# TimeEcho vs Biwatt

The clearest difference is rating: Biwatt at 5.0 against TimeEcho's 4.2. Biwatt also leads on in-app purchases (none vs 4) and iOS requirement (12.0 vs 16.6). TimeEcho's advantage is update cadence (weekly vs monthly) and ratings volume (5 vs 1). On price and ads there is nothing between them.

Both are free to download. TimeEcho sells 4 in-app purchases, starting at $1.99 per month. Biwatt asks for nothing beyond the download.

Biwatt holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: TimeEcho has 5 ratings behind it against 1, so its average is the more settled of the two.

TimeEcho ships an update weekly, Biwatt monthly. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TimeEcho | Biwatt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/timeecho-focus-journal/id6450100115/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/biwatt/id6472389347/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 88 MB | 60 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [浩 张](https://appshunter.io/developer/1691601813) | [Shenzhen Biwatt Technology Co., Ltd.](https://appshunter.io/developer/1717003482) |

## What reviewers say

### TimeEcho

[App page](https://appshunter.io/ios/app/timeecho-focus-journal/id6450100115)

This app helps you understand how you spend your time by tracking daily activities, habits, and focused tasks. It offers visual timelines, habit heatmaps, and journaling to provide deeper self-insights and improve productivity.

**Highlights:** Timeline of daily activities, Habit dedication tracking, Focus timers with continuation, Journaling for private thoughts, Visual habit heatmap, Book reading milestones

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $1.99 | per month |
| Annual Membership | $14.99 | per year |
| 终生会员 | $17.99 | one-time |
| 终生会员 | $19.99 | one-time |


### Biwatt

[App page](https://appshunter.io/ios/app/biwatt/id6472389347)

Manage your Biwatt ESS system with this app. It offers real-time energy monitoring, data visualization, and advanced control for optimizing system performance. Streamlines installation and system management with self-inspection features.

**Highlights:** Real-time energy monitoring, Enriched data graphs, System performance optimization, Efficient installation workflow, Advanced self-inspection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TimeEcho free?

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

### Is Biwatt free?

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

### Which has better reviews, TimeEcho or Biwatt?

Biwatt is rated higher. TimeEcho averages 4.2 out of 5 from 5 ratings, while Biwatt averages 5.0 from 1 ratings.

### Do TimeEcho or Biwatt have ads?

Neither TimeEcho nor Biwatt shows ads.

### Which is updated more often, TimeEcho or Biwatt?

TimeEcho ships an update weekly, and Biwatt monthly. Most recently, TimeEcho was updated on October 13, 2026 and Biwatt on October 7, 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.*