Girin vs 첫걸음
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Girin
Utilize advanced AR technology to measure and record children's heights without physical charts. Track your child's growth professionally and accurately with built-in iPhone sensors.
- Advanced AR height measurement
- Digital height charts for kids
- Professional and accurate growth recording
- Uses iPhone sensors
- No physical stickers or lines needed
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Advanced AR technology without having to draw dirty lines or attach height chart stickers to the wall shows various height chart that children will like. You can measure and record heights with sensors built into your iPhone so that you can see your child's growth more professionally and accurately.
첫걸음
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우리 아이, 잘 자라고 있는 걸까? 첫걸음은 소아 발달 재활 전문의가 직접 만든 아이 발달·육아 기록 앱입니다. 우리 아이 발달 상태를 평가하고 리포트를 받아보세요! 매달 우리 아이가 달성해야할 마일스톤들도 체크해보세요. 오늘 하루 밥은 잘 먹었는지, 잠은 잘 잤는지 하루 기록도 손쉽게 기록할 수 있어요. 알러지 체크 탭에선 체크해야 할 음식과 증상을 놓치지 않도록 함께 정리했어요. '발달과 육아, 어렵지 않게 한눈에' 우리 아이 발달 육아는 첫걸음이 곁에서 도와드릴게요.
Screenshots
Verdict
The clearest difference is update cadence: 첫걸음 at every 2 weeks against Girin's every 27 months. 첫걸음 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, 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.
Girin ships an update every 27 months, 첫걸음 every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Girin | 첫걸음 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 27 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 57 MB | 90 MB |
| Age rating | 4+ | 17+ |
| Developer | yaehoon Kim | Tae Kwon Lee |
In-app purchases
Girin
No in-app purchases
첫걸음
No in-app purchases
