e vs Kadaa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
e
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This app is designed for Bluetooth smart lighting, providing users with a better experience.
Kadaa
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Edison Opto builds an integrated smart lighting ecosystem with "high compatibility" at its core, enabling seamless control across different types and brands of lighting fixtures. By utilizing wireless low-power consumption technology, we deliver real-time, stable control for large-scale connections across residential, commercial, healthcare, and educational environments, ensuring professional-grade performance with zero command latency.
Screenshots
Verdict
e and Kadaa are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
e ships an update every 5 months, Kadaa every 3 months. The most recent releases landed on May 17, 2026 and September 13, 2026 respectively.
| Parameter | e | Kadaa |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 40 MB | 313 MB |
| Age rating | 17+ | 4+ |
| Developer | Dongguan Zhiyaoxing Lighting Technology Co., Ltd. | Edison Opto Corporation |
In-app purchases
e
No in-app purchases
Kadaa
No in-app purchases
