MiKuHa vs Opus Wellness
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MiKuHa
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ミズノ株式会社が販売する脈拍計デバイス「MiKuHa」に接続できるアプリケーションです。 MiKuHaアプリは高精度で計測した脈拍数などをリアルタイムに表示します。 脈拍数や加速度、自律神経の指標となるIBIなどの計測が簡便にできます。 各項目のデータをCSVで保存することができます。 【アプリの主な機能】 [計測項目] ・脈拍[BPM] ・加速度[G](サンプリングレート1~150Hz) ・IBI[s](自律神経指標) ※脈拍計デバイス「MiKuHa」のファームウェアバージョンが「1.1.0」の場合、IBIと加速度を計測することができません。今後配信予定のファームウェアにアップデートすることにより、IBIと加速度を計測できるようになります。 [データ出力] 計測したデータをテキストベースで出力可能です。 エクセルなどの表計算ソフトウェアを用いて、より詳細な分析にご活用 ください。 【その他】 脈拍計デバイス「MiKuHa」についての詳細な情報はこちらのページをご覧ください。 https://www.mizuno.jp/facility/facility-equipment/mikuha.aspx 「ご購入」や「ご意見・ご要望」につきましては、こちらの専用フォームより、必要事項をご記入のうえお問い合わせください。 https://www.mizuno.jp/facility/facilities_service/inquiry/form.aspx
Opus Wellness
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Every morning. 10 seconds. Three answers. What mode am I in. Why. What to do about it. Just your iPhone. No ring. No band. No wearable. — YOUR FACE AFTER LAST NIGHT Open your camera. 10 seconds. OPUS scans your skin across five layers — hydration, smoothness, tone evenness, radiance, and pore clarity — and scores each one. But the number isn't the point. The connection is. "After 5.5 hours of sleep, your skin score dropped 12 points." "Three days above 2L of water — your skin is responding." "HRV up, skin down. Something's off." Your face changes every morning. OPUS reads why. — AI THAT READS YOU — NOT A CATEGORY Every morning, one sentence no one else gets. Not a template. Not a horoscope. Your numbers, read by AI. "5.8 hours of sleep — your skin will show it by noon." "HRV dropped after Wednesday's alcohol. Recovery: 2 days." "Three weeks of data. You sleep worse on Sundays. Every single one." "3 coffees yesterday. Sleep took the hit. Skin followed." It doesn't motivate. It doesn't coach. It just says what it sees. — BETTER WITH APPLE WATCH OPUS works with just your iPhone. With Apple Watch, it gets sharper — HRV, sleep stages, SpO2, resting heart rate, all pulled automatically. More data in. Smarter insight out. No Watch? No problem. OPUS still reads your skin, sleep, activity, and stress. Own one? OPUS becomes the intelligence layer your Watch never had. — YOUR BASELINE Every body is different. OPUS learns your normal in 14 days, then flags what shifts. No population averages. No generic benchmarks. Just you. 22 metric pairs. Correlations only your data reveals. Sleep ↔ Skin. HRV ↔ Stress. Activity ↔ Recovery. A personal map of how your body actually connects. — DAILY MODE Restore — Your body needs recovery. Take it easy. Steady — A balanced day. Stay in your rhythm. Thrive — Your peak day. That thing you've been postponing? Today. — KNOW TOMORROW. TODAY. OPUS predicts your next-day score based on your patterns. Not a guess — a projection from your own data, updated every morning. Prepare before your body even gets there. — PRO — FIRST 14 DAYS FREE Your daily mode and score are always free. For those who want the full picture: · AI-powered daily insight that learns you better every day. · Full correlation map between skin, sleep, and stress. · 30-day body trend graph — watch yourself change. · Next-day prediction — know tomorrow before it arrives. — Privacy first. Health data stays on your iPhone. Skin photos are encrypted in transit and deleted after analysis — never stored, never shared. Available in 7 languages: English · Español · Deutsch · Français · Türkçe · 日本語 · 한국어 Tomorrow morning. 10 seconds. You'll know. OPUS is a wellness app. It does not provide medical diagnosis. Always consult a healthcare professional for health decisions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://opus-bio.github.io/opus-privacy-/
Screenshots
Verdict
The clearest difference is in-app purchases: MiKuHa at none against Opus Wellness's 2. MiKuHa also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Opus Wellness's advantage is update cadence (every 3 days vs every 2 months). On price and ads 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. Opus Wellness sells 2 in-app purchases, starting at $9.99 per month. MiKuHa asks for nothing beyond the download.
MiKuHa ships an update every 2 months, Opus Wellness every 3 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.
| Parameter | MiKuHa | Opus Wellness |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 9 MB |
| Age rating | 4+ | 12+ |
| Developer | MIZUNO CORPORATION | Cagri Deliler |
In-app purchases
MiKuHa
No in-app purchases
Opus Wellness
- OPUS Pro — Monthly14 Days trial$9.991 Month
- OPUS Pro Yearly14 Days trial$59.991 Year









