# Control City vs Document GPS

The clearest difference is update cadence: Control City at every 9 days against Document GPS's every 2 months. Control City also leads on iOS requirement (13.0 vs 15.1). 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.

Control City ships an update every 9 days, Document GPS every 2 months. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Control City | Document GPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/document-gps/id1644347594/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | — | Free |
| Size | 41 MB | 87 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Roqay](https://appshunter.io/developer/1239031707) | [ShelterZoom Corp](https://appshunter.io/developer/1472578633) |

## What reviewers say

### Control City

[App page](https://appshunter.io/ios/app/control-city/id1603424357)

**Features:** macOS Compatibility

**In-app purchases:** none


### Document GPS

[App page](https://appshunter.io/ios/app/document-gps/id1644347594)

Securely send and track email attachments with blockchain-based encryption. Control access, revoke permissions, and monitor all user activity in real-time. Offers a private library for recipients to upload encrypted files.

**Highlights:** Blockchain-based security, Real-time access tracking, Revoke download/share permissions, Encrypted file sending/receiving, Private recipient library, Timestamped activity log

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Control City free?

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

### Is Document GPS free?

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

### Do Control City or Document GPS have ads?

Neither Control City nor Document GPS shows ads.

### Which is updated more often, Control City or Document GPS?

Control City ships an update every 9 days, and Document GPS every 2 months. Most recently, Control City was updated on September 29, 2026 and Document GPS on October 2, 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.*