# 我的私教 vs Filter Calculator

The clearest difference is in-app purchases: 我的私教 at none against Filter Calculator's 1. 我的私教 also leads on ads (none vs shown) and update cadence (monthly vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Filter Calculator sells 1 one-off in-app purchase. 我的私教 asks for nothing beyond the download.

我的私教 ships an update monthly, Filter Calculator every 5 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 我的私教 | Filter Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 53 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jiangsu Jingdong Information Technology Co., Ltd.](https://appshunter.io/developer/1248807651) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### 我的私教

[App page](https://appshunter.io/ios/app/id1485243411)

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

**In-app purchases:** none


### Filter Calculator

[App page](https://appshunter.io/ios/app/filter-calculator-electronics/id6754560517)

Design various types of electronic filters, including RC, RL, RLC, and passive crossovers, with customizable orders and alignments. Instantly obtain component values and Bode insights for lab, classroom, or audio projects. Ideal for engineers, hobbyists, and students.

**Highlights:** Design RC, RL, and RLC filters (2nd-7th order), Butterworth & Chebyshev alignments, Passive crossover calculations, Twin-T notch filter design, Instant component values, Bode insights, Offline-friendly dark mode UI

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro | $2.99 | one-time |


## Frequently asked questions

### Is 我的私教 free?

我的私教 is free to download, with no in-app purchases.

### Is Filter Calculator free?

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

### Do 我的私教 or Filter Calculator have ads?

Filter Calculator shows ads; 我的私教 does not.

### Which is updated more often, 我的私教 or Filter Calculator?

我的私教 ships an update monthly, and Filter Calculator every 5 months. Most recently, 我的私教 was updated on October 7, 2026 and Filter Calculator on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*