# DianYiTong vs Tower

The clearest difference is update cadence: Tower at every 5 days against DianYiTong's every 3 weeks. DianYiTong's advantage is iOS requirement (16.0 vs 26.0). 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.

DianYiTong ships an update every 3 weeks, Tower every 5 days. The most recent releases landed on November 10, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | DianYiTong | Tower |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 18 MB | 7 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [长沙给力信息技术有限公司](https://appshunter.io/developer/912076798) | [CARSON BOONE UNDERWOOD](https://appshunter.io/developer/1884089880) |

## What reviewers say

### DianYiTong

[App page](https://appshunter.io/ios/app/dianyitong-t9-speed-dial/id6790920200)

This app offers a T9 dialer with offline functionality for iPhone users. It allows for quick contact searching via Pinyin input, provides a simplified interface for seniors, and includes offline lookup of number origins and service lines.

**Highlights:** Offline T9 Pinyin contact search, Senior Mode with large contact icons, Offline number origin and carrier lookup, Direct dialing for service and emergency numbers, Customizable contact sorting, Multiple app icon choices

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

**In-app purchases:** none


### Tower

[App page](https://appshunter.io/ios/app/tower-server-manager/id6796580819)

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

**In-app purchases:** none


## Frequently asked questions

### Is DianYiTong free?

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

### Is Tower free?

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

### Do DianYiTong or Tower have ads?

Neither DianYiTong nor Tower shows ads.

### Which is updated more often, DianYiTong or Tower?

DianYiTong ships an update every 3 weeks, and Tower every 5 days. Most recently, DianYiTong was updated on November 10, 2026 and Tower on November 8, 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.*