# Off vs i

The clearest difference is iOS requirement: Off at 10.0 against i's 12.0. 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.

## The numbers

| Metric | Off | i |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 19 months |
| Monetization | — | Free |
| Size | 25 MB | 34 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Lithionics Battery LLC](https://appshunter.io/developer/1437635364) | [i-tecc batteries GmbH](https://appshunter.io/developer/1699629525) |

## What reviewers say

### Off

[App page](https://appshunter.io/ios/app/off-grid-battery/id1628954601)

**Features:** macOS Compatibility

**In-app purchases:** none


### i

[App page](https://appshunter.io/ios/app/i-tecc-plus-bms/id6453992900)

Monitor your i-tecc+ LiFePO4 batteries with detailed insights. Track state of charge, capacity, power usage, temperature, and charge cycles. Essential for managing battery health and performance.

**Highlights:** Monitor state of charge, Track battery capacity, View power consumption, Check battery temperature, Record charge cycles, LiFePO4 battery information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Off free?

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

### Is i free?

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

### Do Off or i have ads?

Neither Off nor i 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.*