Comparison

BattAir vs PowerDiag

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

Head to head
About

BattAir

This app displays and manages information for smart batteries. Users can view battery status, adjust settings, and perform firmware upgrades. It's designed for users who need detailed control over their smart battery devices.

Highlights
  • Display smart battery information
  • Set smart battery parameters
  • Smart battery firmware upgrade
  • Real-time battery status monitoring
Features
Read full description

BattAir is an ISDT app that displays information for smart batteries. Features: 1. Display smart battery information 2. Set smart battery parameters 3. Smart battery firmware upgrade

About

PowerDiag

Features
Read full description

PowerDiag は、PowerDiag Bluetooth アダプタ(別売)と組み合わせて、電動工具のバッテリーパックの状態を詳しく読み取る診断アプリです。 セル電圧・温度・容量・残量・充電回数などをその場で確認でき、劣化やセル間の電圧ばらつき(不均衡)を見える化します。中古バッテリーの状態チェックや、現場での簡易診断に最適です。 ■ 主な機能 ・各セルの電圧をグリッド表示、電圧差(不均衡)も自動計算 ・パック電圧/残量(SOC)/温度をまとめて表示 ・型番・容量・充電回数・製造情報を自動認識 ・読み取り履歴を端末内に保存 ・日本語/英語/中文に対応 ■ 対応バッテリー ・マキタ XGT ・HiKoki(マルチボルト 36V など) ※対応バッテリーは順次拡大予定です。 ■ ハードウェアが必要です 本アプリのご利用には PowerDiag アダプタ(別売)が必要です。お持ちでない場合も、設定の「デモモード」からサンプルデータでアプリの動作をお試しいただけます。 ■ プライバシー 本アプリは一切のデータを収集・送信しません。読み取った情報はすべて端末内にのみ保存され、オフラインで動作します。

Screenshots

BattAir4 screens
PowerDiag4 screens

Verdict

The call

The clearest difference is device support: BattAir at 3 against PowerDiag's 1. BattAir also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads and in-app purchases 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

BattAir ships an update monthly, PowerDiag every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
BattAir versus PowerDiag: the parameters behind the verdict, then further details
ParameterBattAirPowerDiag
PriceFreeFree
Rating3.0 (5 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings5 — better—
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better17.0
Further details — not scored
Size15 MB2 MB
Age rating4+4+
Developer深圳艾斯特创新科技有限公司QIAN WANPENG

In-app purchases

None

BattAir

No in-app purchases

None

PowerDiag

No in-app purchases

Questions

Is BattAir free?
BattAir is free to download, with no in-app purchases.
Is PowerDiag free?
PowerDiag is free to download, with no in-app purchases.
Do BattAir or PowerDiag have ads?
Neither BattAir nor PowerDiag shows ads.
Which is updated more often, BattAir or PowerDiag?
BattAir ships an update monthly, and PowerDiag every 2 months. Most recently, BattAir was updated on November 3, 2026 and PowerDiag on October 31, 2026.

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