# ANGSTROM vs NotiDrop

The clearest difference is in-app purchases: ANGSTROM at none against NotiDrop's 2. ANGSTROM also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). NotiDrop's advantage is update cadence (weekly vs every 4 months). On price and device support there is nothing between them.

Both are free to download. NotiDrop sells 2 in-app purchases, starting at $1.99 per month. ANGSTROM asks for nothing beyond the download.

ANGSTROM ships an update every 4 months, NotiDrop weekly. The most recent releases landed on October 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ANGSTROM | NotiDrop |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Size | 10 MB | 36 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PURGATIO inc.](https://appshunter.io/developer/1581986238) | [MINSEO CHOI](https://appshunter.io/developer/1858475363) |

## What reviewers say

### ANGSTROM

[App page](https://appshunter.io/ios/app/angstrom/id1588375718)

**Features:** macOS Compatibility

**In-app purchases:** none


### NotiDrop

[App page](https://appshunter.io/ios/app/notidrop/id6756093421)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Subscription | $1.99 | per month |
| Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is ANGSTROM free?

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

### Is NotiDrop free?

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

### Do ANGSTROM or NotiDrop have ads?

NotiDrop shows ads; ANGSTROM does not.

### Which is updated more often, ANGSTROM or NotiDrop?

ANGSTROM ships an update every 4 months, and NotiDrop weekly. Most recently, ANGSTROM was updated on October 7, 2026 and NotiDrop on October 28, 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.*