# HUUM vs Penombra

The clearest difference is rating: Penombra at 5.0 against HUUM's 2.3. HUUM's advantage is ratings volume (30 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Penombra holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: HUUM has 30 ratings behind it against 2, so its average is the more settled of the two.

HUUM ships an update monthly, Penombra every 3 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HUUM | Penombra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (30 ratings)](https://appshunter.io/ios/app/huum/id896161044/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/penombra/id6766703276/reviews)** |
| Number of ratings | **30** | 2 |
| Positive reviews | 10.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 66 MB | 14 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [HUUM](https://appshunter.io/developer/896161047) | [Samuel James Nutty](https://appshunter.io/developer/1896316825) |

## What reviewers say

### HUUM

[App page](https://appshunter.io/ios/app/huum/id896161044)

Control your sauna remotely with this app. Schedule heating times and receive notifications when your sauna reaches the desired temperature, ensuring a perfectly heated experience upon arrival.

**Highlights:** Remote sauna heating, Scheduled heating times, Calendar bookings, Temperature notifications, Mobile control

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

**In-app purchases:** none

**What reviewers like**

- ✅ Basic functionality works when stable
- 🎯 Simple on/off controls
- 📱 Remote control capability (when functioning)
- ⏱️ Scheduling feature available
- 🌡️ Temperature adjustment possible

**What reviewers complain about**

- 🐛 Extremely unreliable and buggy
- ❌ Frequent app crashes and freezes
- 🔌 Constant WiFi connectivity issues
- ⏱️ Long response delays (2-3 minutes)
- 🌍 Random language switching problems

**Reported bugs**

- App randomly switches to Estonian/Finnish/Swedish
- Temperature control stops working after updates
- Scheduler/timer functionality broken
- Remote start feature randomly disables
- App won't open or becomes unresponsive

**Requested features**

- Apple Watch app support
- Dynamic Island integration
- Temperature reached notifications
- Ability to cancel/edit bookings
- Google Home/Alexa integration


### Penombra

[App page](https://appshunter.io/ios/app/penombra/id6766703276)

Explore stunning photography portfolios featuring natural landscapes and architectural spaces. Each image includes a field note with a story about its creation. Preview photos in AR, cast to a TV, and create printable zines.

**Highlights:** Curated galleries, Field notes with stories, AR print previews, Digital Frame mode, AirPlay casting, Visually similar photo suggestions, Printable PDF zines

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

**In-app purchases:** none


## Frequently asked questions

### Is HUUM free?

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

### Is Penombra free?

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

### Which has better reviews, HUUM or Penombra?

Penombra is rated higher. HUUM averages 2.3 out of 5 from 30 ratings, while Penombra averages 5.0 from 2 ratings.

### Do HUUM or Penombra have ads?

Neither HUUM nor Penombra shows ads.

### Which is updated more often, HUUM or Penombra?

HUUM ships an update monthly, and Penombra every 3 weeks. Most recently, HUUM was updated on November 1, 2026 and Penombra 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.*