# Guests Check vs TankPlanH2O

The clearest difference is update cadence: TankPlanH2O at every 2 weeks against Guests Check's every 6 weeks. TankPlanH2O also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Guests Check ships an update every 6 weeks, TankPlanH2O every 2 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Guests Check | TankPlanH2O |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Size | 3 MB | 3 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GUESTS CHECK LLC](https://appshunter.io/developer/1153372018) | [Chaoticfox LLC](https://appshunter.io/developer/1554581984) |

## What reviewers say

### Guests Check

[App page](https://appshunter.io/ios/app/guests-check/id1153372019)

**Features:** macOS Compatibility

**In-app purchases:** none


### TankPlanH2O

[App page](https://appshunter.io/ios/app/tankplanh2o/id6503006578)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Guests Check free?

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

### Is TankPlanH2O free?

TankPlanH2O is free to download, with no in-app purchases.

### Do Guests Check or TankPlanH2O have ads?

Neither Guests Check nor TankPlanH2O shows ads.

### Which is updated more often, Guests Check or TankPlanH2O?

Guests Check ships an update every 6 weeks, and TankPlanH2O every 2 weeks. Most recently, Guests Check was updated on October 26, 2026 and TankPlanH2O on October 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.*