# Grace Care vs Deep Sky Diary

The clearest difference is rating: Deep Sky Diary at 5.0 against Grace Care's 4.5. Deep Sky Diary also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 months). Grace Care's advantage is ratings volume (70 vs 2). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Deep Sky Diary holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Grace Care has 70 ratings behind it against 2, so its average is the more settled of the two.

Grace Care ships an update every 3 months, Deep Sky Diary every 3 days. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Grace Care | Deep Sky Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (70 ratings)](https://appshunter.io/ios/app/grace-care/id1324884563/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/deep-sky-diary/id1510396752/reviews)** |
| Number of ratings | **70** | 2 |
| Positive reviews | 22.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 8 MB |
| Requires iOS | 15.4 | **14.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Eggs Co., Ltd.](https://appshunter.io/developer/1591189206) | [Shunzhe Ma](https://appshunter.io/developer/1052286218) |

## What reviewers say

### Grace Care

[App page](https://appshunter.io/ios/app/grace-care/id1324884563)

This app offers doctor-supervised femtech support for women's health. It provides accurate predictions for ovulation and menstruation, even for irregular cycles, and offers personalized advice based on user data. It also includes features for ovarian age assessment and access to expert consultations and clinic partnerships.

**Highlights:** Doctor-supervised femtech support, Accurate ovulation and period prediction, Personalized expert advice, Ovarian age and egg count prediction, Q&A with supervising doctor, Fertility and health information articles, Partnerships with fertility clinics

**Features:** Vision Pro support

**In-app purchases:** none


### Deep Sky Diary

[App page](https://appshunter.io/ios/app/deep-sky-diary/id1510396752)

Record your thoughts and memories for your future self or send messages into the void. This app allows you to create regular diary entries, schedule future readings, or send messages that are permanently deleted.

**Highlights:** Regular diary entries, Scheduled future readings, Ephemeral black hole messages, Optional black hole receipt

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grace Care free?

Grace Care is free to download, with no in-app purchases.

### Is Deep Sky Diary free?

Deep Sky Diary is free to download, with no in-app purchases.

### Which has better reviews, Grace Care or Deep Sky Diary?

Deep Sky Diary is rated higher. Grace Care averages 4.5 out of 5 from 70 ratings, while Deep Sky Diary averages 5.0 from 2 ratings.

### Do Grace Care or Deep Sky Diary have ads?

Grace Care shows ads; Deep Sky Diary does not.

### Which is updated more often, Grace Care or Deep Sky Diary?

Grace Care ships an update every 3 months, and Deep Sky Diary every 3 days. Most recently, Grace Care was updated on October 17, 2026 and Deep Sky Diary on October 11, 2026.

---

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