EZ vs TTS Tuning
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EZ
Control your vehicle's transmission settings wirelessly from your iOS device. Adjust shift points, firmness, and aggressiveness with intuitive data logging and self-diagnostics. Includes an anti-theft feature for remote vehicle disabling.
- Wireless transmission control via Bluetooth
- Adjust shift points, firmness, and aggressiveness
- Data logging and self-diagnostics
- Remote anti-theft vehicle disabling
- No laptop or software required
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TCI® EZ-TCU™ Transmission Controller users can now tune their transmission via iOS devices. A wireless module enables Bluetooth communication between the EZ-TCU™ and an iOS app, enabling the user to control shift points, firmness and aggressiveness. Data logging and self-diagnostics make it possible to optimize tuning intuitively – without the need for software, a hand-held unit or cabling. There is also an anti-theft feature that allows for remote disabling of the vehicle. Features & Benefits: · Easy transmission control from your phone or tablet; no laptop or software needed · Maximum electronic control over the shift points, shift firmness and shift aggressiveness · Data logging and self-diagnostics for optimal tuning · Anti-theft feature for disabling vehicle through app · Compatible with 4L60E, 4L65E, 4L70E, 4L80E, 4L85E and TCI® 4x & 6x transmissions
TTS Tuning
This advanced tool enables automotive professionals and enthusiasts to upgrade vehicle hardware and firmware. It connects to a vehicle's interface via an enet adapter cable, simplifying performance enhancements and ensuring compatibility with the latest technology. Robust security features protect data and vehicle stability during upgrades.
- Connects via enet adapter cable
- Firmware upgrades
- User-friendly interface
- Detailed upgrade guidance
- Troubleshooting support
- Robust security features
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"TTS Tuning is an advanced automotive hardware upgrading tool, designed specifically for vehicle maintenance professionals and automotive enthusiasts. Utilizing an enet adapter cable, this software can connect to the vehicle's hardware interface, facilitating efficient and secure firmware upgrades. Whether aiming to enhance vehicle performance or ensure compatibility with the latest technological standards, TTS Tuning provides a first-rate solution. Key features of the software include: A user-friendly interface that simplifies the upgrade process, making operations more intuitive. Detailed upgrade guidance and troubleshooting support to ensure a smooth upgrade process. Robust security features to ensure the safety of data and stability of the vehicle during upgrades. Whether you are a technician at an auto repair shop or an automotive modification enthusiast, TTS Tuning is the ideal choice for enhancing vehicle performance and maintaining automotive safety."
Screenshots
Verdict
The clearest difference is rating: TTS Tuning at 5.0 against EZ's 3.9. EZ's advantage is update cadence (monthly vs every 2 months) and ratings volume (7 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TTS Tuning holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: EZ has 7 ratings behind it against 1, so its average is the more settled of the two.
EZ ships an update monthly, TTS Tuning every 2 months. Both last shipped on October 24, 2026.
| Parameter | EZ | TTS Tuning |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 11 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Performance Electronics | Huan Ma |
Customer experience
EZ
TTS Tuning
In-app purchases
EZ
No in-app purchases
TTS Tuning
No in-app purchases









