# Propane Plus vs Tank Exchange

The clearest difference is update cadence: Tank Exchange at monthly against Propane Plus's every 27 months. Propane Plus's advantage is iOS requirement (12.2 vs 15.1). 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.

Propane Plus ships an update every 27 months, Tank Exchange monthly. The most recent releases landed on October 11, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Propane Plus | Tank Exchange |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Monthly** |
| Size | 46 MB | 62 MB |
| Requires iOS | **12.2** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Silverline Solutions](https://appshunter.io/developer/1453561976) | [Tank Exchange Inc.](https://appshunter.io/developer/1527533482) |

## What reviewers say

### Propane Plus

[App page](https://appshunter.io/ios/app/propane-plus/id6470220233)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tank Exchange

[App page](https://appshunter.io/ios/app/tank-exchange/id6757363282)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Propane Plus free?

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

### Is Tank Exchange free?

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

### Do Propane Plus or Tank Exchange have ads?

Neither Propane Plus nor Tank Exchange shows ads.

### Which is updated more often, Propane Plus or Tank Exchange?

Propane Plus ships an update every 27 months, and Tank Exchange monthly. Most recently, Propane Plus was updated on October 11, 2026 and Tank Exchange on September 27, 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.*