Three Todo vs Kai To Do
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Three Todo
This task management app focuses on simplicity by presenting only three tasks at a time. It offers three actions: Done, Defer, or Drop, to help users manage their to-do list without added stress or complexity.
- Focus on 3 tasks at a time
- Stress-free task management
- Action tasks: Done, Defer, or Drop
- Minimalist and non-intrusive design
- Prioritizes tasks based on user actions
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THREE: Made for procrastinators by procrastinators. The Refreshingly Simple Stress Free Todo List. THREE is designed to be a minimal task assistant that is non intrusive. Traditional todo lists add stress and complexity by making YOU track, categorize, and prioritize tasks. They're digital task masters that nag and confuse you until you give up in frustration. They punish you with incessant notifications when you're overdue on a task (which you would probably ignore anyways). THREE changes the way you manage tasks. Tasks go in. THREE will present you with three and only three tasks at any given time. As you deal with them, we'll keep track and tell you how you're doing. There are only three ways to action a task - Done, Defer, or Drop. When you are done with a task, it falls off your list. If you make a mistake - don't sweat it. Next time the task you entered erroneously appears in the list , just Drop it - we won't hold it against you. If you're looking at a task that you just don't want to deal with, Defer it. This tells us that a particular task is unpleasant and it gets prioritized lower. THREE isn't designed to keep you on top of every facet of your life. No meaningless trophies or achievements. Rather, THREE will slowly but surely change the course of your life and help point you in the right direction by keeping track of the stuff that matters to you and presenting them to you in a manageable fashion. THREE: Made for procrastinators by procrastinators.
Kai To Do
This task management app makes completing your to-dos a delightful experience with a vibrant interface and celebratory confetti animations. All your data is stored securely on your device, ensuring complete privacy.
- Joyful task completion animations
- Colorful and fun interface
- Local data storage
- Privacy-focused design
- Celebratory confetti parties
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Kai Notes was designed to spark joy when marking a task complete. This app is designed with a colorful and fun palette where each task you complete you are treated to a confetti party! No user data is ever collected. All data is stored locally on your device.
Screenshots
Verdict
The clearest difference is price: Kai To Do at Free against Three Todo's $0.99. Kai To Do also leads on update cadence (every 5 months vs every 12 months) and iOS requirement (13.0 vs 17.6). On rating, review sentiment, ratings volume and ads 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
Kai To Do is free to download; Three Todo costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for Three Todo against 5.0 for Kai To Do. Both are backed by a comparable volume of ratings — 16 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Three Todo ships an update every 12 months, Kai To Do every 5 months. The most recent releases landed on October 2, 2026 and October 17, 2026 respectively.
| Parameter | Three Todo | Kai To Do |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.9 (16 ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 16 — better | 7 |
| Update frequency | Every 12 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 18 MB |
| Age rating | 9+ | 4+ |
| Developer | Jeffrey Lai | MEDUSA LABS L.L.C. |
Customer experience
Three Todo
Kai To Do
In-app purchases
Three Todo
No in-app purchases
Kai To Do
No in-app purchases
