エアミル2W vs Chime Machine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
エアミル2W
Monitor environmental conditions with real-time data and historical graphs. This app visualizes temperature, humidity, and CO2 levels from a compatible Wi-Fi sensor.
- Real-time data display
- Historical graph visualization
- Temperature monitoring
- Humidity monitoring
- CO2 concentration tracking
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This is an application that displays the measured values and graphs of temperature, humidity, and CO2 concentration measured by RATOC System's Wi-Fi CO2 sensor RS-WFCO2.
Chime Machine
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A simple app that rings a chime at the same time each day. And yet, within that sound lies a gentle reminder: time is passing. That sound—sometimes bright, sometimes soft—reaches you in the flow of your day. No need to check the clock; it becomes a quiet pause, inviting you to notice the moment and breathe. Core features (free): ・Hear a chime at your chosen daily time ・Automatic playback via notifications, even without opening the app ・No ads, clean and minimal design Chime Machine Pro (paid subscription) unlocks more possibilities: ・Set multiple custom chimes at any time you like ・Choose from a variety of traditional bells and gentle tones ・Shape your own rhythm to match the way you live Time always flows quietly, whether we notice it or not. Each chime becomes a small anchor in the day. Chime Machine helps you treasure those moments— so your time feels more your own. How it fits into your day ・A gentle chime to start each morning ・A daily cue to take a mindful breath at the same time ・A signal to wrap up work or study sessions ・A rhythm for afternoon tea or coffee time ・A reminder to step outside for an evening walk ・A bedtime chime to mark the end of the day The same sound, at the same time, becomes a quiet rhythm that grounds your day. ----- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://chime-machine.moonxseed.com/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: エアミル2W at none against Chime Machine's 2. エアミル2W also leads on iOS requirement (15.0 vs 18.0). Chime Machine's advantage is update cadence (every 10 days vs every 5 weeks). On price, ads and device support 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. Chime Machine sells 2 in-app purchases, starting at $2.99 per month. エアミル2W asks for nothing beyond the download.
エアミル2W ships an update every 5 weeks, Chime Machine every 10 days. The most recent releases landed on July 28, 2026 and September 22, 2026 respectively.
| Parameter | エアミル2W | Chime Machine |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| Update frequency | Every 5 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 20 MB | 91 MB |
| Age rating | 4+ | 4+ |
| Developer | RATOC Systems, Inc. | moonxseed |
In-app purchases
エアミル2W
No in-app purchases
Chime Machine
- Monthly Pro subscription14 Days trial$2.991 Month
- Yearly Pro subscription14 Days trial$29.991 Year
