# E电检修 vs Retrace

The clearest difference is in-app purchases: E电检修 at none against Retrace's 4. E电检修 also leads on iOS requirement (15.0 vs 18.0). Retrace's advantage is ads (none vs shown) and update cadence (every 2 days vs every 7 months). On price and device support there is nothing between them.

Both are free to download. Retrace sells 4 in-app purchases, starting at $5.99 per month. E电检修 asks for nothing beyond the download.

E电检修 ships an update every 7 months, Retrace every 2 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | E电检修 | Retrace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/retrace-life-diary-and-tracker/id6481981341/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 2 days** |
| Monetization | — | Freemium |
| Size | 22 MB | 79 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [琪卿 罗](https://appshunter.io/developer/1509216807) | [美群 唐](https://appshunter.io/developer/1628513026) |

## What reviewers say

### E电检修

[App page](https://appshunter.io/ios/app/e/id1594367802)

**Features:** macOS Compatibility

**In-app purchases:** none


### Retrace

[App page](https://appshunter.io/ios/app/retrace-life-diary-and-tracker/id6481981341)

This app automatically tracks your daily activities and location to create a personal history. It offers smart analysis of your past, integrates with health data, and provides reports on time allocation. Designed with privacy in mind, it requires no sign-in.

**Highlights:** Automatic activity tracking, Smart life analysis, Health integration (Apple Health), Comprehensive time allocation reports, Privacy-focused design, No sign-in required

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Yearly | $29.99 | per year |
| Yearly (Standard) | $59.99 | per year |
| Lifetime membership | $129.99 | one-time |


## Frequently asked questions

### Is E电检修 free?

E电检修 is free to download, with no in-app purchases.

### Is Retrace free?

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

### Do E电检修 or Retrace have ads?

E电检修 shows ads; Retrace does not.

### Which is updated more often, E电检修 or Retrace?

E电检修 ships an update every 7 months, and Retrace every 2 days. Most recently, E电检修 was updated on November 7, 2026 and Retrace on November 8, 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.*