# F Numbers vs ListAIse

The clearest difference is in-app purchases: F Numbers at none against ListAIse's 2. F Numbers also leads on iOS requirement (13.0 vs 16.0). ListAIse's advantage is update cadence (every 8 days vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. ListAIse sells 2 in-app purchases, starting at $1.99 per month. F Numbers asks for nothing beyond the download.

F Numbers ships an update every 13 months, ListAIse every 8 days. The most recent releases landed on September 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | F Numbers | ListAIse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/f-numbers/id929309069/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 15 MB | 169 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) | [Syed Raza Abbas Naqvi](https://appshunter.io/developer/1808845257) |

## What reviewers say

### F Numbers

[App page](https://appshunter.io/ios/app/f-numbers/id929309069)

Quickly find filler metal groupings for welding procedures and performance qualifications. Access classifications with descriptions of intended use, based on ASME and AWS standards.

**Highlights:** Filler metal grouping lookup, Welding procedure qualification, Performance qualification data, Classification descriptions, ASME Section IX data, AWS standards data

**Features:** macOS Compatibility

**In-app purchases:** none


### ListAIse

[App page](https://appshunter.io/ios/app/listaise/id6745316778)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ListAIse Premium Monthly | $1.99 | per month |
| ListAIse Premium Yearly | $19.99 | per year |


## Frequently asked questions

### Is F Numbers free?

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

### Is ListAIse free?

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

### Do F Numbers or ListAIse have ads?

Neither F Numbers nor ListAIse shows ads.

### Which is updated more often, F Numbers or ListAIse?

F Numbers ships an update every 13 months, and ListAIse every 8 days. Most recently, F Numbers was updated on September 15, 2026 and ListAIse on October 14, 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.*