# INVICTA Lithium vs ENGEL Fridge

The clearest difference is review sentiment: INVICTA Lithium at 100% against ENGEL Fridge's 0%. INVICTA Lithium also leads on iOS requirement (10.0 vs 17.0). ENGEL Fridge's advantage is update cadence (every 5 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

INVICTA Lithium ships an update every 3 months, ENGEL Fridge every 5 weeks. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | INVICTA Lithium | ENGEL Fridge |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 14 MB | 16 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SPB SealedPerformanceBatteries](https://appshunter.io/developer/1196313654) | [Suzhou Seitek Co., Ltd](https://appshunter.io/developer/1329632169) |

## What reviewers say

### INVICTA Lithium

[App page](https://appshunter.io/ios/app/invicta-lithium/id1196313655)

Monitor your lithium battery's details via Bluetooth connection. Check real-time battery status to understand its condition and receive timely reminders. This utility tool provides essential battery insights for your device.

**Highlights:** Monitor battery details, Bluetooth connection, Check battery status, Receive reminders, Utility tool

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

**In-app purchases:** none


### ENGEL Fridge

[App page](https://appshunter.io/ios/app/engel-fridge/id1534965928)

Control and monitor your smart refrigerator remotely. Adjust temperature settings, view status, and receive alerts for your appliance from your mobile device.

**Highlights:** Remote temperature adjustment, Appliance status monitoring, Alert notifications, Smart refrigerator control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is INVICTA Lithium free?

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

### Is ENGEL Fridge free?

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

### Do INVICTA Lithium or ENGEL Fridge have ads?

Neither INVICTA Lithium nor ENGEL Fridge shows ads.

### Which is updated more often, INVICTA Lithium or ENGEL Fridge?

INVICTA Lithium ships an update every 3 months, and ENGEL Fridge every 5 weeks. Most recently, INVICTA Lithium was updated on October 8, 2026 and ENGEL Fridge on October 24, 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.*