# Stratos vs IFC Viewer

The clearest difference is review sentiment: Stratos at 100% against IFC Viewer's 46%. Stratos also leads on price (Free vs $2.99) and rating (4.3 vs 1.0). IFC Viewer's advantage is ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). On in-app purchases, device support and iOS requirement there is nothing between them.

Stratos is free to download; IFC Viewer costs $2.99 up front. Stratos sells 7 in-app purchases, starting at $6.99 per month and IFC Viewer sells 12 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Stratos holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Stratos has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Stratos's written reviews are positive against 46% of IFC Viewer's.

Stratos ships an update every 3 weeks, IFC Viewer every 2 days. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Stratos | IFC Viewer |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/stratos/id6476514857/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/ifc-viewer/id6758959860/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | **100.0% of reviews** | 46.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 47 MB | 95 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [STRATOS AVIATION LLC](https://appshunter.io/developer/1726956086) | [Jamie Ward](https://appshunter.io/developer/1870821825) |

## What reviewers say

### Stratos

[App page](https://appshunter.io/ios/app/stratos/id6476514857)

Discover new airports, log your flights, and connect with fellow pilots. This app offers interactive maps, flight tracking, performance stats, and a community feed for aviation enthusiasts.

**Highlights:** Interactive airport map, Flight logging and tracking, Pilot performance stats, Community feed, Airport discovery with filters, Flight journals and debriefing

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $6.99 | per month |
| Stratos Pro | $9.99 | per year |
| Pro | $34.99 | per 6 months |
| Pro | $59.99 | per year |
| 5 Historical Flight Credits | $3.99 | one-time |
| 10 Historical Flight Credits | $5.99 | one-time |
| 20 Historical Flight Credits | $9.99 | one-time |


### IFC Viewer

[App page](https://appshunter.io/ios/app/ifc-viewer/id6758959860)

Access and explore Building Information Modeling (BIM) data on your mobile device. Navigate 3D models, inspect element details, and search for specific components. Export data for further analysis.

**Highlights:** View IFC models in 3D, Spatial tree browsing, Inspect element properties, Search by name, type, or ID, Selection tools, Export data to CSV/Excel

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IFC BCF Issue Tracker | $1.99 | one-time |
| IFC Federator | $1.99 | one-time |
| IFC COBie Reporter | $1.99 | one-time |
| IFC IDS Validator | $1.99 | one-time |
| IFC Model Compare | $1.99 | one-time |
| IFC IDS Creator | $1.99 | one-time |
| IFC Query Studio | $1.99 | one-time |
| IFC QA Reporter | $1.99 | one-time |
| IFC AI Data Compliance | $1.99 | one-time |
| IFC COBie Updater | $1.99 | one-time |
| Clash Detection | $2.99 | one-time |
| Unlock All Pro Tools | $24.99 | one-time |


## Frequently asked questions

### Is Stratos free?

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

### Is IFC Viewer free?

IFC Viewer costs $2.99, and also offers in-app purchases.

### Which has better reviews, Stratos or IFC Viewer?

Stratos is rated higher. Stratos averages 4.3 out of 5 from 6 ratings, while IFC Viewer averages 1.0 from 1 ratings.

### Do Stratos or IFC Viewer have ads?

Stratos shows ads; IFC Viewer does not.

### Which is updated more often, Stratos or IFC Viewer?

Stratos ships an update every 3 weeks, and IFC Viewer every 2 days. Most recently, Stratos was updated on October 13, 2026 and IFC Viewer on October 25, 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.*