Comparison

B vs OpenClient

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

Head to head
About

B

Monitor your home's real-time energy consumption and costs with this app. Track individual appliance usage, manage budgets, and optimize self-produced energy to reduce electricity bills and dependency on market prices.

Highlights
  • Real-time consumption display
  • Appliance cost tracking
  • Monthly budget calculator
  • Historical consumption diagrams
  • Self-produced energy optimization
  • Individual circuit monitoring
Features
Read full description

The Energy Manager App unfolds its full potential in connection with a fully integrated smart meter from B-control. The Energy Manager EM100 is the ideal energy meter for capturing the power consumption of your house in real-time and directly taking action to lower energy costs. Through an easy data transfer via ethernet or wifi you can call up your power consumption conveniently from a smartphone, tablet, or PC. The Energy Manager App offers a multitude of graphical assessments, which document your success and identify further possibilities of saving resources. The following functions await you in the app: - Display of momentary consumption - Display of momentary consumption as progression curve - Display of consumption itemized according to your 3-phase connection - Energy Stopwatch: measure the costs of individual appliances - Budget calculator: Keep an overview of your monthly budget - Display of past consumption data in diagrams - Display of your electricity tariff - Display of current meter readings You produce your own energy? The Energy Manager EM210 enables you to optimize your energy supply. You have control over when you draw and feed in power. Through the controlled usage of your self-produced power you not only sink your electricity costs, you also reduce the dependency of rising prices in the electricity market. In connection with the EM210 you have access to the following additional functions with the app: - Display of momentary power supply or feed-in - Display of all past values in diagrams designated as power supply or feed-in With the EM300 the individual circuits can be read out with the B-control sensors via the RS485 interface of the Energy Manager. If sensors are connected to the EM300, the following values are available in the app: - Power consumption values of individual circuits in real-time - Power consumption of individual circuits as a real-time curve - Historical consumption data of individual circuits in diagrams - Comparable representation of the consumption data of individual circuits

About

OpenClient

Connect to your self-hosted AI models for private conversations without subscriptions. Supports multimodal input, real-time streaming, and extensive model compatibility. Offers robust conversation management and personalization features.

Highlights
  • Connect to self-hosted LLMs
  • Real-time streaming responses
  • Multimodal input (photos, PDFs)
  • Conversation history and branching
  • Prompt templates and memory
  • iCloud sync
  • Export conversations to JSON
Features
Read full description

OpenClient is an independent AI chat client for professionals and developers who run their own LLM infrastructure. Connect it to your self-hosted server and chat with your models, without mandatory subscriptions. Compatible with LiteLLM, Ollama, and OpenAI-compatible servers. Supports many popular model families, including GPT, Claude, Llama, Gemini, Mistral, and more. Chat • Real-time streaming responses with Markdown and code block rendering • Collapsible Thinking section for supported reasoning models • Attach photos, camera captures, and PDF documents for multimodal conversations • Drag and drop text, images, and files from other apps (Split View, Stage Manager, Finder on macOS) • Dictate messages with Speech-to-Text and listen with Text-to-Speech • Web search through the search provider configured on your server • Tool-calling support for models that provide function calling • MCP (Model Context Protocol) tools, browse, enable, and use external tools from MCP servers like GitHub, databases, and more, configured on your LiteLLM server • Favourite messages to bookmark and revisit quickly • Per-conversation system prompt and model parameters (temperature, max tokens, top-p) Conversations • Full conversation history with search, pins, and tags • Branch from any message to explore alternatives, then edit and regenerate • Media & Files gallery to browse all attached images and documents • Share content from any app directly into a new conversation via Share Sheet • Apple Shortcuts integration: New Chat, Search Chats, Send File to Chat • Home Screen widgets: New Chat, Search, Quick Actions, Conversations Overview • Control Center button: start a new chat from Control Center • iCloud sync across your Apple devices • Export conversations to JSON • Token usage per message and estimated conversation cost Models • Browse available models with capability badges (vision, tools, JSON mode) • Model detail sheet with context window, pricing, provider, and capabilities • Voice selector for Text-to-Speech models • Switch models per conversation Personalization • Prompt template library for recurring workflows • User profile to provide name and context • Memory to save facts and preferences, synced via iCloud On macOS • Menu bar companion for quick access without opening the main window Privacy • OpenClient does not operate a backend service for your chats. Your requests are sent to the server you configure. • OpenClient does not include advertising SDKs or third-party analytics trackers. This project is licensed under the GNU Affero General Public License v3.0: https://github.com/ArtCC/openclient-llm Privacy Policy: https://arturocarreterocalvo.com/openclient-llm/privacy Terms of Use: https://arturocarreterocalvo.com/openclient-llm/terms OpenClient is an independent client and is not affiliated with or endorsed by the model or platform providers referenced above.

Screenshots

B4 screens
OpenClient4 screens

Verdict

The call

The clearest difference is review sentiment: OpenClient at 100% against B's 0%. OpenClient also leads on update cadence (every 4 days vs every 14 months). B's advantage is in-app purchases (none vs 5) and iOS requirement (8.0 vs 26.6). On price, ads, monetization model 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. OpenClient sells 5 in-app purchases, starting at $2.99 per month. B asks for nothing beyond the download.

UpkeepUpdate frequency

B ships an update every 14 months, OpenClient every 4 days. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
B versus OpenClient: the parameters behind the verdict, then further details
ParameterBOpenClient
PriceFreeFree
Rating—4.9 (8 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—8 — better
Update frequencyEvery 14 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS8.0 — better26.6
Further details — not scored
Size10 MB244 MB
Age rating4+4+
DeveloperTQ-Systems GmbHArturo Carretero Calvo

Customer experience

B

Written reviews6 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

OpenClient

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

B

No in-app purchases

5 purchases

OpenClient

Subscriptions2
  • Monthly Support$2.991 Month
  • Annual Support$8.991 Year
One-time3
  • Small Coffee$2.99
  • Medium Coffee$3.99
  • Big Coffee$8.99

Questions

Is B free?
B is free to download, with no in-app purchases.
Is OpenClient free?
OpenClient is free to download, with in-app purchases available.
Do B or OpenClient have ads?
Neither B nor OpenClient shows ads.
Which is updated more often, B or OpenClient?
B ships an update every 14 months, and OpenClient every 4 days. Most recently, B was updated on October 10, 2026 and OpenClient on October 25, 2026.

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