# Instant Mobile Alert vs Calculator ÷

The clearest difference is ads: Instant Mobile Alert at none against Calculator ÷'s shown. Instant Mobile Alert also leads on rating (5.0 vs 4.6) and update cadence (every 3 weeks vs every 4 months). Calculator ÷'s advantage is ratings volume (194 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.

Instant Mobile Alert holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Calculator ÷ has 194 ratings behind it against 2, so its average is the more settled of the two.

Instant Mobile Alert ships an update every 3 weeks, Calculator ÷ every 4 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Instant Mobile Alert | Calculator ÷ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/instant-mobile-alert/id1504137124/reviews)** | [4.6 (194 ratings)](https://appshunter.io/ios/app/calculator/id1541460918/reviews) |
| Number of ratings | 2 | **194** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | **Free** | Ad-supported |
| Size | 26 MB | 15 MB |
| Requires iOS | 12.2 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CAPSOL, LLC](https://appshunter.io/developer/1394185059) | [Przemyslaw Skowronek](https://appshunter.io/developer/1106865975) |

## What reviewers say

### Instant Mobile Alert

[App page](https://appshunter.io/ios/app/instant-mobile-alert/id1504137124)

Receive critical message notifications from authorized administrators on campus or in a business. This utility app is designed for users in any US city, county, or state to stay informed.

**Highlights:** Receive message notifications, Authorized administrator messages, Campus and business alerts, US city, county, and state coverage

**In-app purchases:** none


### Calculator ÷

[App page](https://appshunter.io/ios/app/calculator/id1541460918)

This app offers a straightforward and efficient calculation experience with a history log to review past computations. It supports multitasking and offers a dark mode for comfortable use.

**Highlights:** History Tracking, Quick Copy, Universal Support (iPhone/iPad), Split View Ready, Dark Mode Support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Instant Mobile Alert free?

Instant Mobile Alert is free to download, with no in-app purchases.

### Is Calculator ÷ free?

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

### Which has better reviews, Instant Mobile Alert or Calculator ÷?

Instant Mobile Alert is rated higher. Instant Mobile Alert averages 5.0 out of 5 from 2 ratings, while Calculator ÷ averages 4.6 from 194 ratings.

### Do Instant Mobile Alert or Calculator ÷ have ads?

Calculator ÷ shows ads; Instant Mobile Alert does not.

### Which is updated more often, Instant Mobile Alert or Calculator ÷?

Instant Mobile Alert ships an update every 3 weeks, and Calculator ÷ every 4 months. Most recently, Instant Mobile Alert was updated on October 15, 2026 and Calculator ÷ on October 24, 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.*