YOOZI EV vs Spiral Engineering
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YOOZI EV
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Detailed description: 'YOOZI EV' is an intelligent charging service platform carefully launched by Shenzhen Yingli Technology Co., Ltd. for users, providing a variety of intelligent charging selection functions for car owners, such as intelligent pile finding, household Bluetooth pile scanning charging, intelligent reservation charging, and so on. Function Introduction Intelligent pile finding: Display the charging station within ten kilometers of the personal location, and use a one click map navigation to reach the power station location. Multiple charging options: scan code charging, swipe card charging, household Bluetooth scan code charging, Bluetooth appointment and other charging methods. Contact Us Welcome to our official website to learn more: https://www.ying-power.com/ If you are seeking cooperation, please send your contact information to your email, and we will contact you as soon as possible: 15875572431@163.com
Spiral Engineering
This utility app allows for firmware over-the-air updates and professional parameter adjustments for connected devices. Users can fine-tune settings such as PWM, high and low trim, fading time, and auto brightness levels.
- Firmware OTA updates
- Professional parameter setting
- PWM adjustment
- High and low trim control
- Fading time configuration
- Auto brightness level setting
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Litetrace Engineering App based on User's App adding firmware OTA and Professional parameter setting like PWM, high and low trim, fading time, auto brightness level
Screenshots
Verdict
YOOZI EV and Spiral Engineering are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
YOOZI EV ships an update every 2 months, Spiral Engineering every 5 weeks. The most recent releases landed on May 16, 2026 and July 7, 2026 respectively.
| Parameter | YOOZI EV | Spiral Engineering |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 43 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Yingli technology Co.,Ltd | Litetrace Inc |
In-app purchases
YOOZI EV
No in-app purchases
Spiral Engineering
No in-app purchases
