# eFlow vs Cloud4UPS

The clearest difference is update cadence: eFlow at every 3 weeks against Cloud4UPS's every 10 months. eFlow also leads on iOS requirement (11 vs 13.0). 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.

eFlow ships an update every 3 weeks, Cloud4UPS every 10 months. Both last shipped on October 2, 2026.

## The numbers

| Metric | eFlow | Cloud4UPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/eflow/id1434703366/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 10 months |
| Monetization | Free | — |
| Size | 3 MB | 28 MB |
| Requires iOS | **11** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Savant Electronics Inc.](https://appshunter.io/developer/1288418213) | [Mega System Technologies Inc.](https://appshunter.io/developer/574376037) |

## What reviewers say

### eFlow

[App page](https://appshunter.io/ios/app/eflow/id1434703366)

Monitor the capacity of your water filters using a Bluetooth flow meter. Track multiple filters simultaneously to ensure optimal performance and timely replacements.

**Highlights:** Read water filter capacity via Bluetooth, Connect to Bluetooth flow meter, Monitor multiple water filters, Track filter performance

**Features:** macOS Compatibility

**In-app purchases:** none


### Cloud4UPS

[App page](https://appshunter.io/ios/app/cloud4ups/id1579441535)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eFlow free?

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

### Is Cloud4UPS free?

Cloud4UPS is free to download, with no in-app purchases.

### Do eFlow or Cloud4UPS have ads?

Neither eFlow nor Cloud4UPS shows ads.

### Which is updated more often, eFlow or Cloud4UPS?

eFlow ships an update every 3 weeks, and Cloud4UPS every 10 months. Most recently, eFlow was updated on October 2, 2026 and Cloud4UPS on October 2, 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.*