# ZT数据管家 vs 计算器i

The clearest difference is in-app purchases: ZT数据管家 at none against 计算器i's 7. ZT数据管家 also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.6). 计算器i's advantage is update cadence (every 9 days vs every 8 months). On price and device support there is nothing between them.

Both are free to download. 计算器i sells 6 in-app purchases, starting at $0.99 per month. ZT数据管家 asks for nothing beyond the download.

ZT数据管家 ships an update every 8 months, 计算器i every 9 days. The most recent releases landed on October 13, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | ZT数据管家 | 计算器i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (10 ratings)](https://appshunter.io/ios/app/i/id6738602207/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 75.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 62 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hangzhou Even Enjoy The Technology Co., Ltd.](https://appshunter.io/developer/1275489864) | [Chongqing Frozen Technology Co., LTD](https://appshunter.io/developer/1776534078) |

## What reviewers say

### ZT数据管家

[App page](https://appshunter.io/ios/app/zt/id1419991938)

**Features:** macOS Compatibility

**In-app purchases:** none


### 计算器i

[App page](https://appshunter.io/ios/app/i/id6738602207)

This app offers a powerful currency converter with support for over 170 currencies. It also includes a BMI calculator, date calculator, and a feature to convert numbers to their written Chinese form. Enjoy a clean interface with real-time results and no ads.

**Highlights:** 170+ currency support, BMI calculator, Date calculator, Number to Chinese word conversion, Real-time results, Ad-free experience

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP/月 | $0.99 | per month |
| VIP/月 | $3.99 | per month |
| VIP三个月 | $7.99 | per 3 months |
| VIP半年 | $24.99 | per 6 months |
| VIP/年 | $24.99 | per year |
| VIP/年(定制) | $29.99 | per year |


## Frequently asked questions

### Is ZT数据管家 free?

ZT数据管家 is free to download, with no in-app purchases.

### Is 计算器i free?

计算器i is free to download, with in-app purchases available.

### Do ZT数据管家 or 计算器i have ads?

计算器i shows ads; ZT数据管家 does not.

### Which is updated more often, ZT数据管家 or 计算器i?

ZT数据管家 ships an update every 8 months, and 计算器i every 9 days. Most recently, ZT数据管家 was updated on October 13, 2026 and 计算器i on October 20, 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.*