034SPI vs EQT SMD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
034SPI
This app allows users to flash their car's ECU/TCU tunes, configure live data displays, and record data logs for analysis. It also provides diagnostic support tools like reading and clearing DTC codes.
- Flash ECU/TCU tunes
- Configure live data displays
- High-speed data logging
- Upload logs to server
- Read and clear DTCs
- View emissions monitor status
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Designed for use on iPhone/iOS as well as Apple Silicon-equipped laptops (M1, M2, M3), 034SPI allows you to easily flash your car, change fuel maps, configure live data displays, record and submit data logs to 034Motorsport's Tuning Support team, and utilize diagnostic support tools such as DTC/CEL code read/clear and more! Available now for use with any Dynamic+ ECU or TCU tune and the latest Dynamic+ End User Flashing Dongle (May 2023 & Newer)! Full App Features: Complete Any ECU Or TCU Tune flash Quickly Flash Different Fuel Octane Or Transmission Files Flash ECU/TCU Using Mobile Device's Internet Connection Enhanced Flashing Protocol Protections For Increased Flashing Stability User-Configurable Live Data Displays Dozens Of Defined Variables Available Multiple Display Types Available for Live Dt High-Speed Data Logging Of Pre-Defined Variables Easy Upload Of Logs To 034Motorsport Server Data Log Analysis Services Available Free Of Charge Read & Clear DTCs On ECU & TCU View Emissions Monitor Statuses Perform Adaptations/Recalibrations* Throttle Body Adaptation Fuel Tank Drain *Available for limited platforms, coverage expanding regularly
EQT SMD
This application allows users to flash ECUs and TCUs wirelessly, read and clear diagnostic trouble codes from engine and transmission modules, and perform datalogging with custom variable displays. Data can be automatically uploaded to a server for later analysis.
- Wireless ECU/TCU flashing
- Read/clear diagnostic trouble codes
- Mobile datalogging
- Custom datalogging variables
- Automatic data upload
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Application Features: Quickly flash to ECU/TCU using mobile device's internet connection Read and Clear Diagnostic Trouble Codes on ECM and TCM modules Execute datalogging from mobile device that can be automatically uploaded to EQT's Server Custom user-defined datalogging variables and displays.
Screenshots
Verdict
The clearest difference is review sentiment: EQT SMD at 100% against 034SPI's 55%. EQT SMD also leads on rating (5.0 vs 4.2) and update cadence (weekly vs every 2 weeks). 034SPI's advantage is ratings volume (43 vs 3). 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.
EQT SMD holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: 034SPI has 43 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 55% of 034SPI's written reviews are positive against 100% of EQT SMD's.
034SPI ships an update every 2 weeks, EQT SMD weekly. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.
| Parameter | 034SPI | EQT SMD |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (43 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 55.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 43 — better | 3 |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 126 MB | 126 MB |
| Age rating | 4+ | 4+ |
| Developer | 034Motorsport | Equilibrium Tuning |
Customer experience
034SPI
EQT SMD
In-app purchases
034SPI
No in-app purchases
EQT SMD
No in-app purchases
