Comparison

CZI Sound vs EV Station Load Sizing

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

Head to head
About

CZI Sound

Features
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CZI Sound processes the audio source files (TTS, recordings, mixed audio) with a loudness-enhancing algorithm and then uploads them to the shoutbox via Bluetooth. It can also push the latest broadcast content of firmware and industry applications, ground proximity control of the shoutbox to play songs, etc.

About

EV Station Load Sizing

Features
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The electrical designer's sizing tool for commercial EV charging sites โ€” chargers to transformer in one honest screen. Add charger groups (7.4, 11, 22 kW AC ยท 50, 150, 350 kW DC fast, or any custom rating), apply a diversity factor you control, pick the supply (230 V 1ฯ† ยท 400 V 3ฯ† ยท 480 V 3ฯ†, adjustable power factor) and read the results instantly: connected load, expected demand in kW and kVA, feeder current with the ร—1.25 continuous-load design value (NEC 625.41), and the next standard transformer size from the ANSI/IEEE C57.12.00 ladder at โ‰ค 80% loading. Planning a capped connection? Set the site power limit and see the equal-split power each charger gets under load management (ALM/EVEMS, NEC 625.42). PRO โ€ข Unlimited chargers and groups (free sizes up to 2 devices) โ€ข Site-cap load sharing with per-charger power โ€ข Transformer sizing: required kVA, standard unit, loading verdict โ€ข Save site assessments to history โ€ข Clean one-page PDF reports with the full assumptions list โ€” ready for the project folder Built for the field: big controls, huge results, Outdoor Bright mode for direct sunlight. Everything stays on your phone โ€” fully offline, no account, no tracking. Diversity is an assumption: results are planning estimates and require engineered project approval. โ€”โ€”โ€” Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hdappstudio.com/evstationload/privacy/

Screenshots

CZI Sound4 screens
EV Station Load Sizing4 screens

Verdict

The call

The clearest difference is in-app purchases: CZI Sound at none against EV Station Load Sizing's 3. CZI Sound also leads on iOS requirement (13.0 vs 16.0). EV Station Load Sizing's advantage is update cadence (every 2 months vs every 8 months). On price, ads 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. EV Station Load Sizing sells 3 in-app purchases, starting at $2.99 per month. CZI Sound asks for nothing beyond the download.

UpkeepUpdate frequency

CZI Sound ships an update every 8 months, EV Station Load Sizing every 2 months. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

Scorecard3 real differences ยท 3 level
CZI Sound versus EV Station Load Sizing: the parameters behind the verdict, then further details
ParameterCZI SoundEV Station Load Sizing
PriceFreeFree
Update frequencyEvery 8 monthsEvery 2 months โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.0 โ€” better16.0
Further details โ€” not scored
Size64 MB9 MB
Age rating4+4+
DeveloperGuangzhou Chengzhi Intelligent Machine Technology Co., Ltd.HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI

In-app purchases

None

CZI Sound

No in-app purchases

3 purchases

EV Station Load Sizing

Subscriptions2
  • EV Station Pro โ€” Monthly$2.991 Month
  • EV Station Pro โ€” Yearly$14.991 Year
One-time1
  • EV Station Pro โ€” Lifetime$29.99

Questions

Is CZI Sound free?
CZI Sound is free to download, with no in-app purchases.
Is EV Station Load Sizing free?
EV Station Load Sizing is free to download, with in-app purchases available.
Do CZI Sound or EV Station Load Sizing have ads?
Neither CZI Sound nor EV Station Load Sizing shows ads.
Which is updated more often, CZI Sound or EV Station Load Sizing?
CZI Sound ships an update every 8 months, and EV Station Load Sizing every 2 months. Most recently, CZI Sound was updated on October 5, 2026 and EV Station Load Sizing on October 9, 2026.

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