Comparison

BLE Term vs Kelvarune

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

Head to head
About

BLE Term

Features
Read full description

BLE Term is a general-purpose Bluetooth Low Energy (BLE) terminal emulator designed for anyone who needs simple, text-based communication with BLE devices. The app allows users to scan, connect, and communicate with any BLE device that provides UART-style characteristics, making it suitable for a wide range of use cases including prototyping, IoT development, hardware debugging, and education. BLE Term is not limited to any specific organization or product. It can be used by developers, students, hobbyists, and engineers with their own BLE-enabled devices. Key features: • Scan and connect to standard BLE devices • Send and receive text-based data • UART-style BLE communication • Real-time log display • No registration or account required BLE Term is a simple, lightweight, and universal tool for everyday BLE communication.

About

Kelvarune

Features
Read full description

Kelvarune is a developer tool that lets you monitor, debug, and control ESP32 / Arduino and other embedded devices from your smartphone in real time. Add just a few lines of the Kelvarune SDK to your sketch, and your Dashboard builds itself automatically. No complex setup - connect over BLE or Wi-Fi/WebSocket and you're ready to go. ■ Monitor - System Metrics such as CPU, free heap, and connection status, shown automatically - Add User Metrics like temperature, humidity, RPM, or voltage with a few lines of code - Clear display styles: Number, Gauge, Bar, LED, and line graphs ■ Debug - Filter, search, and copy DEBUG / INFO / WARN / ERROR logs in Console - Track connection changes, reboots, and other key state changes in a timeline with Events - View current value, min, max, average, and a history graph in Metric detail ■ Control - Command UI is generated automatically from your SDK-side definitions (Button, numeric, Boolean, Enum, and more) - Commands that trigger real actions (like Reset) require confirmation to prevent accidents ■ And more - Manage settings for multiple devices as separate Projects - Alerts notify you when a threshold is crossed or updates stop (Pro) - Save Session history and export it as CSV (Pro) - No hardware? Try the core features right away in Demo Mode ■ Free / Pro All the core features are available for free. Upgrading to Pro removes the limits on Projects, Commands, User Metrics, and graph displays, and unlocks Alerts, permanent Session storage, CSV export, and advanced System Metrics (one-time purchase, restore purchase supported, no ads). Languages: Japanese / English / Simplified Chinese (follows your device language) Requires: iOS 17+ The Kelvarune SDK (free and open source, for ESP32/Arduino Core) is available at: https://github.com/minervasoft-inc/Kelvarune

Screenshots

BLE Term2 screens
Kelvarune4 screens

Verdict

The call

The clearest difference is in-app purchases: BLE Term at none against Kelvarune's 1. BLE Term also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.6). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kelvarune sells 1 one-off in-app purchase. BLE Term asks for nothing beyond the download.

Scorecard3 real differences · 2 level
BLE Term versus Kelvarune: the parameters behind the verdict, then further details
ParameterBLE TermKelvarune
PriceFreeFree
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size0 MB9 MB
Age rating4+4+
DeveloperHiroshi OhtaMINERVA, INC.

In-app purchases

None

BLE Term

No in-app purchases

1 purchases

Kelvarune

One-time1
  • Kelvarune Pro$4.99

Questions

Is BLE Term free?
BLE Term is free to download, with no in-app purchases.
Is Kelvarune free?
Kelvarune is free to download, with in-app purchases available.
Do BLE Term or Kelvarune have ads?
Kelvarune shows ads; BLE Term does not.

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