# AMPI vs Century Lithium Pro

The clearest difference is update cadence: Century Lithium Pro at every 4 months against AMPI's every 16 months. AMPI's advantage is iOS requirement (12.0 vs 15.6). 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.

AMPI ships an update every 16 months, Century Lithium Pro every 4 months. The most recent releases landed on October 29, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | AMPI | Century Lithium Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 98 MB | 7 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Australasian Marine Pilots Institute Limited](https://appshunter.io/developer/1485179767) | [Century Yuasa Batteries Pty. Limited](https://appshunter.io/developer/1617417268) |

## What reviewers say

### AMPI

[App page](https://appshunter.io/ios/app/ampi/id1485179768)

**Features:** macOS Compatibility

**In-app purchases:** none


### Century Lithium Pro

[App page](https://appshunter.io/ios/app/century-lithium-pro/id1617417266)

Monitor your Century Deep Cycle LFP battery's performance in real-time via Bluetooth. View state of charge, voltage, current, temperature, and individual cell voltages. Receive alerts for any battery status abnormalities.

**Highlights:** Real-time battery monitoring, State of Charge (SOC) display, Voltage and current tracking, Battery temperature monitoring, Individual cell voltage readings, Battery status alerts, Customizable battery naming

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

**In-app purchases:** none


## Frequently asked questions

### Is AMPI free?

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

### Is Century Lithium Pro free?

Century Lithium Pro is free to download, with no in-app purchases.

### Do AMPI or Century Lithium Pro have ads?

Neither AMPI nor Century Lithium Pro shows ads.

### Which is updated more often, AMPI or Century Lithium Pro?

AMPI ships an update every 16 months, and Century Lithium Pro every 4 months. Most recently, AMPI was updated on October 29, 2026 and Century Lithium Pro on November 3, 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.*