# 复利计算机 vs 充電博士

The clearest difference is in-app purchases: 充電博士 at none against 复利计算机's 1. 充電博士 also leads on update cadence (every 3 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 复利计算机 sells 1 one-off in-app purchase. 充電博士 asks for nothing beyond the download.

复利计算机 ships an update every 2 months, 充電博士 every 3 days. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 复利计算机 | 充電博士 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 41 MB | 77 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [potato](https://appshunter.io/developer/370828186) | [TTech Global Service Limited](https://appshunter.io/developer/1602455949) |

## What reviewers say

### 复利计算机

[App page](https://appshunter.io/ios/app/id370828183)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Eliminate Advertisement | $0.99 | one-time |


### 充電博士

[App page](https://appshunter.io/ios/app/id6446137813)

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

**In-app purchases:** none


## Frequently asked questions

### Is 复利计算机 free?

复利计算机 is free to download, with in-app purchases available.

### Is 充電博士 free?

充電博士 is free to download, with no in-app purchases.

### Do 复利计算机 or 充電博士 have ads?

Neither 复利计算机 nor 充電博士 shows ads.

### Which is updated more often, 复利计算机 or 充電博士?

复利计算机 ships an update every 2 months, and 充電博士 every 3 days. Most recently, 复利计算机 was updated on October 3, 2026 and 充電博士 on October 4, 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.*