# OhmPlug vs ImpromptuPost

The clearest difference is update cadence: ImpromptuPost at every 3 weeks against OhmPlug'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.

OhmPlug ships an update every 3 months, ImpromptuPost every 3 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | OhmPlug | ImpromptuPost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (943 ratings)](https://appshunter.io/ios/app/ohmplug/id1550365163/reviews)** | — |
| Number of ratings | **943** | — |
| Positive reviews | 21.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 86 MB | 64 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OhmConnect, Inc](https://appshunter.io/developer/942076142) | [ImpromptuPost LLC](https://appshunter.io/developer/1702194938) |

## What reviewers say

### OhmPlug

[App page](https://appshunter.io/ios/app/ohmplug/id1550365163)

Control smart plugs remotely to save energy and add convenience. Automate your home with routines, voice commands, and group devices by room. Earn rewards for energy savings through an optional connected service.

**Highlights:** Remote appliance control, Voice control integration, Smart home routines, Device grouping by room, Energy saving alerts, Earn rewards for energy savings

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💰 Earn money for saving energy
- 🤑 Easy money
- 👍 Simple setup and use
- 🚀 Works flawlessly

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔌 Randomly turns off devices
- 🕰️ Inconsistent scheduling
- 🤖 Buggy app
- 🔍 Difficult to add new devices

**Reported bugs**

- Login/password reset issues
- App crashes when adding devices
- Devices randomly disconnect from WiFi
- Incompatible with 5GHz networks

**Requested features**

- Widget for on/off control
- Apple HomeKit integration
- Live power consumption stats
- Dusk-to-dawn timer setting


### ImpromptuPost

[App page](https://appshunter.io/ios/app/impromptupost/id6460935394)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is OhmPlug free?

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

### Is ImpromptuPost free?

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

### Do OhmPlug or ImpromptuPost have ads?

Neither OhmPlug nor ImpromptuPost shows ads.

### Which is updated more often, OhmPlug or ImpromptuPost?

OhmPlug ships an update every 3 months, and ImpromptuPost every 3 weeks. Most recently, OhmPlug was updated on October 14, 2026 and ImpromptuPost on October 3, 2026.

---

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