# Spy Phone ® Phone Tracker vs On

The clearest difference is rating: Spy Phone ® Phone Tracker at 4.0 against On's 1.0. Spy Phone ® Phone Tracker also leads on ratings volume (5.9K vs 1) and update cadence (every 2 months vs every 3 months). On's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Spy Phone ® Phone Tracker sells 4 in-app purchases, starting at $6.99 per 7 days. On asks for nothing beyond the download.

Spy Phone ® Phone Tracker holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: Spy Phone ® Phone Tracker has 5.9K ratings behind it against 1, so its average is the more settled of the two.

Spy Phone ® Phone Tracker ships an update every 2 months, On every 3 months. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Spy Phone ® Phone Tracker | On |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5.9K ratings)](https://appshunter.io/ios/app/spy-phone-phone-tracker/id917089298/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/on-track-gps-live/id1269018607/reviews) |
| Number of ratings | **5.9K** | 1 |
| Positive reviews | 94.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 102 MB | 32 MB |
| Requires iOS | 14.0 | **11** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spy Phone Labs LLC](https://appshunter.io/developer/917089297) | [M2M DATA GROUP LIMITED](https://appshunter.io/developer/1425847555) |

## 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 |


### On

[App page](https://appshunter.io/ios/app/on-track-gps-live/id1269018607)

Access your GPS tracking account to view real-time asset locations and historical playback. Manage your asset information directly within the application.

**Highlights:** Log into GPS tracking account, Modify asset information, View real-time asset location, Historical playback

**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 On free?

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

### Which has better reviews, Spy Phone ® Phone Tracker or On?

Spy Phone ® Phone Tracker is rated higher. Spy Phone ® Phone Tracker averages 4.0 out of 5 from 5.9K ratings, while On averages 1.0 from 1 ratings.

### Do Spy Phone ® Phone Tracker or On have ads?

Spy Phone ® Phone Tracker shows ads; On does not.

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

Spy Phone ® Phone Tracker ships an update every 2 months, and On every 3 months. Most recently, Spy Phone ® Phone Tracker was updated on November 8, 2026 and On on November 6, 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.*