# 智能健身助手 vs SJ IPv4 Calculator

The clearest difference is in-app purchases: 智能健身助手 at none against SJ IPv4 Calculator's 5. 智能健身助手 also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.0). SJ IPv4 Calculator's advantage is update cadence (weekly vs every 13 months). On price and device support there is nothing between them.

Both are free to download. SJ IPv4 Calculator sells 5 one-off in-app purchases. 智能健身助手 asks for nothing beyond the download.

智能健身助手 ships an update every 13 months, SJ IPv4 Calculator weekly. Both last shipped on October 30, 2026.

## The numbers

| Metric | 智能健身助手 | SJ IPv4 Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Weekly** |
| Size | 131 MB | 4 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Lutong Network Technology Co., Ltd](https://appshunter.io/developer/588109241) | [Stephane JAILLIARD](https://appshunter.io/developer/1749751077) |

## What reviewers say

### 智能健身助手

[App page](https://appshunter.io/ios/app/id6443996865)

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

**In-app purchases:** none


### SJ IPv4 Calculator

[App page](https://appshunter.io/ios/app/sj-ipv4-calculator/id6503641575)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A coffee | $0.99 | one-time |
| A cookie | $2.99 | one-time |
| A lemon tart | $4.99 | one-time |
| No ads | $4.99 | one-time |
| A pizza | $9.99 | one-time |


## Frequently asked questions

### Is 智能健身助手 free?

智能健身助手 is free to download, with no in-app purchases.

### Is SJ IPv4 Calculator free?

SJ IPv4 Calculator is free to download, with in-app purchases available.

### Do 智能健身助手 or SJ IPv4 Calculator have ads?

SJ IPv4 Calculator shows ads; 智能健身助手 does not.

### Which is updated more often, 智能健身助手 or SJ IPv4 Calculator?

智能健身助手 ships an update every 13 months, and SJ IPv4 Calculator weekly. Most recently, 智能健身助手 was updated on October 30, 2026 and SJ IPv4 Calculator on October 30, 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.*