Baby's day vs CYRUS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Baby's day
Track your infant's daily activities including feeding, sleep, and diaper changes. Monitor growth with height and weight charts, and receive helpful notifications. The app supports logging various care events like baths and medicine.
- Feeding tracking
- Sleep monitoring
- Diaper logging
- Growth charts (height/weight)
- Notifications
- Care event logging
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Able to check and control of my baby's breast-feeding, baby food, sleeping, urine and feces at once! Support statistics and graph. Support Height, Weight. Support Notification. Support Graph. Support Bath, Medicine, Snack, Temperature Very intuitive and convenient to use.
CYRUS
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사이러스 앱은 건강과 환경 보호를 동시에 실현하는 혁신적인 플랫폼입니다. 사이러스 바이크와 연동하여 운동 중 전기를 발전시키고, 이를 실질적인 보상으로 전환할 수 있습니다. 주요 기능: 1. 운동 데이터 추적: 운동량과 전기 생산 데이터를 실시간으로 확인하세요. 2. 보상 시스템: 운동을 통해 포인트를 적립하고 다양한 상품 및 서비스에 활용하세요. 운동이 더 이상 단순한 건강 관리에 머물지 않습니다. 사이러스 앱을 통해 운동을 경제적 가치와 환경 보호로 연결해 보세요!
Screenshots
Verdict
The clearest difference is device support: CYRUS at 3 against Baby's day's 1. CYRUS also leads on iOS requirement (15.5 vs 18.0). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Baby's day ships an update every 4 months, CYRUS every 6 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | Baby's day | CYRUS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) — better | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 4 months — better | Every 6 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.5 — better |
| Further details — not scored | ||
| Size | 14 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | jeongil Park | 서한이노텍에너기브 |
In-app purchases
Baby's day
No in-app purchases
CYRUS
No in-app purchases






