# TankLvlPro vs Unlock Devonport

The clearest difference is iOS requirement: TankLvlPro at 13.0 against Unlock Devonport's 18.2. On price, update cadence, 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.

TankLvlPro ships an update every 3 weeks, Unlock Devonport fortnightly. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | TankLvlPro | Unlock Devonport |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 8.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 23 MB | 4 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FULLY TANKED UP IP PTY LTD](https://appshunter.io/developer/1600221091) | [Autech Software & Design](https://appshunter.io/developer/333199002) |

## What reviewers say

### TankLvlPro

[App page](https://appshunter.io/ios/app/tanklvlpro/id1600221089)

This app uses Bluetooth to monitor your rainwater tanks, providing real-time water levels and detecting leaks. It also estimates how long your water supply will last.

**Highlights:** Bluetooth tank monitoring, Accurate water level display, Leakage detection alerts, Estimated time to empty, Real-time data

**Features:** Vision Pro support

**In-app purchases:** none


### Unlock Devonport

[App page](https://appshunter.io/ios/app/unlock-devonport/id6742124095)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TankLvlPro free?

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

### Is Unlock Devonport free?

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

### Do TankLvlPro or Unlock Devonport have ads?

Neither TankLvlPro nor Unlock Devonport shows ads.

### Which is updated more often, TankLvlPro or Unlock Devonport?

TankLvlPro ships an update every 3 weeks, and Unlock Devonport fortnightly. Most recently, TankLvlPro was updated on October 20, 2026 and Unlock Devonport on October 18, 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.*