# 九九问答 vs LT

The clearest difference is device support: LT at 3 against 九九问答's 1. LT also leads on iOS requirement (15.0 vs 18.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

九九问答 ships an update every 10 days, LT every 5 days. The most recent releases landed on October 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | 九九问答 | LT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Size | 53 MB | 74 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [厦门可圈网络科技有限公司](https://appshunter.io/developer/1842698393) | [X G H PHONES TRADING L.L.C](https://appshunter.io/developer/1844347960) |

## What reviewers say

### 九九问答

[App page](https://appshunter.io/ios/app/id6753146356)

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

**In-app purchases:** none


### LT

[App page](https://appshunter.io/ios/app/lt-pms/id6785265338)

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

**In-app purchases:** none


## Frequently asked questions

### Is 九九问答 free?

九九问答 is free to download, with no in-app purchases.

### Is LT free?

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

### Do 九九问答 or LT have ads?

Neither 九九问答 nor LT shows ads.

### Which is updated more often, 九九问答 or LT?

九九问答 ships an update every 10 days, and LT every 5 days. Most recently, 九九问答 was updated on October 30, 2026 and LT 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.*