CalmCatch vs One Thing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalmCatch
This app helps manage overwhelming thoughts and tasks with a simple capture-first approach. It transforms scattered ideas into actionable tasks, scheduled events, and organized notes, making it easier to manage ADHD-style planning.
- Brain dump for messy thoughts
- Task overload management
- Capture first, organize later workflow
- Separates thoughts into tasks, events, notes
- ADHD-style planning support
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CalmCatch is a focus-friendly brain dump app for messy thoughts, task overload, and ADHD-style planning. When your mind feels overloaded, traditional todo apps can feel like one more thing to organize. CalmCatch is designed around a simpler workflow: capture first, organize later. Just write down what is on your mind in one sentence or paragraph. CalmCatch helps separate it into clear tasks, scheduled events, and saved notes, so you can quickly turn scattered thoughts into something easier to act on. Terms of Use: https://destinyi.com/terms/ Privacy Policy: https://destinyi.com/privacy/
One Thing
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One Thing is a deliberately tiny task app for anyone who freezes in front of a long to-do list — especially ADHD brains. Instead of a wall of overdue items, it shows you exactly ONE thing to do right now, with a single big "Done" button. That's it. Come back after two minutes or two hundred days, and the screen looks the same. No streaks to break. No red badges. No shame. WHY ONE THING IS DIFFERENT • One task at a time — Your whole list is real, but you only ever see the next thing. Less overwhelm, more starting. • Break it down — When the one thing still feels too big to begin, tap "Break it down" and split it into tiny steps. The first small step becomes your new "right now." Momentum, not pressure. • Zero shame by design — No streaks, no penalties, no guilt-red badges. Miss a day or a month; nothing breaks. Pick up whenever you're ready. • Gentle reminders — Optional, fully under your control, with a soft chime instead of a jarring alarm. They never fire when your list is clear — the app won't nag you about nothing. • A calm widget — See your one thing on the Home Screen or Lock Screen, and check it off without even opening the app. • A little celebration — Finishing feels good. A quiet, rotating celebration marks each "Done." PRIVATE BY DESIGN One Thing collects no data — none. No account, no tracking, no analytics, no servers. Everything you write stays on your device. Privacy isn't a feature here; it's the foundation. Do the one thing. Breathe. That's enough.
Screenshots
Verdict
The clearest difference is in-app purchases: One Thing at none against CalmCatch's 2. On price, ads, device support 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. CalmCatch sells 2 in-app purchases, starting at $7.99 per month. One Thing asks for nothing beyond the download.
| Parameter | CalmCatch | One Thing |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 敏 刘 | 斌 华 |
In-app purchases
CalmCatch
- Calm Catch Pro Month$7.991 Month
- Calm Catch Pro Year$49.991 Year
One Thing
No in-app purchases









