Maelstrom vs Doby
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Maelstrom
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Maelstrom helps you stick to your routines and habits. Create routines by breaking them down into individual tasks with a duration. When you start a routine, the app will guide you through it one task at a time with a timer. When the time is up, it will alert you to move on to the next task to make sure you complete the routine. Additional features include: - Individual task schedules (e.g. "Journal every Sunday") - Minimum time for positive habits (e.g. "Read for at least 5 minutes") If this sounds helpful, give it a try. The app is free without subscriptions, ads or tracking. It is a personal project with no commercial intention.
Doby
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[Features] -- Tasks by topic -- - Gather tasks by topic, with or without a date (moving prep, books to read) - Tap a topic on the home screen to open it and add tasks right there - Pick a topic when you create a task or use quick add -- Offline -- - Tasks, topics, routines, and notes all run with no internet - Writing and reading both work in airplane mode - No account, no sign-in. Your data stays on your device -- Tasks -- - Set a date, time, and repeat rule for anything you need to do - Sort with colors and tags, and get a reminder so nothing slips -- Map -- - See every task you pinned to a place gathered on one map - Tap the map to add a task right where you are looking - Directions hand off to the map app on your device - Searching for a place and viewing the map need an internet connection -- Routines -- - Build habits that repeat daily, weekly, or monthly - Keep your streak going -- Notes -- - Write notes and filter them by list -- Calendar -- - Open the monthly calendar from home to see the whole month - Tasks and routines are marked differently - Public holidays appear automatically, and you can add your own -- Lists -- - Group tasks into lists and pin them to home when you need them - Archive the ones you are done with, and bring them back when you need them -- More -- - Every feature is free. No subscription, no in-app purchases - Dark mode - Korean / English / Japanese / Chinese - Export your data, or erase all of it Sort out what today needs, with Doby.
Screenshots
Verdict
The clearest difference is update cadence: Doby at every 3 weeks against Maelstrom's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Maelstrom ships an update every 8 months, Doby every 3 weeks. The most recent releases landed on October 9, 2026 and October 20, 2026 respectively.
| Parameter | Maelstrom | Doby |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Every 3 weeks โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 32 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Helm | Jiwoong Lee |
In-app purchases
Maelstrom
No in-app purchases
Doby
No in-app purchases









