yACK FAST vs Eola Power
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
yACK FAST
Read full descriptionHide full description
Tool for using BlueSnap M6A wireless module, Scanfob® Brand RFID-NFC reader/writers, Scanfob® Brand BLE barcode scanners -View, and setup module parameters -Chat in STEAM mode with UART connected devices. -Show data like sensor readings, barcode/NFC/UHF scans. -Send scanner commands -Get RSSI readings from nearby BLE devices -Bluetooth Smart terminal function -Easy command history Serialio.com provides BLE app development libraries used in this app
Eola Power
Read full descriptionHide full description
Our app offers a seamless solution for connecting modern technology with legacy RS232 interfaces. Acting as a Bluetooth-to-RS232 proxy, it eliminates the need for outdated computers with physical DB9 or DB25 ports. As modern computers and mobile devices no longer come with RS232 ports, our ecosystem bridges the gap, enabling RS232 communication wirelessly through Bluetooth. This means no bulkier USB-to-RS232 adapters or older laptops, providing users with a compact, efficient way to connect, monitor, and manage RS232 devices directly from their phones or newer computers. Whether you're working with industrial machinery, specialized hardware, or legacy systems, our app ensures compatibility with modern devices, allowing you to continue using RS232 equipment without sacrificing convenience. By expanding compatibility to mobile devices, this solution also opens up new possibilities for interacting with legacy equipment in ways that weren't previously possible, making RS232 communication easier and more accessible.
Screenshots
Verdict
yACK FAST and Eola Power 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.
yACK FAST ships an update every 2 months, Eola Power every 3 months. The most recent releases landed on October 10, 2026 and September 23, 2026 respectively.
| Parameter | yACK FAST | Eola Power |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 9 MB | 55 MB |
| Age rating | 4+ | 17+ |
| Developer | Serialio Ltd. | EOLA POWER LLC |
In-app purchases
yACK FAST
No in-app purchases
Eola Power
No in-app purchases









