Matrix vs TriDo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Matrix
This straightforward task manager helps you organize your to-do list without overwhelming complexity. See what needs to be done and when it's due at a glance, with options for notes and reminders. Swipe to complete tasks or access options, and easily restore completed items.
- Easy-to-use interface
- Reminder notifications
- Home screen quick actions
- Today view widget
- Intuitive design
- Task completion history
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-- App Store Exclusive -- Matrix is a simple and easy task manager that you will actually use. Quit getting overwhelmed with all the bells and whistles that other to-do list applications offer. See what needs to be done and when it's due, all in a single glimpse. Create tasks to be as simple or as complex as you wish. With the optional notes and reminder sections you can be sure that all of your needs are met. Swipe left on any task to view its options, or swipe all the way to quickly complete it. We also keep all of your completed tasks so that you can quickly restore them as needed. Matrix was designed to keep you productive, without taking up too much of your time. Download today for free and experience how easy it is to be organized and stay on track. -- FEATURES -- • Easy to use • Reminder notifications • Home screen quick actions • Today view widget • Intuitive interface • Optimized for all iOS devices (iPhones) • Inspired by the Eisenhower Matrix Add 5 tasks for free, then purchase Pro for unlimited productivity! Only $0.99! -- Please note that this app requires iOS 8.2 or above --
TriDo
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Your brain holds 3 things at once. Not 10. Not 50. Three. TriDo is the anti-to-do list. While every other productivity app lets you add unlimited tasks, TriDo deliberately limits you to exactly 3 per day. That constraint is the product. WHY ONLY 3 TASKS? Research from cognitive scientists like Nelson Cowan shows your working memory holds just 3 to 4 items. Every task beyond that competes for mental space, creating anxiety — not progress. The Zeigarnik Effect proves that unfinished tasks haunt your mind. A 10-item to-do list guarantees open loops at bedtime. 3 tasks can actually be finished. Every day. Productivity legends agree. Warren Buffett says "successful people say no to almost everything." James Clear writes that you fall to the level of your systems. Tim Ferriss limits himself to 2 mission-critical items. Brian Tracy's Law of Three has sold 3 million copies. TriDo turns their wisdom into a daily habit. HOW IT WORKS 1. Open TriDo. See 3 empty slots. 2. Type your 3 most important tasks. 3. Swipe right or tap to complete each one. 4. Finish all 3. Build your streak. 5. Share your wins with a beautiful card. That's it. No folders. No tags. No priorities. No integrations. Just 3 things that matter today. FEATURES - 3 daily task slots — no more, by design - Swipe-to-complete with satisfying haptic feedback - Streak tracking with milestone celebrations - 12-month heat map calendar — see your consistency - Shareable completion cards with daily quotes - Morning reminder notifications (streak-aware) - Daily motivational quotes from Buffett, Jobs, Bruce Lee, and more - Light, dark, and system themes - Configurable daily reset time - Task history — look back at what you accomplished - Data export in plain text - 100% offline — all data stays on your device - Zero data collection, zero tracking, zero accounts PRIVACY TriDo stores everything locally on your device. No accounts. No cloud. No analytics. No tracking. Your tasks are yours alone. THE PHILOSOPHY Most productivity apps fail because they mirror the problem — infinite tasks, infinite overwhelm. TriDo mirrors the solution: radical constraint. When you can only pick 3, you're forced to choose what truly matters. 3 tasks. Every day. That's all it takes.
Screenshots
Verdict
The clearest difference is in-app purchases: TriDo at none against Matrix's 1. Matrix's advantage is iOS requirement (8.2 vs 16.0). On price, ads 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. Matrix sells 1 one-off in-app purchase. TriDo asks for nothing beyond the download.
| Parameter | Matrix | TriDo |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 8.2 — better | 16.0 |
| Further details — not scored | ||
| Size | 18 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Matt Butler | Krishnabhai Dilipbhai Chheta |
In-app purchases
Matrix
- Pro Version$0.99
TriDo
No in-app purchases









