Comparison

Biifore vs WattEver (EV 배터리 인증서 발급 서비스)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Biifore

Monitor your electric vehicle's battery health proactively. Get a quick and accurate assessment of battery deterioration without needing to visit a service center. Regular use ensures more precise diagnostics for a greener and safer tomorrow.

Highlights
  • Proactive EV battery care
  • Fast, simple, accurate assessment
  • No service center visit required
  • Diagnoses within 1 minute after charging
  • Monitors current and future battery states
  • Uses patented HEI technology
Read full description

Biifore's very first version is available now! Greener Today, Safer Tomorrow! The battery, that can be analogized as the heart of an electric vehicle, also requires proper care for its health state. "Umm… it had a lot of lifetime left, but suddenly it seems to be decreasing. What’s going on?" "The charging capacity doesn't seem the same as before... Is something wrong?" "It still feels healthy, so why is its lifespan is indicated decreasing?" Even if you have doubts about your battery's condition, have you ever hesitated to ellaborate it due to the inconvenience and cost of a service center visit? Biifore, utilizing HEI's patented technology, provides a fast, simple, and accurate assessment of your EV battery deterioration, for both current and future states. You don’t need to visit a service center. Simply, just charge your EV as usual. You will receive a health diagnosis of your EV’s battery after charging. That’s it. No extra devices, processes, or energy consumption are needed. One thing to note. Use Biifore on a regular basis, for more accurate diagnostics! Required Permission: Location - Used to determine the user's current location in order to provide nearby charging station locations. Notifications - Required to provide calculation results after charging. Customer Support: Email: contact@thinkhei.com Phone: 070-4518-0541

About

WattEver (EV 배터리 인증서 발급 서비스)

Features
Read full description

중고 전기차 배터리 상태를 빠르고 정확하게 진단하고, 공신력 있는 인증서 발급까지 한 번에 처리할 수 있는 서비스입니다. 차량 등록부터 인증서 발급, 공유, 정산 관리까지. 딜러 업무에 필요한 모든 기능을 WattEver에서 제공합니다. [주요 기능] ■ 차량 관리 - 인증서 발급을 위한 차량 등록 및 정보 관리 ■ 인증서 발급 - OBD 기기 연결을 통한 배터리 진단 - SoH 기반의 배터리 상태 및 잔존 수명 등급 제공 ■ 인증서 검증(QR코드) - 인증서 링크 QR코드 제공 - 인증서 진위 여부 확인 가능 ■ 인증서 공유 - 문자/이메일 등을 통한 인증서 웹 링크 전송 ■ 리포트 & 정산 관리 - 월별 발급 건수 및 정산 요약 제공 - 실적 기반 등급 시스템 운영, 상세 리포트 제공 [이용 안내] ※ 본 서비스(WattEver)는 계약된 중고차 메인 딜러 및 해당 딜러에 소속된 사용자만 이용 가능합니다. - 소속 회사가 계약된 경우 : 소속 회사의 계약 여부를 확인하신 후, 발급받은 계약코드를 입력하여 회원가입을 진행해 주세요. - 소속 회사가 미계약된 경우 : 피엠그로우와 계약 체결 후, 발급받은 계약코드를 입력하여 회원가입을 진행해주세요. [고객 문의] 연락처 02-6232-2544 이메일 cs@pmgrow.co.kr

Screenshots

Biifore4 screens
WattEver (EV 배터리 인증서 발급 서비스)4 screens

Verdict

The call

The clearest difference is update cadence: WattEver (EV 배터리 인증서 발급 서비스) at every 5 days against Biifore's every 3 weeks. WattEver (EV 배터리 인증서 발급 서비스) also leads on iOS requirement (15.6 vs 18.6). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Biifore ships an update every 3 weeks, WattEver (EV 배터리 인증서 발급 서비스) every 5 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 7 level
Biifore versus WattEver (EV 배터리 인증서 발급 서비스): the parameters behind the verdict, then further details
ParameterBiiforeWattEver (EV 배터리 인증서 발급 서비스)
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.615.6 — better
Further details — not scored
Size79 MB57 MB
Age rating4+4+
DeveloperHEI Corp.PMGROW

In-app purchases

None

Biifore

No in-app purchases

None

WattEver (EV 배터리 인증서 발급 서비스)

No in-app purchases

Questions

Is Biifore free?
Biifore is free to download, with no in-app purchases.
Is WattEver (EV 배터리 인증서 발급 서비스) free?
WattEver (EV 배터리 인증서 발급 서비스) is free to download, with no in-app purchases.
Do Biifore or WattEver (EV 배터리 인증서 발급 서비스) have ads?
Neither Biifore nor WattEver (EV 배터리 인증서 발급 서비스) shows ads.
Which is updated more often, Biifore or WattEver (EV 배터리 인증서 발급 서비스)?
Biifore ships an update every 3 weeks, and WattEver (EV 배터리 인증서 발급 서비스) every 5 days. Most recently, Biifore was updated on October 24, 2026 and WattEver (EV 배터리 인증서 발급 서비스) on October 7, 2026.

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