# Smart Battery Widget vs E10 Fuel Compatibility Check

Smart Battery Widget and E10 Fuel Compatibility Check are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Smart Battery Widget sells 2 one-off in-app purchases and E10 Fuel Compatibility Check sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Smart Battery Widget | E10 Fuel Compatibility Check |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (188 ratings)](https://appshunter.io/ios/app/smart-battery-widget/id1514578375/reviews)** | — |
| Number of ratings | **188** | — |
| Positive reviews | 57.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 9 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Elham Madh Farimani](https://appshunter.io/developer/1735189015) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Smart Battery Widget

[App page](https://appshunter.io/ios/app/smart-battery-widget/id1514578375)

Monitor your device's battery, storage, and network activity with real-time data and smart estimations. View key metrics and usage predictions directly on your home screen with customizable widgets.

**Highlights:** Battery monitoring and usage estimations, Storage monitoring and capacity estimations, Network activity and speed monitoring, Customizable home screen widgets, Lock screen widgets, Real-time data display

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lock screen widgets | $1.99 | one-time |
| Fusion Widget | $1.99 | one-time |

**What reviewers like**

- 🎨 Beautiful and modern UI design
- 👍 Simple and intuitive user interface
- 📊 Useful widget functionality for monitoring battery, storage, and data
- ⚡ Lightweight app with minimal resource usage
- 🆓 No ads or intrusive monetization

**What reviewers complain about**

- 🐛 Battery estimation features frequently broken or showing zero values
- 🐛 Widgets not displaying correctly or updating in real-time
- 🐛 Data accuracy issues across multiple features
- 🐛 iOS compatibility problems (iOS 16, 17, and newer versions)
- 🐛 iPad version not functioning properly

**Reported bugs**

- Battery consumption estimations showing zero or stuck values
- Widgets not appearing in widget menu or home screen
- Fusion widget displaying as blank white block
- Widget not updating in real-time without opening app
- Storage widget showing incorrect capacity values

**Requested features**

- Clear mode support for iOS 26 widgets
- Apple Watch app support
- Auto-reset of data package on fixed monthly date
- Real-time network speed monitoring widgets
- Show which apps/processes are using network


### E10 Fuel Compatibility Check

[App page](https://appshunter.io/ios/app/e10-fuel-compatibility-check/id6779277548)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Octane Ratings – Weekly | $2.99 | per 7 days |
| Engine Safety – Yearly | $14.99 | per year |
| Gasoline Guide, Pay Once | $29.99 | one-time |


## Frequently asked questions

### Is Smart Battery Widget free?

Smart Battery Widget is free to download, with in-app purchases available.

### Is E10 Fuel Compatibility Check free?

E10 Fuel Compatibility Check is free to download, with in-app purchases available.

### Do Smart Battery Widget or E10 Fuel Compatibility Check have ads?

Neither Smart Battery Widget nor E10 Fuel Compatibility Check shows ads.

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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.*