# Insomnia Explorer vs Advanced Physical Therapy

Insomnia Explorer and Advanced Physical Therapy are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Insomnia Explorer ships an update every 6 months, Advanced Physical Therapy every 12 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Insomnia Explorer | Advanced Physical Therapy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/insomnia-explorer/id1511781315/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 12 months |
| Monetization | Free | — |
| Size | 35 MB | 32 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Palo Alto Veterans Institute for Research](https://appshunter.io/developer/1292950620) | [Advanced Physical Therapy LLC](https://appshunter.io/developer/1643144930) |

## What reviewers say

### Insomnia Explorer

[App page](https://appshunter.io/ios/app/insomnia-explorer/id1511781315)

This research app is exclusively for participants in approved program evaluation projects. An invitation code from an approved investigator is required to unlock its features. Contact your investigator for assistance.

**Highlights:** Research-focused sleep evaluation, Requires invitation code, Exclusive program access, Investigator assistance available

**Features:** macOS Compatibility

**In-app purchases:** none


### Advanced Physical Therapy

[App page](https://appshunter.io/ios/app/advanced-physical-therapy/id1643144928)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Insomnia Explorer free?

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

### Is Advanced Physical Therapy free?

Advanced Physical Therapy is free to download, with no in-app purchases.

### Do Insomnia Explorer or Advanced Physical Therapy have ads?

Neither Insomnia Explorer nor Advanced Physical Therapy shows ads.

### Which is updated more often, Insomnia Explorer or Advanced Physical Therapy?

Insomnia Explorer ships an update every 6 months, and Advanced Physical Therapy every 12 months. Most recently, Insomnia Explorer was updated on November 3, 2026 and Advanced Physical Therapy on November 3, 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.*