# NFI App vs Spark Flex

The clearest difference is rating: Spark Flex at 4.7 against NFI App's 2.7. Spark Flex also leads on update cadence (fortnightly vs every 31 months) and ratings volume (257 vs 3). NFI App's advantage is review sentiment (33% vs 0%) and iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Spark Flex holds the better App Store score, 4.7 against 2.7. That said, the two scores are not equally well evidenced: Spark Flex has 257 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 33% of NFI App's written reviews are positive against 0% of Spark Flex's, so the app with the better star average is not the one people write more warmly about.

NFI App ships an update every 31 months, Spark Flex fortnightly. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | NFI App | Spark Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (3 ratings)](https://appshunter.io/ios/app/nfi-app/id1275580753/reviews) | **[4.7 (257 ratings)](https://appshunter.io/ios/app/spark-flex/id6636549024/reviews)** |
| Number of ratings | 3 | **257** |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 29 MB | 90 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [John Hoover](https://appshunter.io/developer/1275580752) | [Serveture](https://appshunter.io/developer/1083075641) |

## 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


### Spark Flex

[App page](https://appshunter.io/ios/app/spark-flex/id6636549024)

This app connects industrial professionals with job opportunities, offering direct hire, full-time, seasonal, and flex/gig work. It streamlines the onboarding process, allows easy access to paystubs and tax documents, and provides job notifications.

**Highlights:** Job notifications, Apply for jobs, View paystubs, Access tax documents, Communicate with recruiters

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

**In-app purchases:** none


## Frequently asked questions

### Is NFI App free?

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

### Is Spark Flex free?

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

### Which has better reviews, NFI App or Spark Flex?

Spark Flex is rated higher. NFI App averages 2.7 out of 5 from 3 ratings, while Spark Flex averages 4.7 from 257 ratings.

### Do NFI App or Spark Flex have ads?

Neither NFI App nor Spark Flex shows ads.

### Which is updated more often, NFI App or Spark Flex?

NFI App ships an update every 31 months, and Spark Flex fortnightly. Most recently, NFI App was updated on October 10, 2026 and Spark Flex on October 18, 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.*