# Pf Fidelity vs SDAR智能助手

The clearest difference is update cadence: SDAR智能助手 at every 3 weeks against Pf Fidelity's every 5 months. Pf Fidelity's advantage is iOS requirement (11.0 vs 13.0). 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.

Pf Fidelity ships an update every 5 months, SDAR智能助手 every 3 weeks. The most recent releases landed on September 18, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Pf Fidelity | SDAR智能助手 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sdar/id1563408637/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 93 MB | 156 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Connecta Srls](https://appshunter.io/developer/1073890583) | [Shenzhen External Brain Technology Co., Ltd.](https://appshunter.io/developer/1563408639) |

## What reviewers say

### Pf Fidelity

[App page](https://appshunter.io/ios/app/pf-fidelity/id1434839440)

**Features:** macOS Compatibility

**In-app purchases:** none


### SDAR智能助手

[App page](https://appshunter.io/ios/app/sdar/id1563408637)

This AI-powered assistant helps you build healthy habits by recording your daily life from a first-person perspective. It analyzes your routines, provides personalized plans, and connects you with a supportive community to achieve your goals.

**Highlights:** First-person daily life recording, AI analysis of daily events, Data visualization of habits, Personalized AI-generated plans, Community interaction and sharing, Convenient hardware integration

**In-app purchases:** none


## Frequently asked questions

### Is Pf Fidelity free?

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

### Is SDAR智能助手 free?

SDAR智能助手 is free to download, with no in-app purchases.

### Do Pf Fidelity or SDAR智能助手 have ads?

Neither Pf Fidelity nor SDAR智能助手 shows ads.

### Which is updated more often, Pf Fidelity or SDAR智能助手?

Pf Fidelity ships an update every 5 months, and SDAR智能助手 every 3 weeks. Most recently, Pf Fidelity was updated on September 18, 2026 and SDAR智能助手 on June 5, 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.*