# DuoIoT vs OTS GPS Pro

The clearest difference is update cadence: DuoIoT at weekly against OTS GPS Pro's every 2 months. DuoIoT also leads on iOS requirement (12.0 vs 14.0.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DuoIoT ships an update weekly, OTS GPS Pro every 2 months. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | DuoIoT | OTS GPS Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/duoiot/id6474174065/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free | — |
| Size | 41 MB | 62 MB |
| Requires iOS | **12.0** | 14.0.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Dualmi Technology Co., Ltd.](https://appshunter.io/developer/1719044980) | [Sudarshana Wijethunga](https://appshunter.io/developer/1779759895) |

## What reviewers say

### DuoIoT

[App page](https://appshunter.io/ios/app/duoiot/id6474174065)

Real-time GPS tracking for vehicles, equipment, and assets. Monitor locations, review trip history, and set up custom alerts for important areas. Secure and reliable asset management.

**Highlights:** Real-time GPS tracking, Vehicle and equipment monitoring, Historical trip playback, Interactive map view, Geofence creation, Customizable alerts

**Features:** macOS Compatibility

**In-app purchases:** none


### OTS GPS Pro

[App page](https://appshunter.io/ios/app/ots-gps-pro/id6738204404)

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

**In-app purchases:** none


## Frequently asked questions

### Is DuoIoT free?

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

### Is OTS GPS Pro free?

OTS GPS Pro is free to download, with no in-app purchases.

### Do DuoIoT or OTS GPS Pro have ads?

Neither DuoIoT nor OTS GPS Pro shows ads.

### Which is updated more often, DuoIoT or OTS GPS Pro?

DuoIoT ships an update weekly, and OTS GPS Pro every 2 months. Most recently, DuoIoT was updated on October 9, 2026 and OTS GPS Pro on October 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.*