powerful to-do app that lets you organize tasks and information in an unlimited tree structure. Create subtasks within tasks, and add even finer tasks within those, so you can freely structure complex content. From personal task management to project management, learning, design, and information organization, you can manage your flow of thought as a tree. DeepDo also supports AI-powered structure generation. Simply enter text or ideas, and complex content is automatically organized into a hierarchy. Created structures can be saved, shared, and exported as PDF. Use cases range from sharing procedures and expanding to-do lists to organizing knowledge and visualizing structure—for both personal and team use. ## Main Features * Add items (to-dos) * AI structure generation * Automatically convert ideas and text into a hierarchy * Support for project planning, learning content, and work procedures * Menu when tapping an item * Select: Open a page based on the selected to-do * Add list: Create a sub-to-do under the selected item * Edit: Change title / price (numeric value) / color * Save: Save the selected item and everything below it * Delete: Delete the selected item and its children * Cut / Copy: Include children; paste anywhere * Insert: Insert saved, cut, or copied items as children * Bulk insert: Paste text and auto-create one item per line * Progress split: Split a to-do with a value into children (original value is cleared) * Hide / collapse children (swipe shortcut) * Display in 3-level blocks (e.g. show levels 5–7; levels 1–4 in breadcrumbs at top) * Drag to reorder and organize items * Map mode: View the full structure; pan and pinch to zoom * Sharing mode: Online sharing via public, group, or limited access * PDF export: Save as searchable, copyable PDF * Backup to storage (folder organization supported) * Backup list: Share / overwrite save / insert / restore / delete * 47 languages (change anytime in settings) ## About Price (Numeric Values) Price is a numeric value you can set on a to-do item. Units can be changed in settings and used for workload, amounts, quantities, man-hours, and more. Examples: * yen * $ * pcs * tasks * person-days *Only leaf items can hold numeric values. ## Developer Intent This app is built for people who think structurally. It shines not only in task management but also when organizing complex information for planning, design, writing, learning, and research. We continue to develop it as an app that supports structuring your thinking itself. ## What Sets DeepDo Apart * Flexible structure management with unlimited hierarchy * Automatic hierarchy generation with AI * Flexible editing with cut / copy / insert at partial levels * Progress and workload visibility with price (numeric values) * Full-structure visualization in map view * PDF export with search and copy support * Online sharing for personal and team use ## Future Updates * Ongoing improvements to AI features * Expanded sharing capabilities * Continuous iOS improvements * More flexible, useful features based on user feedback ## Terms of Use and Privacy Policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ DeepDo Terms of Use: https://deepdo.blue/en/terms Privacy Policy: https://deepdo.blue/en/privacy
Spark Memo
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Spark Memo is for the thought you will lose if you stop to file it. NO TITLES, NO FOLDERS, NOTHING TO ORGANIZE Open the app and the cursor is already waiting. Type, save, done. There is nothing to name, nothing to sort into, and nothing to tidy up later. YOU KNOW IT SAVED BECAUSE IT EXPLODES Every save detonates on screen. It is deliberately, uselessly spectacular, and it means you never have to check whether the note actually went in. FIND IT AGAIN LATER Search digs through everything you have written. That is the whole filing system, and it is enough. Free, no ads, no in-app purchases, no account required. Your notes stay on your device.
Screenshots
Verdict
The clearest difference is in-app purchases: Spark Memo at none against DeepDo's 5. Spark Memo also leads on ads (none vs shown). DeepDo's advantage is update cadence (weekly vs every 3 months) and iOS requirement (15.0 vs 18.0). On price and device support 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
Both are free to download. DeepDo sells 5 in-app purchases, starting at $2.99 per month. Spark Memo asks for nothing beyond the download.
DeepDo ships an update weekly, Spark Memo every 3 months. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.
| Parameter | DeepDo | Spark Memo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 34 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | HIROSHI KAWASHIMA | YOSHIKI ASAMI |
In-app purchases
DeepDo
- DeepDo Premium$2.991 Month
- DeepDo Premium Description$2.99
- 3000 AI Points$2.99
- 35000 AI Points$29.99
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- 75000 AI Points$59.99
Spark Memo
No in-app purchases









