# SENTRY AI Helicopter vs OA协同平台

The clearest difference is update cadence: OA协同平台 at weekly against SENTRY AI Helicopter's every 2 months. 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.

SENTRY AI Helicopter ships an update every 2 months, OA协同平台 weekly. The most recent releases landed on September 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SENTRY AI Helicopter | OA协同平台 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 144 MB | 40 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Le Wei Technology(HK) Limited](https://appshunter.io/developer/492007961) | [国华 黄](https://appshunter.io/developer/1831920699) |

## What reviewers say

### SENTRY AI Helicopter

[App page](https://appshunter.io/ios/app/sentry-ai-helicopter/id6446670497)

**Features:** macOS Compatibility

**In-app purchases:** none


### OA协同平台

[App page](https://appshunter.io/ios/app/oa/id6749850070)

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

**In-app purchases:** none


## Frequently asked questions

### Is SENTRY AI Helicopter free?

SENTRY AI Helicopter is free to download, with no in-app purchases.

### Is OA协同平台 free?

OA协同平台 is free to download, with no in-app purchases.

### Do SENTRY AI Helicopter or OA协同平台 have ads?

Neither SENTRY AI Helicopter nor OA协同平台 shows ads.

### Which is updated more often, SENTRY AI Helicopter or OA协同平台?

SENTRY AI Helicopter ships an update every 2 months, and OA协同平台 weekly. Most recently, SENTRY AI Helicopter was updated on September 27, 2026 and OA协同平台 on October 28, 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.*