Task Master vs Decima
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Task Master
Organize your day with a to-do list and integrated timer. Input your deadline, tasks, and estimated times to track your progress and identify free time. Archive tasks for later use and monitor your schedule with convenient home and lock screen widgets.
- Deadline-based task scheduling
- Task progress tracking
- Time estimation for tasks
- Task archiving
- Home and Lock Screen widgets
- Free time calculation
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Task Master combines a to-do list and a timer. First, input the time when you want all of your tasks done by. Next, input all of your tasks and how long you think each will take. Then, Task Master uses the current time to calculate how far ahead or behind you are. You can also save tasks for another day by archiving them. Use the Home Screen and Lock Screen widgets to keep track of your tasks without having to open the app! This app is great for figuring out how much free time you have and helps you schedule your day so you can get everything done.
Decima
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The application you have before you is but a small attempt at working with time. Since it's a precious commodity all we can do is spend it wisely. That's why I've decided to spend a bit of my time and create Decima (named after Roman Parca, the female personification of destiny) so that you don't have to ;) So what you can do with Decima? In the current version 1.1 (Joséphine) you can: • create multiple timers • set multiple alerts per timer to track time expenditure • use it on both: your iPhone and Apple Watch (iPhone application is necessary) • start/stop timers on demand from your iPhone/iPad or Apple Watch • organize your time in sets • see total/partial time spent for a particular timer • automatically synchronise data between your iPhone and your Apple Watch (timer started on your phone can be paused on your Apple Watch and vice-versa) Have fun. Catch me at krzyspmac@twitter or contact (at) krzysp.net
Screenshots
Verdict
The clearest difference is in-app purchases: Task Master at none against Decima's 1. Decima's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. Decima sells 1 one-off in-app purchase. Task Master asks for nothing beyond the download.
Task Master ships an update monthly, Decima every 2 months. The most recent releases landed on October 8, 2026 and September 25, 2026 respectively.
| Parameter | Task Master | Decima |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | — |
| Positive reviews | 72.7% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 21 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Nolan Mathews | Krzysztof Pawlowski |
In-app purchases
Task Master
No in-app purchases
Decima
- The Manipulator$0.99









