# Calculator Mate vs S Calculator

The clearest difference is price: Calculator Mate at Free against S Calculator's $2.99. S Calculator's advantage is in-app purchases (none vs 6) and update cadence (every 3 months vs every 19 months). On ads, device support and iOS requirement there is nothing between them.

Calculator Mate is free to download; S Calculator costs $2.99 up front. Calculator Mate sells 6 in-app purchases, starting at $1.99 per 7 days. S Calculator asks for nothing beyond the download.

Calculator Mate ships an update every 19 months, S Calculator every 3 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Calculator Mate | S Calculator |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 months** |
| Monetization | — | Paid |
| Size | 25 MB | 20 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [LINATION TRADING LIMITED](https://appshunter.io/developer/1653062036) | [赟杰 吕](https://appshunter.io/developer/1548405085) |

## What reviewers say

### Calculator Mate

[App page](https://appshunter.io/ios/app/calculator-mate-solve-problem/id6444201830)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator Unlimited | $1.99 | per 7 days |
| Calculator Unlimited | $2.99 | per 7 days |
| Calculator Unlimited | $4.99 | per month |
| Calculator Unlimited | $6.99 | per month |
| Calculator Unlimited | $16.99 | per year |
| Calculator Unlimited | $22.99 | per year |


### 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 Calculator Mate free?

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

### Is S Calculator free?

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

### Do Calculator Mate or S Calculator have ads?

Neither Calculator Mate nor S Calculator shows ads.

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

Calculator Mate ships an update every 19 months, and S Calculator every 3 months. Most recently, Calculator Mate was updated on September 23, 2026 and S Calculator on September 20, 2026.

---

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