Comparison

RobotDiag vs BLE Elf

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

Head to head

Helper for Scanning Bluetooth

Free

🔧 Utilities

No ratingsView app →

About

RobotDiag

Features

Read full description

Take full control of pool robot diagnostics with the RobotDiag app, designed for efficient after-sales service. With Bluetooth connectivity, the app enables technicians to test pumps, motors, ultrasonic sensors, and battery packs seamlessly. Its intuitive interface allows for quick troubleshooting and report generation, ensuring accurate repairs with minimal effort.

About

BLE Elf

Features

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The Bluetooth Beacon can help you discover nearby Bluetooth devices, establish connections and perform debugging. Feature list: 1. Device scanning 2. Signal strength detection 3. Device connection 4. Device information reading 5. Data reading and writing 6. Log data Privacy Policy : https://debugger-pp.im4v.cn Terms of Service: https://debugger-term.im4v.cn

Screenshots

RobotDiag4 screens

BLE Elf4 screens

Verdict

The call

The clearest difference is in-app purchases: RobotDiag at none against BLE Elf's 1. BLE Elf's advantage is device support (4 vs 2). On price, update cadence, ads and iOS requirement 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. BLE Elf sells 1 one-off in-app purchase. RobotDiag asks for nothing beyond the download.

UpkeepUpdate frequency

RobotDiag ships an update every 2 months, BLE Elf every 5 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level

RobotDiag versus BLE Elf: the parameters behind the verdict, then further details
Parameter	RobotDiag	BLE Elf
Price	Free	Free
Update frequency	Every 2 months	Every 5 weeks — better
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPod	iPhone, iPad, iPod, Mac — better
Requires iOS	14.2 — better	15.0
Further details — not scored
Size	3 MB	38 MB
Age rating	4+	4+
Developer	Degrii Inc.	Wuhan Jiushu Media Co., Ltd.

In-app purchases

None

RobotDiag

No in-app purchases

1 purchases

BLE Elf

One-time1

lifetime vip$2.99

Questions

Is RobotDiag free?

RobotDiag is free to download, with no in-app purchases.

Is BLE Elf free?

BLE Elf is free to download, with in-app purchases available.

Do RobotDiag or BLE Elf have ads?

Neither RobotDiag nor BLE Elf shows ads.

Which is updated more often, RobotDiag or BLE Elf?

RobotDiag ships an update every 2 months, and BLE Elf every 5 weeks. Most recently, RobotDiag was updated on October 30, 2026 and BLE Elf on October 31, 2026.