TurboTune vs EV Battery Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TurboTune
This app enhances your driving by generating responsive engine sounds that match your car's real-time RPM data. It provides a visual tachometer and allows you to balance engine audio with your music for a more immersive experience. Requires companion hardware.
- Real-time RPM data
- Responsive engine sound
- Tachometer display
- Adjustable audio balance
- Simple hardware connection
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TurboTune is the companion app for the TurboTune device, designed to transform your driving experience. When connected to your TurboTune hardware through your car’s OBD2 port, the app reads live RPM data and uses it to generate responsive engine sound that matches how your car is actually driving. Acceleration, revving, and cruising are reflected instantly, creating a more engaging and immersive feel behind the wheel. The app also features a tachometer-style display, giving you a clear visual of your engine’s behavior while you drive. You can adjust the balance between engine sound and your music, allowing you to customize the experience to your preference. Setup is simple: plug in the TurboTune device, connect through the app, and start driving. Features: • Real-time RPM data from your vehicle • Responsive engine sound based on live driving input • Tachometer-style visual display • Adjustable engine and music audio balance • Simple connection with TurboTune hardware TurboTune hardware required. Vehicle compatibility may vary.
EV Battery Guide
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EV Battery Guide is an independent educational tool for EV owners — built to help you actually understand the battery in your car. What's inside: • Open-Circuit Voltage (OCV) vs SOC curves — see your battery's true voltage behavior • DC fast-charging power curves — understand the CC→CV transition and why it slows down • BMS buffer visualization — your "100%" isn't really 100% • Capacity retention prediction — how much will be left in 5 or 10 years? • Cycle life vs depth-of-discharge — why shallow cycling lasts longer • Lithium plating risk heatmap — what to watch out for in cold weather • Winter range loss waterfall — where exactly does the range go? • Speed × temperature energy matrix — the dual cost of highway and cold • Cost-per-mile comparison — home charging, fast charging, and gas • 13 interactive professional charts — built on public cell datasets Coverage: 65 popular EV configurations across 7 distinct cell chemistries (LFP / NCA 2170 / NCA 18650 / 4680 / NMC / LiCoO₂), with chemistry-specific recommendations for each. Three languages: Full support for English, 中文, and 日本語. Switch anytime in-app. Privacy first: • No accounts, no email • No user data collection • No third-party analytics or ad SDKs • Your selected vehicle and language preference live only on this device Completely free: No subscriptions, no in-app purchases, no ads. All features are open from day one. Disclaimer: This app is not affiliated with any vehicle manufacturer. Vehicle model names are used solely to describe battery chemistry, parameters, and charging characteristics — a nominative fair use. All data is sourced from public cell data sheets, EPA filings, and peer-reviewed research.
Screenshots
Verdict
The clearest difference is device support: EV Battery Guide at 3 against TurboTune's 1. On price, ads, in-app purchases and iOS requirement 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.
| Parameter | TurboTune | EV Battery Guide |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 5 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 23 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Jacob Richards | 何南 李 |
In-app purchases
TurboTune
No in-app purchases
EV Battery Guide
No in-app purchases









