# Ask Simon vs Biwatt

The clearest difference is update cadence: Biwatt at monthly against Ask Simon's every 12 months. Biwatt also leads on iOS requirement (12.0 vs 15.0). 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.

Ask Simon ships an update every 12 months, Biwatt monthly. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Ask Simon | Biwatt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/biwatt/id6472389347/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Monthly** |
| Monetization | — | Free |
| Size | 57 MB | 60 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [GuestCompass](https://appshunter.io/developer/848540712) | [Shenzhen Biwatt Technology Co., Ltd.](https://appshunter.io/developer/1717003482) |

## What reviewers say

### Ask Simon

[App page](https://appshunter.io/ios/app/ask-simon-ssh-and/id1529230609)

**In-app purchases:** none


### 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 Ask Simon free?

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

### Is Biwatt free?

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

### Do Ask Simon or Biwatt have ads?

Neither Ask Simon nor Biwatt shows ads.

### Which is updated more often, Ask Simon or Biwatt?

Ask Simon ships an update every 12 months, and Biwatt monthly. Most recently, Ask Simon was updated on October 3, 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.*