# Smart Battery Guard vs FlexAssist

The clearest difference is update cadence: Smart Battery Guard at fortnightly against FlexAssist's every 4 months. Smart Battery Guard also leads on 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.

Smart Battery Guard ships an update fortnightly, FlexAssist every 4 months. The most recent releases landed on September 13, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Smart Battery Guard | FlexAssist |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 9 MB | 42 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [富强 代](https://appshunter.io/developer/1470062133) | [Myriota Pty. Ltd.](https://appshunter.io/developer/1722334764) |

## What reviewers say

### Smart Battery Guard

[App page](https://appshunter.io/ios/app/smart-battery-guard/id1584470331)

**Features:** macOS Compatibility

**In-app purchases:** none


### FlexAssist

[App page](https://appshunter.io/ios/app/flexassist/id6474694371)

**In-app purchases:** none


## Frequently asked questions

### Is Smart Battery Guard free?

Smart Battery Guard is free to download, with no in-app purchases.

### Is FlexAssist free?

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

### Do Smart Battery Guard or FlexAssist have ads?

Neither Smart Battery Guard nor FlexAssist shows ads.

### Which is updated more often, Smart Battery Guard or FlexAssist?

Smart Battery Guard ships an update fortnightly, and FlexAssist every 4 months. Most recently, Smart Battery Guard was updated on September 13, 2026 and FlexAssist on September 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*