# Notilify vs S Calculator

The clearest difference is price: Notilify at Free against S Calculator's $2.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Notilify is free to download; S Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Notilify ships an update every 5 months, S Calculator every 3 months. Both last shipped on October 19, 2026.

## The numbers

| Metric | Notilify | S Calculator |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/notilify/id1668591119/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | **Free** | Paid |
| Size | 11 MB | 20 MB |
| Requires iOS | 16.2 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Ariel Araya-Madrigal](https://appshunter.io/developer/1623018170) | [赟杰 吕](https://appshunter.io/developer/1548405085) |

## What reviewers say

### Notilify

[App page](https://appshunter.io/ios/app/notilify/id1668591119)

This pocket solver tackles common everyday problems like scientific notation, percentages, interest calculations, and various number system conversions. It aims to be a versatile tool for quick problem-solving.

**Highlights:** Scientific notation solver, Percentage calculator, Interest calculations, MLA formatting, Binary and Hexadecimal conversion

**Features:** macOS Compatibility

**In-app purchases:** none


### S Calculator

[App page](https://appshunter.io/ios/app/s-calculator-private-vault/id6478574396)

This app functions as a regular calculator but secretly hides your photos, videos, notes, and browsing history behind a passcode. It offers multiple security layers, including a decoy vault and self-destruct option, ensuring your private data remains confidential.

**Highlights:** Disguised as a regular calculator, Secure vault for photos and videos, Private browser with download capabilities, Encrypted notes with Markdown support, Three-level security: real, decoy, and self-destruct, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Notilify free?

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

### Is S Calculator free?

S Calculator costs $2.99, with no in-app purchases.

### Do Notilify or S Calculator have ads?

Neither Notilify nor S Calculator shows ads.

### Which is updated more often, Notilify or S Calculator?

Notilify ships an update every 5 months, and S Calculator every 3 months. Most recently, Notilify was updated on October 19, 2026 and S Calculator on October 19, 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.*