# NotifyDoc vs Stargaze

The clearest difference is in-app purchases: NotifyDoc at none against Stargaze's 6. NotifyDoc also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.6). Stargaze's advantage is update cadence (every 2 days vs every 3 months). On price and ads there is nothing between them.

Both are free to download. Stargaze sells 6 one-off in-app purchases. NotifyDoc asks for nothing beyond the download.

NotifyDoc ships an update every 3 months, Stargaze every 2 days. The most recent releases landed on September 6, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | NotifyDoc | Stargaze |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stargaze-habit-tracker/id6761014900/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 81 MB | 45 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [KEYSTONE MEDICAL SERVICES INDIA PRIVATE LIMITED](https://appshunter.io/developer/1452582504) | [Hazel's Garden LLC](https://appshunter.io/developer/1887308603) |

## What reviewers say

### NotifyDoc

[App page](https://appshunter.io/ios/app/notifydoc/id6755414895)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stargaze

[App page](https://appshunter.io/ios/app/stargaze-habit-tracker/id6761014900)

Visualize your habits as a night sky, creating constellations as you complete them. Track your progress with streaks and analytics, and keep notes with a built-in journal. Enjoy a private, ad-free experience with data export and archiving.

**Highlights:** Habit visualization as night sky, Customizable habit details, Streak counter and analytics, Integrated daily journal, Data export and import, Habit archiving

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Neutron Star | $0.99 | one-time |
| White Dwarf | $1.99 | one-time |
| Red Dwarf | $3.99 | one-time |
| Stargaze Plus | $4.99 | one-time |
| Main Sequence | $5.99 | one-time |
| Red Giant | $9.99 | one-time |


## Frequently asked questions

### Is NotifyDoc free?

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

### Is Stargaze free?

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

### Do NotifyDoc or Stargaze have ads?

Neither NotifyDoc nor Stargaze shows ads.

### Which is updated more often, NotifyDoc or Stargaze?

NotifyDoc ships an update every 3 months, and Stargaze every 2 days. Most recently, NotifyDoc was updated on September 6, 2026 and Stargaze on September 20, 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.*