WattUp vs BlueSim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WattUp
This application allows users to scan for and connect to wireless charging devices using Bluetooth. It enables configuration, control, and monitoring of transmitters and receivers, along with software updates for enabled devices.
- Scan for WattUp enabled devices
- Connect via Bluetooth Low Energy (BLE)
- Configure transmitters and receivers
- Control charging devices
- Monitor device status
- Update device software
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Energous Corporation is leading the next generation of wireless power and wireless charging – Wireless Charging 2.0 – with its award-winning WattUp® technology, which supports fast, efficient contact-based charging, as well as charging over-the-air. WattUp is a scalable, RF-based wireless charging technology that offers substantial improvements in contact-based charging efficiency, foreign object detection, orientation freedom and thermal performance compared to older, coil-based charging technologies. The technology can be designed into many different sized electronic devices for the home and office, as well as the medical, industrial, retail and automotive industries, and it ensures interoperability across products. These products can be configured, controlled and monitored by WattUp App. Features: - Scan for WattUp enabled wireless charging devices - Connect to devices over Bluetooth Low Energy(BLE) - Configure, control and monitor WattUp Transmitter and Receivers - Software update of WattUp enabled devices Note: - Supported on iOS 11 version or later - Bluetooth Low Energy(BLE) should be turned on
BlueSim
Simulate a Bluetooth Low Energy peripheral to test or debug other devices. Send custom data to a central device, facilitating development and troubleshooting.
- Bluetooth LE peripheral simulation
- Custom data transfer
- Device testing and debugging
- Supports central/host devices
- iPhone and iPad compatible
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BlueSim turns your phone into a customizable Bluetooth LE (BLE) peripheral. This enables you to test or debug a separate "central" or "host" device with the data of your choice. Using this app, you can transfer data between the device running this app and another device operating in the Bluetooth central role.
Screenshots
Verdict
The clearest difference is price: WattUp at Free against BlueSim's $4.99. WattUp also leads on iOS requirement (12.4 vs 16.6). BlueSim's advantage is rating (5.0 vs 4.2) and update cadence (every 2 weeks vs every 5 weeks). On ratings volume, ads, in-app purchases 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
WattUp is free to download; BlueSim costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BlueSim holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 4 respectively.
WattUp ships an update every 5 weeks, BlueSim every 2 weeks. The most recent releases landed on September 21, 2026 and September 12, 2026 respectively.
| Parameter | WattUp | BlueSim |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 4.2 (5 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 5 — better | 4 |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #146 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.4 — better | 16.6 |
| Further details — not scored | ||
| Size | 22 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Energous Corporation | Brandon Fraune |
Customer experience
WattUp
BlueSim
In-app purchases
WattUp
No in-app purchases
BlueSim
No in-app purchases
Questions
Is WattUp free?
Is BlueSim free?
Which has better reviews, WattUp or BlueSim?
Do WattUp or BlueSim have ads?
Which is updated more often, WattUp or BlueSim?
Other comparisons
