# SAJ vs Fi2000

The clearest difference is iOS requirement: SAJ at 10.0 against Fi2000's 14.7. On price, update cadence, ads and in-app purchases there is nothing between them.

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

SAJ ships an update every 12 months, Fi2000 every 8 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | SAJ | Fi2000 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/fi2000/id6449746293/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 8 months** |
| Monetization | — | Free |
| Size | 69 MB | 22 MB |
| Requires iOS | **10.0** | 14.7 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAJ Instrument Ab](https://appshunter.io/developer/962246290) | [Bryan Bench](https://appshunter.io/developer/1690364690) |

## What reviewers say

### SAJ

[App page](https://appshunter.io/ios/app/saj-dms-mobile/id962279584)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fi2000

[App page](https://appshunter.io/ios/app/fi2000/id6449746293)

Control your motorcycle's fuel injection system with this app. Monitor RPM, adjust fuel delivery, and evaluate injector duty cycle in real-time for optimal performance. Requires pairing with a compatible tuner and motorcycle.

**Highlights:** Real-time RPM monitoring, Fuel adjustment (add/remove), Injector duty cycle evaluation, Module pairing, Maximum efficiency assessment

**In-app purchases:** none


## Frequently asked questions

### Is SAJ free?

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

### Is Fi2000 free?

Fi2000 is free to download, with no in-app purchases.

### Do SAJ or Fi2000 have ads?

Neither SAJ nor Fi2000 shows ads.

### Which is updated more often, SAJ or Fi2000?

SAJ ships an update every 12 months, and Fi2000 every 8 months. Most recently, SAJ was updated on October 7, 2026 and Fi2000 on October 7, 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.*