Simple Sinus Zazen Timer vs Core1
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Sinus Zazen Timer
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This timer gives you the ability to set up your zazen-time and a preparation-time before. The signals are generated by a simple sinus-wave. So, you get a real digital tone as a signal not a sample of a singing bowl or something else. Take this signal to act, to meditate or to open and close your sitting by tapping your own singing-bowl. The signals and times may be varied to your needs. The App may run in background or locked device, so the energy consumption is very low.
Core1
This app guides users to build a single habit at a time, visualizing progress as a growing tree. Users can name their tree, set reminders, and define personal rewards upon completion, fostering a sense of accomplishment and encouraging consistency.
- Focus on one habit at a time
- Grow a tree to visualize consistency
- Name your tree
- Set daily reminders
- Define personal rewards
- Build a forest of completed habits
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Focus on one habit. Just one. Core 1 helps you build one habit at a time. Plant a seed, watch it grow into a tree, and earn your reward when you're done. Features: - One habit at a time — no overwhelm - Grow a tree as you build consistency - Name your tree after who you want to become - Set daily reminders - Set a personal reward to celebrate your success - Build a forest of completed habits Start small. Stay steady. Watch it grow.
Screenshots
Verdict
The clearest difference is price: Core1 at Free against Simple Sinus Zazen Timer's $0.99. Core1 also leads on update cadence (every 3 days vs every 11 months). On ads, in-app purchases, 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
Core1 is free to download; Simple Sinus Zazen Timer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Simple Sinus Zazen Timer ships an update every 11 months, Core1 every 3 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | Simple Sinus Zazen Timer | Core1 |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 11 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 22 MB |
| Age rating | 4+ | 12+ |
| Developer | Dirk Scheidt | Heather Kim |
In-app purchases
Simple Sinus Zazen Timer
No in-app purchases
Core1
No in-app purchases
Questions
Is Simple Sinus Zazen Timer free?
Is Core1 free?
Do Simple Sinus Zazen Timer or Core1 have ads?
Which is updated more often, Simple Sinus Zazen Timer or Core1?
Other comparisons
