数据泄露防护 vs EV Battery Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
数据泄露防护
Read full descriptionHide full description
数据泄露防护移动终端,在方便移动办公的同时,保护企事业单位数据安全。用户可通过移动终端在线阅读加密文档,如查看OA系统上的加密文件或加密的邮件附件等,还可以进行审批,且审批消息实时推送,保证审批及时性,提高办公效率。
EV Battery Guide
Read full descriptionHide full description
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
数据泄露防护 and EV Battery Guide are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.
| Parameter | 数据泄露防护 | EV Battery Guide |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 19 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 96 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | 厦门天锐科技股份有限公司 | 何南 李 |
In-app purchases
数据泄露防护
No in-app purchases
EV Battery Guide
No in-app purchases









