# i vs SAG梯控

The clearest difference is update cadence: SAG梯控 at every 3 weeks against i'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.

i ships an update every 2 months, SAG梯控 every 3 weeks. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | i | SAG梯控 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 45 MB | 58 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [国剑 陈](https://appshunter.io/developer/1488067418) | [家辉 费](https://appshunter.io/developer/1709375238) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-nest/id1489580725)

**In-app purchases:** none


### SAG梯控

[App page](https://appshunter.io/ios/app/sag/id6468025347)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is SAG梯控 free?

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

### Do i or SAG梯控 have ads?

Neither i nor SAG梯控 shows ads.

### Which is updated more often, i or SAG梯控?

i ships an update every 2 months, and SAG梯控 every 3 weeks. Most recently, i was updated on October 25, 2026 and SAG梯控 on October 27, 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.*