Comparison

Onsite PMS vs BatteryManAI for EV

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

Head to head
About

Onsite PMS

Features
Read full description

A complete construction document management system that provides a collaborative project in the most user-friendly interfaces.

About

BatteryManAI for EV

Features
Read full description

BatteryManAI for EV – The Most Advanced EV Battery Health Prediction Model Worried about EV battery degradation? Just enter 3 numbers after every charge (battery % + current range + total mileage) and you get: 1. Complete battery & mileage logbook – export Excel + HD chart screenshots anytime, keep forever 2. Two professional trend charts: long-term full-charge range + true SOH decay curve (red warning line) 3. World’s only BHIT 20-year personalized prediction model – tells you the exact year your battery will drop to 70% (warranty red line). The more data, the more accurate. Exclusive Features β€’ Full battery & mileage logbook – export Excel spreadsheets and HD charts anytime, keep forever β€’ Instant battery health check – instantly see if degradation matches age & mileage. Must-have before buying a used EV β€’ Predicts exactly when you’ll hit the warranty threshold – 70% remaining capacity is the warranty line for most manufacturers (Tesla example: minimum 70% retention within 8 years) App Includes β€’ Battery & mileage logbook with one-tap Excel + HD chart export β€’ Long-term full-charge range trend chart β€’ Battery health (SOH) trend chart β€’ Exclusive BHIT model: Best / Average / Worst personalized 20-year curves + 95% confidence interval β€’ Precise prediction of when you’ll reach 70% SOH Other Highlights β€’ No ads, no subscription – one-time purchase, lifetime use β€’ Works with ALL BEVs (Tesla, GM/Chevy, Ford, Rivian, Lucid, Hyundai, Kia, BMW…any brand) β€’ km / miles toggle, Dark Mode, full multilingual support β€’ 100% local storage only – never uploaded, delete everything anytime Download BatteryManAI for EV today – Spot abnormal degradation early, know exactly how many years your battery has left, and say goodbye to battery anxiety forever!

Screenshots

Onsite PMS4 screens
BatteryManAI for EV4 screens

Verdict

The call

The clearest difference is price: Onsite PMS at Free against BatteryManAI for EV's $2.99. Onsite PMS also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Onsite PMS is free to download; BatteryManAI for EV costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Onsite PMS ships an update every 2 weeks, BatteryManAI for EV fortnightly. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

Scorecard3 real differences Β· 3 level
Onsite PMS versus BatteryManAI for EV: the parameters behind the verdict, then further details
ParameterOnsite PMSBatteryManAI for EV
PriceFree β€” better$2.99
Update frequencyEvery 2 weeks β€” betterFortnightly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.0 β€” better17.6
Further details β€” not scored
Size155 MB21 MB
Age rating17+4+
DeveloperONSITE SALCheng-Ta Yu

In-app purchases

None

Onsite PMS

No in-app purchases

None

BatteryManAI for EV

No in-app purchases

Questions

Is Onsite PMS free?
Onsite PMS is free to download, with no in-app purchases.
Is BatteryManAI for EV free?
BatteryManAI for EV costs $2.99, with no in-app purchases.
Do Onsite PMS or BatteryManAI for EV have ads?
Neither Onsite PMS nor BatteryManAI for EV shows ads.
Which is updated more often, Onsite PMS or BatteryManAI for EV?
Onsite PMS ships an update every 2 weeks, and BatteryManAI for EV fortnightly. Most recently, Onsite PMS was updated on November 7, 2026 and BatteryManAI for EV on November 8, 2026.

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