Corelax vs Oikomi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Corelax
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24時間無人マッサージチェア店コアラックス(Corelax)の専用アプリ。
Oikomi
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■ Plan on your phone, push on your wrist. A logger for serious lifters Oikomi — meaning "the final push" — is a strength-training logger built for intermediate-to-advanced lifters who want to focus on the quality of every set. Plan routines and review history on your phone at home; at the gym, record sets from your wrist alone. Recovery-aware coaching that reads your HRV and sleep, built entirely on Apple's own frameworks with privacy by design. Stack every hard-won rep, with confidence. ■ Highlights ◇ Log at the gym from your wrist — leave the phone behind Build routines ahead of time, then run and record whole sessions from your wrist. Enter reps and weight fast with the Digital Crown — one set in 1–3 taps. A Live Activity keeps set count, elapsed time, and your rest timer always visible. ◇ Read your HRV and sleep to judge today's push — free Oikomi reads HRV, resting heart rate, and sleep from Health to show today's condition and a clear "push or hold back" call (an HRV-based deload suggestion), free of charge and computed entirely on-device — no external LLM APIs. Deeper coaching — PR prediction, per-muscle volume warnings, and long-term trend analysis — is part of Pro. ◇ 873-exercise library Covers gym, bodyweight, dumbbell, barbell, cable, and machine movements. Search by muscle, equipment, or location, and add your own custom exercises. ◇ Automatic 1RM and estimated intensity Estimates 1RM from weight × reps (Epley / Brzycki) and visualizes per-exercise personal-best history and trends. ◇ Routine management Save your go-to push / pull / leg menus as routines. Start a session in one tap with last time's values pre-filled. ◇ Two-way Health integration Completed workouts are saved to Health as HKWorkout and reflected in your activity rings. Reading HRV, sleep, resting heart rate, and body weight — and today's condition — is free; long-term trend analysis is Pro. ◇ Widgets / Smart Stack Show this week's active days, active-week streak, and latest PR on the Lock Screen, Home Screen, and your watch's Smart Stack. ◇ App Intents / Siri input "Hey Siri, log 80 kg bench press for 10 reps in Oikomi" — from starting a session to recording, all by voice. ■ Serious about privacy No third-party analytics SDKs, ad libraries, or tracking — ever. Everything runs on-device, and nothing leaves your device without your consent. iCloud sync is a Pro opt-in feature, isolated automatically by your Apple ID. See our Privacy Policy for details. ■ Free features • Core logging, unlimited history, wrist-based recording, writing to Health • HealthKit reading (HRV / resting heart rate / sleep / body weight) • Today's condition + HRV-based deload / push suggestions • 5 routines, 5 custom exercises • Live Activity / Dynamic Island ■ Pro features • Advanced AI coaching (PR prediction / per-muscle volume warnings / plateau detection) • Long-term condition trends (HRV / sleep / resting heart rate / body composition) • Advanced analytics (per-muscle volume / per-exercise trends) • Unlimited routines (5 on Free) • Unlimited custom exercises (5 on Free) • iCloud sync across your devices • CSV data export • 14-day free trial to start • ¥780 / month or ¥4,500 / year (about ¥375 / month) • Payment is charged to your Apple ID at confirmation of purchase • Auto-renews unless turned off at least 24 hours before the period ends • Manage in iOS Settings → your name → Subscriptions • Terms: https://bukamasedo.github.io/oikomi/legal/terms/ • Privacy Policy: https://bukamasedo.github.io/oikomi/legal/privacy/ ■ Supported devices iPhone (iOS 26+) / Apple Watch (watchOS 26+) ■ Medical disclaimer This app provides health and fitness information, not medical advice. Consult a physician if you have any health concerns.
Screenshots
Verdict
The clearest difference is in-app purchases: Corelax at none against Oikomi's 6. Corelax also leads on iOS requirement (15.0 vs 26.0). On price, update cadence, 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. Oikomi sells 6 in-app purchases, starting at $4.99 per month. Corelax asks for nothing beyond the download.
Corelax ships an update every 10 days, Oikomi weekly. The most recent releases landed on September 9, 2026 and September 7, 2026 respectively.
| Parameter | Corelax | Oikomi |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 83 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | DUNKIT K.K. | Shu Hirouchi |
In-app purchases
Corelax
No in-app purchases
Oikomi
- Oikomi Pro 月額14 Days trial$4.991 Month
- Oikomi Pro 年額14 Days trial$29.991 Year
- スポーツドリンク 1 本$0.99
- プロテイン 1杯$1.99
- 鶏胸肉200g$2.99
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- 焼肉チートデイ$5.99









