# お使いーじー vs BatteryNest

The clearest difference is in-app purchases: お使いーじー at none against BatteryNest's 5. BatteryNest's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BatteryNest sells 5 in-app purchases, starting at $1.99 per month. お使いーじー asks for nothing beyond the download.

お使いーじー ships an update every 3 weeks, BatteryNest every 4 days. The most recent releases landed on September 5, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | お使いーじー | BatteryNest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 52 MB | 60 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Haruhiko Motokawa](https://appshunter.io/developer/1688347008) | [shunta nakamura](https://appshunter.io/developer/1876115931) |

## What reviewers say

### お使いーじー

[App page](https://appshunter.io/ios/app/id6449246683)

**Features:** macOS Compatibility

**In-app purchases:** none


### BatteryNest

[App page](https://appshunter.io/ios/app/batterynest/id6767813207)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BatteryNest Pro (Monthly) | $1.99 | per month |
| BatteryNest Pro (Annual) | $11.99 | per year |
| Ticket ×1 | $0.49 | one-time |
| Ticket ×5 | $1.99 | one-time |
| Ticket ×12 | $4.99 | one-time |


## Frequently asked questions

### Is お使いーじー free?

お使いーじー is free to download, with no in-app purchases.

### Is BatteryNest free?

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

### Do お使いーじー or BatteryNest have ads?

Neither お使いーじー nor BatteryNest shows ads.

### Which is updated more often, お使いーじー or BatteryNest?

お使いーじー ships an update every 3 weeks, and BatteryNest every 4 days. Most recently, お使いーじー was updated on September 5, 2026 and BatteryNest 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.*