# NightWell vs カロミル

The clearest difference is ratings volume: カロミル at 183 against NightWell's 16. カロミル also leads on update cadence (weekly vs every 3 weeks). NightWell's advantage is review sentiment (60% vs 51%) and iOS requirement (13.0 vs 17.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. NightWell sells 10 in-app purchases, starting at $9.99 per month and カロミル sells 11 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for NightWell against 4.7 for カロミル. That said, the two scores are not equally well evidenced: カロミル has 183 ratings behind it against 16, so its average is the more settled of the two. Written reviews are what separate them: 60% of NightWell's written reviews are positive against 51% of カロミル's.

NightWell ships an update every 3 weeks, カロミル weekly. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | NightWell | カロミル |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (16 ratings)](https://appshunter.io/ios/app/nightwellsmart-sleep-tracker/id827600695/reviews) | **[4.7 (183 ratings)](https://appshunter.io/ios/app/pfc/id963055562/reviews)** |
| Number of ratings | 16 | **183** |
| Positive reviews | **59.7% of reviews** | 50.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 125 MB | 188 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [株式会社C2](https://appshunter.io/developer/597389977) | [Life Log Technology, Inc.](https://appshunter.io/developer/1134414510) |

## What reviewers say

### NightWell

[App page](https://appshunter.io/ios/app/nightwellsmart-sleep-tracker/id827600695)

This smart sleep companion helps you track sleep patterns, monitor snoring, and wake up gently with intelligent alarms. Gain personalized insights to improve rest, energy, and focus, with calming sounds and mindful tips for relaxation before bed.

**Highlights:** Sleep pattern tracking, Snoring monitoring, Intelligent smart alarm, Personalized sleep insights, Calming lull sounds, Sleep reports, Cloud backup

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $39.99 | per year |
| Alarm sound "Minute Waltz" | $0.99 | one-time |
| Lull Sound "Berceuse Op. 57" | $0.99 | one-time |
| Alarm sound "Time for relax" | $0.99 | one-time |
| Alarm sound "Slumber" | $0.99 | one-time |
| Alarm sound "Piscatio" | $0.99 | one-time |
| Lull Sound "Kagura" | $0.99 | one-time |
| Alarm sound "Peer Gynt Morgenstemning Op.46  w/ES " | $0.99 | one-time |
| Alarm sound "Nocturne No.2" | $0.99 | one-time |


### カロミル

[App page](https://appshunter.io/ios/app/pfc/id963055562)

Track your daily intake of calories, macronutrients (protein, fat, carbs), and micronutrients like fiber and salt. Analyze your nutritional balance with easy-to-understand charts and set personalized health goals. Supports various logging methods, including image and barcode scanning.

**Highlights:** Calorie and macronutrient tracking, Micronutrient (fiber, salt) tracking, Nutritional balance analysis with charts, Personalized goal setting, Image and barcode food logging, Exercise logging, Health app data integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| メモ | $0.99 | per month |
| 血圧管理（基本機能のみ） | $1.99 | per month |
| 応援プラン | $1.99 | per month |
| PFCバランス達成状況 | $1.99 | per month |
| 曜日ごとカロリー設定 | $1.99 | per month |
| 血圧記録(血圧計の画像自動解析付き) | $2.99 | per month |
| 食事提案 | $3.49 | per month |
| プレミアムプラン | $3.49 | per month |
| 血圧管理(データ出力・血圧計の画像自動解析付き) | $3.99 | per month |
| 除脂肪コース | $3.99 | per month |
| 血糖値管理(データ出力・血糖測定器の画像自動解析付き) | $4.49 | per month |


## Frequently asked questions

### Is NightWell free?

NightWell is free to download, with in-app purchases available.

### Is カロミル free?

カロミル is free to download, with in-app purchases available.

### Which has better reviews, NightWell or カロミル?

カロミル is rated higher. NightWell averages 4.6 out of 5 from 16 ratings, while カロミル averages 4.7 from 183 ratings.

### Do NightWell or カロミル have ads?

Both NightWell and カロミル show ads.

### Which is updated more often, NightWell or カロミル?

NightWell ships an update every 3 weeks, and カロミル weekly. Most recently, NightWell was updated on October 15, 2026 and カロミル on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*