# Spy Phone ® Phone Tracker vs Custom Calculator

The clearest difference is price: Spy Phone ® Phone Tracker at Free against Custom Calculator's $0.99. Custom Calculator's advantage is in-app purchases (none vs 4) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Spy Phone ® Phone Tracker is free to download; Custom Calculator costs $0.99 up front. Spy Phone ® Phone Tracker sells 4 in-app purchases, starting at $6.99 per 7 days. Custom Calculator asks for nothing beyond the download.

Spy Phone ® Phone Tracker ships an update every 2 months, Custom Calculator monthly. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Spy Phone ® Phone Tracker | Custom Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.0 (5.9K ratings)](https://appshunter.io/ios/app/spy-phone-phone-tracker/id917089298/reviews)** | — |
| Number of ratings | **5.9K** | — |
| Positive reviews | 94.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 102 MB | 2 MB |
| Requires iOS | **14.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spy Phone Labs LLC](https://appshunter.io/developer/917089297) | [Dewayne Defoor](https://appshunter.io/developer/1746563265) |

## What reviewers say

### Spy Phone ® Phone Tracker

[App page](https://appshunter.io/ios/app/spy-phone-phone-tracker/id917089298)

Monitor loved ones' smartphone activities with real-time GPS tracking, contact monitoring, and alerts. Features include a panic button, battery level notifications, and installed app viewing to help ensure family safety.

**Highlights:** Real-time GPS location tracking, Contact list monitoring, Panic Button alerts, Battery level notifications, View installed apps, Area code lookup

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spy Phone Tracker package | $6.99 | per 7 days |
| Spy Phone Tracker package | $14.99 | per month |
| Spy Phone Tracker package | $29.99 | per 3 months |
| Spy Phone Tracker package | $49.99 | per year |


### Custom Calculator

[App page](https://appshunter.io/ios/app/custom-calculator-basic/id6502717475)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spy Phone ® Phone Tracker free?

Spy Phone ® Phone Tracker is free to download, with in-app purchases available.

### Is Custom Calculator free?

Custom Calculator costs $0.99, with no in-app purchases.

### Do Spy Phone ® Phone Tracker or Custom Calculator have ads?

Spy Phone ® Phone Tracker shows ads; Custom Calculator does not.

### Which is updated more often, Spy Phone ® Phone Tracker or Custom Calculator?

Spy Phone ® Phone Tracker ships an update every 2 months, and Custom Calculator monthly. Most recently, Spy Phone ® Phone Tracker was updated on October 31, 2026 and Custom Calculator on October 25, 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.*