# Possum vs TankLvlPro

The clearest difference is review sentiment: Possum at 100% against TankLvlPro's 8%. TankLvlPro's advantage is update cadence (every 4 weeks vs every 17 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.

Possum ships an update every 17 months, TankLvlPro every 4 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Possum | TankLvlPro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 34 MB | 23 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [THE TRUSTEE FOR KINCELTAGE FAMILY TRUST](https://appshunter.io/developer/1568978516) | [FULLY TANKED UP IP PTY LTD](https://appshunter.io/developer/1600221091) |

## What reviewers say

### Possum

[App page](https://appshunter.io/ios/app/possum/id1568978514)

This app assists with levelling caravans, camper trailers, and motorhomes using a Bluetooth device. It provides a simple visual interface to achieve perfect level, ensuring your fridge works correctly and you sleep comfortably. Installation is easy with no wiring required.

**Highlights:** Bluetooth caravan levelling, Visual levelling assistance, Ensures fridge functionality, Improves sleep comfort, Easy installation, Internal battery powered

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Possum free?

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

### Is TankLvlPro free?

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

### Do Possum or TankLvlPro have ads?

Neither Possum nor TankLvlPro shows ads.

### Which is updated more often, Possum or TankLvlPro?

Possum ships an update every 17 months, and TankLvlPro every 4 weeks. Most recently, Possum was updated on November 3, 2026 and TankLvlPro 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.*