# MathAlarm vs Prism Ping

The clearest difference is price: Prism Ping at Free against MathAlarm's $0.99. MathAlarm's advantage is iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Prism Ping is free to download; MathAlarm costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | MathAlarm | Prism Ping |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mathalarm-wake-to-solve/id6787743298/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Paid | — |
| Size | 2 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Discipline Labs LLC](https://appshunter.io/developer/6787710446) | [George Field](https://appshunter.io/developer/1828914617) |

## What reviewers say

### MathAlarm

[App page](https://appshunter.io/ios/app/mathalarm-wake-to-solve/id6787743298)

This alarm app requires users to solve math problems to turn it off, ensuring they are fully awake. It offers customizable settings for repeat schedules, difficulty levels, and alert types, all managed directly on your wrist.

**Highlights:** Solve math problems to stop alarm, Customizable repeat schedules, Four difficulty levels, Haptic or Sound + Vibrate alerts, Multiple independent alarms, Runs entirely on Apple Watch, No iPhone required

**Features:** Apple Watch app

**In-app purchases:** none


### Prism Ping

[App page](https://appshunter.io/ios/app/prism-ping/id6802632166)

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

**In-app purchases:** none


## Frequently asked questions

### Is MathAlarm free?

MathAlarm costs $0.99, with no in-app purchases.

### Is Prism Ping free?

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

### Do MathAlarm or Prism Ping have ads?

Neither MathAlarm nor Prism Ping shows ads.

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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.*