Protractor+ vs Eboard for balance car
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protractor+
Transform your device into a versatile angle measurement tool. Easily measure angles in both degrees and radians with an intuitive interface. Ideal for quick and precise angle readings.
- Angle measurement
- Degrees and radians
- Intuitive visual control
- Elegant design
- Pocket protractor functionality
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Protractor helps you to measure angles quickly and easily. This app turn your iPhone into a handy pocket protractor that can measure angles in both degrees and radians. Features: - Elegant design - Measure in degrees and radians - Intuitive visual control
Eboard for balance car
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1, The Eboard App for balancing vehicle development App. 2, Through a Bluetooth connection to the Eboard balanced car, the App can display vehicle temperature, power, speed, current, current mileage, the mileage and other states. 3, The App can also control the power, switch the vehicle, the front and rear angle, steering sensitivity. 4.Continued use of GPS running in the background can dramatically decrease battery life. The App requires iOS8.0 or higher.
Screenshots
Verdict
The clearest difference is in-app purchases: Eboard for balance car at none against Protractor+'s 1. Eboard for balance car also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (7.0 vs 17.6). On price, ads and device support 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
Both are free to download. Protractor+ sells 1 one-off in-app purchase. Eboard for balance car asks for nothing beyond the download.
Protractor+ ships an update every 2 months, Eboard for balance car fortnightly. The most recent releases landed on September 30, 2026 and September 17, 2026 respectively.
| Parameter | Protractor+ | Eboard for balance car |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (10K ratings) — better | — |
| Positive reviews | 14.9% of reviews | — |
| Number of ratings | 10K — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 7.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Tue Nguyen Minh | Shenzhen LingDong Intelligent Technologies CO., LTD. |
Bugs and requests
Protractor+
Reported bugs
3 issues- Camera feature not working as expected
- Angle measurements not accurate
- Frequent app crashes
Requested features
3 requests- Ability to measure in degrees without upgrade
- Improved accuracy and responsiveness
- Removal of timeouts and paywalls
Eboard for balance car
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Protractor+
- Pro Features$1.99
Eboard for balance car
No in-app purchases
Questions
Is Protractor+ free?
Is Eboard for balance car free?
Do Protractor+ or Eboard for balance car have ads?
Which is updated more often, Protractor+ or Eboard for balance car?
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