# NFI App vs CSIA

The clearest difference is update cadence: CSIA at every 4 months against NFI App's every 31 months. NFI App's advantage is iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

NFI App ships an update every 31 months, CSIA every 4 months. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | NFI App | CSIA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (4 ratings)](https://appshunter.io/ios/app/nfi-app/id1275580753/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 29 MB | 37 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [John Hoover](https://appshunter.io/developer/1275580752) | [The Chimney Safety Institute of America](https://appshunter.io/developer/1478917352) |

## What reviewers say

### NFI App

[App page](https://appshunter.io/ios/app/nfi-app/id1275580753)

Access certification details, expiration dates, and CEU totals. Receive timely notifications for upcoming expirations. Includes tools for job site measurements and a notes section for licenses and to-dos.

**Highlights:** Certification number access, Expiration date tracking, CEU totals, Push notifications, Job site measurement formulas, Notes section

**Features:** macOS Compatibility

**In-app purchases:** none


### CSIA

[App page](https://appshunter.io/ios/app/csia/id1478917353)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NFI App free?

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

### Is CSIA free?

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

### Do NFI App or CSIA have ads?

Neither NFI App nor CSIA shows ads.

### Which is updated more often, NFI App or CSIA?

NFI App ships an update every 31 months, and CSIA every 4 months. Most recently, NFI App was updated on October 24, 2026 and CSIA on October 6, 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.*