# Amphi Notes vs Device Battery Manager

The clearest difference is update cadence: Device Battery Manager at every 5 days against Amphi Notes's every 4 months. Amphi Notes's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Amphi Notes ships an update every 4 months, Device Battery Manager every 5 days. The most recent releases landed on September 13, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Amphi Notes | Device Battery Manager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/device-battery-manager/id6754898665/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 82 MB | 5 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Seung Yong Lee](https://appshunter.io/developer/1790998522) | [Robert Wood](https://appshunter.io/developer/1490791786) |

## What reviewers say

### Amphi Notes

[App page](https://appshunter.io/ios/app/amphi-notes/id6740662483)

**Features:** macOS Compatibility

**In-app purchases:** none


### Device Battery Manager

[App page](https://appshunter.io/ios/app/device-battery-manager/id6754898665)

This app helps you track battery life for all your household devices. Receive timely notifications before batteries die, ensuring you're always prepared with replacements. Manage battery types, replacement dates, and expected lifespans for every device.

**Highlights:** Track unlimited devices, Smart replacement reminders, Comprehensive battery database, Customizable battery lists, Visual status indicators, Flexible sorting options, Dark mode support

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

**In-app purchases:** none


## Frequently asked questions

### Is Amphi Notes free?

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

### Is Device Battery Manager free?

Device Battery Manager is free to download, with no in-app purchases.

### Do Amphi Notes or Device Battery Manager have ads?

Neither Amphi Notes nor Device Battery Manager shows ads.

### Which is updated more often, Amphi Notes or Device Battery Manager?

Amphi Notes ships an update every 4 months, and Device Battery Manager every 5 days. Most recently, Amphi Notes was updated on September 13, 2026 and Device Battery Manager on September 6, 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.*