Prompt Planter vs Plinth Priority Matrix
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Prompt Planter
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Write, test, and grow your prompts. Track versions of your AI prompts with diff view, version restore, and {{template}} variables - now synced across iPhone, iPad, and Mac. Prompt Planter is a calm, private home for the AI prompts you actually want to keep. If you reuse the same prompts across different AI assistants, you know the pain: the good version is buried somewhere in a chat history, and you end up rewriting it from scratch. Prompt Planter lets you save your best prompts, improve them over time, and grab the right one in seconds. THE SAME LIBRARY ON EVERY DEVICE - Syncs automatically over iCloud. Start a draft on your iPhone and finish it on your iPad or Mac. - Nothing to set up. If you are signed in to iCloud, everything is already there when you open the app. - You can check the sync status any time in Settings. GROW YOUR PROMPTS - Keep prompts, project instructions, skills, CLAUDE.md files, and system prompts in one library. - Every prompt has a full version history. Save a new version whenever you tweak it, with a short note on what changed. - See exactly what changed between versions, highlighted with + and - marks. - Restore any past version at any time. Restoring adds a new revision, so your history is never lost. - Rate each version and record how it actually performed, so you always know which one works best. ONE PROMPT, TUNED FOR EVERY AI - Create variants of the same prompt for different models. - Tag prompts by AI and by purpose so you can find exactly what you need. Give AI tags a color to tell them apart at a glance. - Duplicate a whole prompt, version history included, when you want to take it in a different direction. CAPTURE IDEAS FAST - Jot a quick draft, then save it to your library as a new prompt, a new version, or a new variant. - One-tap copy to the clipboard, ready to paste into any chat. - Write {{name}} in a prompt body and a fill-in form appears when you copy it or send it to Drafts. FIND WHAT YOU ARE LOOKING FOR - Pin your go-to prompts to the top. - Mark favorites and filter by kind, AI, or purpose. - Search covers change notes and result notes too, not just the prompt body, so you can find that one insight you wrote down. - Your sort order and filters are remembered between launches. YOUR DATA STAYS YOURS - No account, no sign-in, no ads, no tracking. - Sync uses your own iCloud private database. The developer cannot see its contents. - Not using iCloud? Everything stays on your device and every feature still works. - Export and import your whole library as a JSON file for backup or moving between devices. FULLY BILINGUAL - Use the app in English or Japanese, switchable anytime. Prompt Planter is designed to be quiet, fast, and out of your way, so your prompts can grow alongside your work.
Plinth Priority Matrix
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Too many tasks, not enough clarity? Plinth cuts through the noise by sorting every item into the four Eisenhower quadrants ā so you always know exactly what deserves your attention right now. ā KEY FEATURES ā ⢠2x2 Matrix View ā see all four quadrants (Do, Schedule, Delegate, Delete) at a glance as a color-coded grid, with up to five tasks previewed per quadrant. ⢠Quick-Add from Any Quadrant ā tap the Add button inside any quadrant card to create a task already sorted to the right place. ⢠Task Notes ā attach optional notes to any task to capture context alongside the title. ⢠Completion Tracking ā check off tasks with a single tap; completed items are struck through and moved out of your focus. ⢠Today View ā surfaces your top five Do-quadrant tasks (urgent and important) so you can open the app and start working immediately. ⢠Full Task List ā browse every task across all quadrants in one flat list, filter by quadrant, and swipe to delete anything you no longer need. ⢠Priority Ordering ā tasks within each quadrant are sorted by the order you added them, keeping the most important items at the top. ⢠Fully Offline ā all data is stored locally on your device using UserDefaults. No account, no ads, no cloud sync required. Plinth is built for anyone who needs a fast, structured way to decide what to work on ā whether you are managing a team, building a product, studying, or navigating daily life. Open the matrix, place your tasks, and get back to doing the work that matters. ā Plinth Priority Matrix PREMIUM ā Premium unlocks the full Plinth experience: unlimited tasks across all four quadrants, drag-and-drop reprioritization, the Today view, and a completely ad-free, fully private workspace ā so nothing stands between you and your priorities. Subscription options: ⢠Weekly ā $9.99 / week ⢠Yearly ā $49.99 / year (includes a 3-day free trial) Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the period. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pnkl26.web.app/privacy-policy
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Verdict
The clearest difference is in-app purchases: Prompt Planter at none against Plinth Priority Matrix's 2. Plinth Priority Matrix's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Plinth Priority Matrix sells 2 in-app purchases, starting at $9.99 per 7 days. Prompt Planter asks for nothing beyond the download.
Prompt Planter ships an update monthly, Plinth Priority Matrix fortnightly. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.
| Parameter | Prompt Planter | Plinth Priority Matrix |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Fortnightly ā better |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad ā better | iPhone |
| Requires iOS | 26.0 | 17.0 ā better |
| Further details ā not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Yusuke Nakashima | Linh Phan Nhat Khanh |
In-app purchases
Prompt Planter
No in-app purchases
Plinth Priority Matrix
- Plinth Priority Matrix Weekly$9.997 Days
- Plinth Priority Matrix Yearly3 Days trial$49.991 Year
Questions
Is Prompt Planter free?
Is Plinth Priority Matrix free?
Do Prompt Planter or Plinth Priority Matrix have ads?
Which is updated more often, Prompt Planter or Plinth Priority Matrix?
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