# ShiftPower vs CDI Profire

The clearest difference is price: ShiftPower at Free against CDI Profire's $14.99. ShiftPower also leads on ratings volume (316 vs 1) and update cadence (every 2 weeks vs every 2 months). CDI Profire's advantage is ads (none vs shown) and review sentiment (100% vs 71%). On in-app purchases, device support and iOS requirement there is nothing between them.

ShiftPower is free to download; CDI Profire costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CDI Profire holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ShiftPower has 316 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of ShiftPower's written reviews are positive against 100% of CDI Profire's.

ShiftPower ships an update every 2 weeks, CDI Profire every 2 months. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | ShiftPower | CDI Profire |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | [4.8 (316 ratings)](https://appshunter.io/ios/app/shiftpower/id1473662284/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cdi-profire-x-pro/id6761718759/reviews)** |
| Number of ratings | **316** | 1 |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 109 MB | 51 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Faaftech Tecnologia Ltda](https://appshunter.io/developer/1473662283) | [Mult Scan Tecnologia Eletronica Mult Scan LTDA](https://appshunter.io/developer/1891078307) |

## What reviewers say

### ShiftPower

[App page](https://appshunter.io/ios/app/shiftpower/id1473662284)

Enhance your driving experience with customizable acceleration modes for sportier and safer performance. Control your vehicle's safety with dedicated Lock and Valet modes, offering over 300 acceleration response maps for a personalized feel.

**Highlights:** Four customizable driving modes, Lock and Valet safety modes, Over 300 acceleration response maps, Sportier and safer overtaking, Plug-and-Play installation

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### CDI Profire

[App page](https://appshunter.io/ios/app/cdi-profire-x-pro/id6761718759)

Configure, monitor, and adjust your CDI ProFire X ignition module in real-time via Bluetooth. Optimize engine performance with features like programmable cut-off, RPM limiter, and ignition advance adjustments. View real-time data like speed, RPM, and battery voltage.

**Highlights:** Real-time configuration via Bluetooth, Engine performance monitoring (speed, RPM, voltage), Programmable cut-off and RPM limiter, Ignition advance adjustment, Ignition advance graph visualization, Customizable visual indicators

**In-app purchases:** none


## Frequently asked questions

### Is ShiftPower free?

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

### Is CDI Profire free?

CDI Profire costs $14.99, with no in-app purchases.

### Which has better reviews, ShiftPower or CDI Profire?

CDI Profire is rated higher. ShiftPower averages 4.8 out of 5 from 316 ratings, while CDI Profire averages 5.0 from 1 ratings.

### Do ShiftPower or CDI Profire have ads?

ShiftPower shows ads; CDI Profire does not.

### Which is updated more often, ShiftPower or CDI Profire?

ShiftPower ships an update every 2 weeks, and CDI Profire every 2 months. Most recently, ShiftPower was updated on September 22, 2026 and CDI Profire on September 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*