# CalaWater vs Storage Post Technology

The clearest difference is ratings volume: CalaWater at 6 against Storage Post Technology's 2. On price, rating, update cadence and ads there is nothing between them.

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

Storage Post Technology holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

CalaWater ships an update every 2 weeks, Storage Post Technology monthly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CalaWater | Storage Post Technology |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/calawater/id6670616817/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/storage-post-technology/id6772297425/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 59 MB | 52 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cala Systems, Inc.](https://appshunter.io/developer/1736816264) | [Storage Post Technology](https://appshunter.io/developer/6772297427) |

## What reviewers say

### CalaWater

[App page](https://appshunter.io/ios/app/calawater/id6670616817)

Monitor and control your intelligent heat pump water heater remotely. Track usage, optimize heating schedules for solar production or vacation, and ensure hot water availability. Receive ongoing system updates for improved performance.

**Highlights:** Track hot water usage patterns, Sync heating with solar production, View energy usage, Boost production on demand, Schedule vacation energy savings, Monitor real-time availability and performance, Configure system run times

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Storage Post Technology

[App page](https://appshunter.io/ios/app/storage-post-technology/id6772297425)

This app offers a convenient, hands-free way to access your self-storage unit. It allows you to open gates and doors automatically as you approach, and provides easy communication with your facility. Track your activity and find nearby locations.

**Highlights:** Hands-free gate and door access, Direct facility communication, Activity log tracking, Self-storage facility search, Seamless gate opening

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CalaWater free?

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

### Is Storage Post Technology free?

Storage Post Technology is free to download, with no in-app purchases.

### Which has better reviews, CalaWater or Storage Post Technology?

Storage Post Technology is rated higher. CalaWater averages 4.8 out of 5 from 6 ratings, while Storage Post Technology averages 5.0 from 2 ratings.

### Do CalaWater or Storage Post Technology have ads?

Neither CalaWater nor Storage Post Technology shows ads.

### Which is updated more often, CalaWater or Storage Post Technology?

CalaWater ships an update every 2 weeks, and Storage Post Technology monthly. Most recently, CalaWater was updated on October 24, 2026 and Storage Post Technology on October 31, 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.*