# PSiO vs SensoLight

The clearest difference is in-app purchases: PSiO at none against SensoLight's 5. PSiO also leads on iOS requirement (9.0 vs 15.6). SensoLight's advantage is update cadence (every 3 months vs every 11 months). On price, ads and device support there is nothing between them.

Both are free to download. SensoLight sells 5 one-off in-app purchases. PSiO asks for nothing beyond the download.

PSiO ships an update every 11 months, SensoLight every 3 months. The most recent releases landed on September 16, 2026 and August 21, 2026 respectively.

## The numbers

| Metric | PSiO | SensoLight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/sensolight/id1455586774/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 13 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Psychomed.com SA](https://appshunter.io/developer/1318018249) | [Sensortech Inc.](https://appshunter.io/developer/984957166) |

## What reviewers say

### PSiO

[App page](https://appshunter.io/ios/app/psio/id1318018250)

**Features:** macOS Compatibility

**In-app purchases:** none


### SensoLight

[App page](https://appshunter.io/ios/app/sensolight/id1455586774)

Control your smart mood light with this app. Set custom colors, use sleep timers to dim the light, and wake up gently with simulated dawn. Unlock advanced features through in-app purchases.

**Highlights:** Color mode selection, Sleep timer, Wake up timer with dawn simulation, In-app upgrades for advanced features, Night light functionality

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EVENING COLOUR MODE | $6.99 | one-time |
| GAMMA COLOR MODE | $6.99 | one-time |
| BRAINWAVES LAB | $8.99 | one-time |
| PSYCHEDELIC COLOUR MODE | $8.99 | one-time |
| COLOUR MODES BUNDLE | $11.99 | one-time |


## Frequently asked questions

### Is PSiO free?

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

### Is SensoLight free?

SensoLight is free to download, with in-app purchases available.

### Do PSiO or SensoLight have ads?

Neither PSiO nor SensoLight shows ads.

### Which is updated more often, PSiO or SensoLight?

PSiO ships an update every 11 months, and SensoLight every 3 months. Most recently, PSiO was updated on September 16, 2026 and SensoLight on August 21, 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.*