# 竹云OTP vs SatZone

The clearest difference is update cadence: SatZone at every 3 weeks against 竹云OTP's every 5 months. 竹云OTP's advantage is iOS requirement (8.0 vs 13.0). 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.

竹云OTP ships an update every 5 months, SatZone every 3 weeks. The most recent releases landed on September 17, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | 竹云OTP | SatZone |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 25 MB | 117 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Bamboocloud Co., Ltd.](https://appshunter.io/developer/1141247183) | [鑫诺卫星通信有限公司](https://appshunter.io/developer/1259086143) |

## What reviewers say

### 竹云OTP

[App page](https://appshunter.io/ios/app/otp/id1141247184)

**Features:** macOS Compatibility

**In-app purchases:** none


### SatZone

[App page](https://appshunter.io/ios/app/satzone/id1589561335)

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

**In-app purchases:** none


## Frequently asked questions

### Is 竹云OTP free?

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

### Is SatZone free?

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

### Do 竹云OTP or SatZone have ads?

Neither 竹云OTP nor SatZone shows ads.

### Which is updated more often, 竹云OTP or SatZone?

竹云OTP ships an update every 5 months, and SatZone every 3 weeks. Most recently, 竹云OTP was updated on September 17, 2026 and SatZone on September 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.*