# Smiloscopy vs PFT Spirometry

The clearest difference is in-app purchases: Smiloscopy at none against PFT Spirometry's 2. Smiloscopy also leads on iOS requirement (15.0 vs 18). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PFT Spirometry sells 2 in-app purchases, starting at $7.99 per month. Smiloscopy asks for nothing beyond the download.

Smiloscopy ships an update every 3 weeks, PFT Spirometry every 2 weeks. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Smiloscopy | PFT Spirometry |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 143 MB | 8 MB |
| Requires iOS | **15.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Genuine Smile Simulator GbR](https://appshunter.io/developer/1804942601) | [ABHISHEK KUMAR](https://appshunter.io/developer/1877547879) |

## What reviewers say

### Smiloscopy

[App page](https://appshunter.io/ios/app/smiloscopy/id6743859420)

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

**In-app purchases:** none


### PFT Spirometry

[App page](https://appshunter.io/ios/app/pft-spirometry/id6787568741)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PFT Premium Monthly | $7.99 | per month |
| PFT Premium Yearly | $79.99 | per year |


## Frequently asked questions

### Is Smiloscopy free?

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

### Is PFT Spirometry free?

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

### Do Smiloscopy or PFT Spirometry have ads?

Neither Smiloscopy nor PFT Spirometry shows ads.

### Which is updated more often, Smiloscopy or PFT Spirometry?

Smiloscopy ships an update every 3 weeks, and PFT Spirometry every 2 weeks. Most recently, Smiloscopy was updated on September 20, 2026 and PFT Spirometry on September 12, 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.*