# Delta Calc vs iAliveWell

The clearest difference is price: iAliveWell at Free against Delta Calc's $0.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

iAliveWell is free to download; Delta Calc costs $0.99 up front. Delta Calc sells 1 one-off in-app purchase and iAliveWell sells 2 in-app purchases, starting at $0.99 per year. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Delta Calc | iAliveWell |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/delta-calc/id6504148868/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 5 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stephen Coffey](https://appshunter.io/developer/1723308273) | [Naihe Hu](https://appshunter.io/developer/564180065) |

## What reviewers say

### Delta Calc

[App page](https://appshunter.io/ios/app/delta-calc/id6504148868)

Quickly calculate percent changes, discounts, and financial gains without complex math. Solve for any of the three values in the percent change formula with an intuitive interface and fun animations.

**Highlights:** Calculate percent changes, Solve for any variable in the formula, Customizable decimal places, Haptic feedback, Fun animations, Adjustable keyboard buttons

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Delta Calc Lifetime | $9.99 | one-time |


### iAliveWell

[App page](https://appshunter.io/ios/app/ialivewell/id6757631882)

This app provides a safety net for individuals living alone, the elderly, and outdoor enthusiasts. It automatically checks in on users by monitoring activity metrics and alerts designated contacts if inactivity is detected. It offers peace of mind through a minimalist, privacy-first design.

**Highlights:** Smart Auto Check-in with HealthKit, Inactivity Alerts, Emergency Notifications to Contacts, Minimalist Background Operation, Privacy-First Data Handling, Remote Guardian System with Share Code

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Pro | $0.99 | per year |
| LifeTime Pro | $2.99 | one-time |


## Frequently asked questions

### Is Delta Calc free?

Delta Calc costs $0.99, and also offers in-app purchases.

### Is iAliveWell free?

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

### Do Delta Calc or iAliveWell have ads?

Neither Delta Calc nor iAliveWell 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.*