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Comparison

HAIDI vs SKEV40

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

Head to head
HAIDI
HAIDI

HAIDI

Free
๐Ÿ”ง Utilities
No ratingsView app โ†’
SKEV40
SKEV40
Free
๐Ÿ”ง Utilities
No ratingsView app โ†’
About

HAIDI

Features
Read full description

This App is for the 12V lithium battery (LiFePO4). Get real-time battery information using this app. FEATURES: Works with Bluetooth 4.0 or higher Monitors state of charge, cycles, current, voltage, temperature, capacity, average time to empty and average time to full.

About

SKEV40

Features
Read full description

This APP is only for Southking Smart EV Charging Station equipment. The SK-EV40 wallbox comes with a standard IEC62196/ SAE J1772 connector that can charge any EV. Use this mobile app to request access to chargers and start and stop charging sessions. SK-EV40 Wallbox provides the features as follow: -EV charging compatible with any EV -Remote controlling and managing charging on the mobile phone -Remote monitoring the charging data, observing the real time charging status of the smart charging -Set charging time or timer are both available -RFID function

Screenshots

HAIDI3 screens
SKEV404 screens

Verdict

The call

The clearest difference is update cadence: SKEV40 at every 3 weeks against HAIDI's every 32 months. SKEV40 also leads on iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

HAIDI ships an update every 32 months, SKEV40 every 3 weeks. Both last shipped on October 27, 2026.

Scorecard2 real differences ยท 4 level
HAIDI versus SKEV40: the parameters behind the verdict, then further details
ParameterHAIDISKEV40
PriceFreeFree
Update frequencyEvery 32 monthsEvery 3 weeks โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS14.011.0 โ€” better
Further details โ€” not scored
Size11 MB22 MB
Age rating17+17+
DeveloperSHENZHEN SMARTEC TECHNOLOGY COMPANY LIMITEDๆทฑๅœณๅธ‚ๅ—้œธ็ง‘ๆŠ€ๆœ‰้™ๅ…ฌๅธ

In-app purchases

None

HAIDI

No in-app purchases

None

SKEV40

No in-app purchases

Questions

Is HAIDI free?
HAIDI is free to download, with no in-app purchases.
Is SKEV40 free?
SKEV40 is free to download, with no in-app purchases.
Do HAIDI or SKEV40 have ads?
Neither HAIDI nor SKEV40 shows ads.
Which is updated more often, HAIDI or SKEV40?
HAIDI ships an update every 32 months, and SKEV40 every 3 weeks. Most recently, HAIDI was updated on October 27, 2026 and SKEV40 on October 27, 2026.

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