# Mount Kelvin vs e

The clearest difference is update cadence: Mount Kelvin at every 2 weeks against e's every 3 months. 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.

Mount Kelvin ships an update every 2 weeks, e every 3 months. The most recent releases landed on September 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Mount Kelvin | e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Size | 11 MB | 39 MB |
| Requires iOS | **9.0** | 10.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mired Hill](https://appshunter.io/developer/1783816229) | [Fagerhults Belysning AB](https://appshunter.io/developer/428487342) |

## What reviewers say

### Mount Kelvin

[App page](https://appshunter.io/ios/app/mount-kelvin/id1055012111)

**Features:** macOS Compatibility

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-sense-flex/id6445810378)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mount Kelvin free?

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

### Is e free?

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

### Do Mount Kelvin or e have ads?

Neither Mount Kelvin nor e shows ads.

### Which is updated more often, Mount Kelvin or e?

Mount Kelvin ships an update every 2 weeks, and e every 3 months. Most recently, Mount Kelvin was updated on September 11, 2026 and e on September 19, 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.*