# LetsKeep vs SipAR | Hydration with Steps

The clearest difference is iOS requirement: LetsKeep at 12.0 against SipAR | Hydration with Steps's 18.0. 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.

## The numbers

| Metric | LetsKeep | SipAR | Hydration with Steps |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Size | 42 MB | 5 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [庆勇 张](https://appshunter.io/developer/1543126441) | [App Roots](https://appshunter.io/developer/1448680692) |

## What reviewers say

### LetsKeep

[App page](https://appshunter.io/ios/app/letskeep-habit-tracker/id1543128102)

**Features:** macOS Compatibility

**In-app purchases:** none


### SipAR | Hydration with Steps

[App page](https://appshunter.io/ios/app/sipar-hydration-with-steps/id6739961134)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LetsKeep free?

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

### Is SipAR | Hydration with Steps free?

SipAR | Hydration with Steps is free to download, with no in-app purchases.

### Do LetsKeep or SipAR | Hydration with Steps have ads?

Neither LetsKeep nor SipAR | Hydration with Steps shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*