Comparison

ninaru vs melmo(メルモ)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ninaru

Track your pregnancy progress with daily updates, articles, and illustrations. Monitor baby's growth, record kicks and contractions, and prepare for childbirth with helpful checklists and schedules. Enjoy a supportive resource for a peaceful maternity journey.

Highlights
  • Daily pregnancy and baby information
  • Baby growth illustrations
  • Kick and contraction counter
  • Maternal supplies checklist
  • Pregnancy schedule
  • Articles on pregnancy topics
  • Searchable information database
Features
Read full description

◆You will receive daily information about your pregnancy and baby based on the number of days of your pregnancy. ◆During pregnancy, you can feel the growth of the baby in your belly with messages and illustrations. ◆You will enjoy your maternity life with peace of mind and resolve questions and concerns about pregnancy. For your partner, we recommend the app "Papa ninaru," which is specially designed for dads. It helps dads understand pregnancy, childbirth and unborn babies. "Ninaru" and "Papa ninaru" will make your pregnant life fun and exciting! All functions of the apps are free of charge! 【FEATURES】 ◆Counter for the number of days and weeks of pregnancy When you open the app, you can see how many days until your due date at a glance. You can set the counter from 0 weeks and 0 days, which is your last menstrual period. ◆Daily Messages You will receive a message about your pregnancy and baby every day. All messages are supervised by obstetricians and gynecologists. ◆New Articles according to the number of days of pregnancy Morning sickness, weight control, fetal movement, prenatal care, naming, labor, childbirth, and more... You'll find articles in the "New Articles" section that answer all your questions and concerns about pregnancy. ◆Baby Kick Counter and Contraction Counter When you start to feel a fetal movement, use a "Baby Kick Counter." Also, when you start having contractions, you can measure the interval between contractions by using a "Contraction Counter." You'll be able to see your contraction history. ◆Maternal Supplies List There are a lot of things to prepare for during pregnancy and childbirth. You can check the "Maternal Supplies List" and know what you need to buy and when. ◆Pregnancy Schedule The "Pregnancy Schedule" lets you see what you need to do and when, during pregnancy. ◆Cute illustrations of babies The baby illustrations change every day, so you can see and feel the growth of your unborn baby! ◆Stories of other pregnant women's experiences You can read the experiences of others according to the number of weeks. There is a lot of information on morning sickness, fetal movement, recommended pregnancy and childcare goods, etc. ◆Search function You can search for information about pregnancy, childbirth and babies from over 3,500 articles. ◆All for free! 【REVIEWS】 ・"When I had bad morning sickness, the daily messages of the app cheered me up!" ・"I used to watch ninaru with my husband every day, and it seemed to make him feel like a father from the time I was pregnant." ・"It is very easy to read and use, and I look forward to opening it every day!" ・"This was my first pregnancy, and I was worried about everything, but there was a wealth of information that was easy to understand, and I was able to face the birth with peace of mind." 【FROM THE STAFF】 Pregnancy and childbirth are very precious experiences for most of us. We hope that you enjoy this special period of pregnancy with your newborn baby. Especially for those who are experiencing pregnancy and childbirth for the first time, there are so many things you don't know. "Can't we support pregnant women with more accurate and appropriate information?" With this in mind, we created "ninaru" and "Papa ninaru." We will provide you with the information and articles every day during your pregnancy. We hope that this app will be useful to you in your pregnant life. 【CONTACT INFORMATION】 If you are unable to start up the app, please contact us at the following email address: ninaru@eversense.co.jp If you are able to start up the app, please contact us through the Settings in the app. "Ninaru" was ranked number one in the AppStore Medical Ranking on August 13, 2018! One in two mothers who gave birth for the first time in 2017 used "ninaru." (Calculated from the results of the ninaru user survey and the "Demographic Statistics" released by the Ministry of Health, Labor and Welfare (as of July 2018))

About

melmo(メルモ)

This app simplifies healthcare by allowing users to book appointments, send prescriptions, and manage medications all in one place. It offers online consultations and prescription delivery, making medical care more accessible. Users can also manage family medication history and set reminders.

Highlights
  • 24/7 appointment booking
  • Automatic payment processing
  • Pre-send prescriptions
  • Digital medication record
  • Online consultations
  • Prescription delivery
  • Medication reminders
Features
Read full description

通院をもっと楽に、医療をもっと身近に。 melmo(メルモ)は、予約や処方箋の事前送信、お薬の配達、お薬手帳管理までアプリひとつで完結できます。 予約可能な病院・診療所は3,300件以上、薬局は17,000件以上 (2025年8月時点の集計) ※ 2025年11月からCLINICS(クリニクス)からmelmo(メルモ)に名称を変更しました。 【melmo(メルモ)の特徴】 ■ アプリで24時間、簡単予約 いつでもどこでも病院・診療所、薬局、歯科診療所への予約ができます。 急な受診も定期通院もスムーズで安心。 ■ 自動決済で会計を待たずに帰宅 アプリにクレジットカードを登録しておくと 診察後に自動決済されるので、会計を待たずにそのまま帰れます。 ■ 処方箋の事前送信で薬局の待ち時間短縮 処方箋を事前送信しておくと、薬局で待ち時間なく薬を受け取れます。 ■ スマホがお薬手帳に スマホでいつでもすぐにお薬の情報が確認できます。 ご家族のお薬情報もまとめて管理できて、薬局へ開示することもできます。 ■ オンライン診療・服薬指導に対応 いつもの先生の診察を通院せずに、自宅や外出先で受けられます。 処方薬は自宅への配達が最短当日で可能なので、忙しい時や体調が悪い時でも受診しやすいです。 ※ オンライン診療は、原則として事前に対面診療で医師の許可が必要です。 ※ 症状や病気によっては利用できない場合があります。特に初診からの利用では、医師の判断により通院や他医療機関での直接受診を求められることがあります。 ※ ご利用前には、必ず医師に相談してください。 【こんな方におすすめ】 ● かかりつけの医療機関の診察予約をすぐに取りたい ● 時間に縛られずに、24時間いつでもスマホから受診予約したい ● 定期通院を忘れずに予約管理したい ● 予約からお薬の受け取りまで簡単に行いたい ● お仕事の合間に時間をかけずに通院したい ● 子どもが小さく、病院や薬局で待ちたくない ● 受付や会計の待ち時間を短縮したい ● 自動決済で診察後に会計を待たずにそのまま帰宅したい ● 忙しい時や、体調が悪い時にオンラインで受診したい ● 診察からお薬の受け取りまで自宅で行いたい ● お薬は自宅に配達してほしい ● 薬局と連携がとれるお薬手帳を使いたい ● 服用アラーム機能でお薬の飲み忘れを防ぎたい ● 受け取った処方箋を薬局に事前送信して、受け取り待ち時間を短縮したい ● 花粉症外来など、手軽に治療を始めたい 【ご利用にあたって】 ■ アプリ利用料 ダウンロード・利用ともに無料 ■ 決済方法 予約や診察の利用には、以下のクレジットカードが必要です VISA / Mastercard / American Express / JCB / Diners Club / Discover ■ 診察費・予約料 通常の来院診療同様、診察費が掛かります。医療機関によっては予約料が発生することがあります ■ 対応エリア 日本国内在住の方のみ利用可能(※海外在住の方はご利用いただけません) 【お問い合わせ先】 使い方や不具合などは、以下いずれかのmelmo患者相談窓口までお問い合わせください ● お問い合わせフォーム:https://www.melmo-support.com/hc/ja/requests/new ● メール:melmo-support@medley.jp ※ medley.jpからのメールが受信できるよう、迷惑メール設定のご確認をお願いいたします

Screenshots

ninaru4 screens
melmo(メルモ)4 screens

Verdict

The call

The clearest difference is review sentiment: ninaru at 85% against melmo(メルモ)'s 14%. ninaru also leads on rating (4.9 vs 4.4) and ratings volume (520 vs 27). melmo(メルモ)'s advantage is ads (none vs shown) and update cadence (weekly vs every 3 weeks). On price, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ninaru holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: ninaru has 520 ratings behind it against 27, so its average is the more settled of the two. Written reviews point the same way: 85% of ninaru's written reviews are positive against 14% of melmo(メルモ)'s.

UpkeepUpdate frequency

ninaru ships an update every 3 weeks, melmo(メルモ) weekly. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

Scorecard5 real differences · 5 level
ninaru versus melmo(メルモ): the parameters behind the verdict, then further details
Parameterninarumelmo(メルモ)
PriceFreeFree
Rating4.9 (520 ratings) — better4.4 (27 ratings)
Positive reviews84.8% of reviews — better14.3% of reviews
Number of ratings520 — better27
Update frequencyEvery 3 weeksWeekly — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size120 MB110 MB
Age rating17+17+
DeveloperEVER SENSE, INC.MEDLEY, INC

Customer experience

ninaru

All ratings520 ratings
Positive99.0%
Neutral1.0%
Negative0.0%
Written reviews66 reviews
Positive84.8%
Neutral4.5%
Negative10.6%

melmo(メルモ)

All ratings27 ratings
Positive81.5%
Neutral7.4%
Negative11.1%
Written reviews21 reviews
Positive14.3%
Neutral19.0%
Negative66.7%

In-app purchases

None

ninaru

No in-app purchases

None

melmo(メルモ)

No in-app purchases

Questions

Is ninaru free?
ninaru is free to download, with no in-app purchases.
Is melmo(メルモ) free?
melmo(メルモ) is free to download, with no in-app purchases.
Which has better reviews, ninaru or melmo(メルモ)?
ninaru is rated higher. ninaru averages 4.9 out of 5 from 520 ratings, while melmo(メルモ) averages 4.4 from 27 ratings.
Do ninaru or melmo(メルモ) have ads?
ninaru shows ads; melmo(メルモ) does not.
Which is updated more often, ninaru or melmo(メルモ)?
ninaru ships an update every 3 weeks, and melmo(メルモ) weekly. Most recently, ninaru was updated on October 20, 2026 and melmo(メルモ) on October 18, 2026.

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