# EASY FI vs addSound

The clearest difference is in-app purchases: addSound at none against EASY FI's 8. addSound also leads on update cadence (every 2 months vs every 4 months). EASY FI's advantage is iOS requirement (9.0 vs 12.2). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. EASY FI sells 8 one-off in-app purchases. addSound asks for nothing beyond the download.

EASY FI ships an update every 4 months, addSound every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | EASY FI | addSound |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 75 MB |
| Requires iOS | **9.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DILTS JAPAN, LIMITED LIABILITY CO.](https://appshunter.io/developer/780416956) | [Aogochi Inc.](https://appshunter.io/developer/1528156418) |

## What reviewers say

### EASY FI

[App page](https://appshunter.io/ios/app/easy-fi-con-type-x/id1384861887)

This application allows for the adjustment of ignition timing and fuel injection settings for specific motorcycle models. It offers preset data, real-time monitoring, and advanced tuning capabilities for enhanced engine performance. Requires a compatible device to unlock full functionality.

**Highlights:** Ignition timing adjustment, Fuel injection mapping, Real-time engine monitoring, Preset data loading, 3D map visualization, Dual map switching, Digital acceleration pump

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MONKEY125 JB02 | $3.99 | one-time |
| Z125 Pro | $3.99 | one-time |
| HUNTER CUB CT125 JA65 | $3.99 | one-time |
| GROM JC61/JC76 | $3.99 | one-time |
| GROM 8BJ-JC92 | $3.99 | one-time |
| MONKEY125 JB03/JB05 | $3.99 | one-time |
| DAX125 JB04/JB06 | $3.99 | one-time |
| CROSS CUB CC110 JA60 | $3.99 | one-time |


### addSound

[App page](https://appshunter.io/ios/app/addsound/id1528156416)

Customize your audio experience with adjustable volume, tap sensitivity, and sound effects. Manage device power and update firmware. Access FAQs for support.

**Highlights:** Automatic volume adjustment, Tap sensitivity settings, Automatic power-off, Sound expansion and clarity, Firmware updates, FAQ access

**In-app purchases:** none


## Frequently asked questions

### Is EASY FI free?

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

### Is addSound free?

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

### Do EASY FI or addSound have ads?

Neither EASY FI nor addSound shows ads.

### Which is updated more often, EASY FI or addSound?

EASY FI ships an update every 4 months, and addSound every 2 months. Most recently, EASY FI was updated on November 2, 2026 and addSound on November 3, 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.*