# DeepSeek vs Fello AI (HelloAI)

DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. Fello AI (HelloAI) records 0 monthly visits with — growth and Freemium pricing.

| Metric | [DeepSeek](https://openaitools.app/tool/deepseek) | [Fello AI (HelloAI)](https://openaitools.app/tool/helloai) |
| :--- | :--- | :--- |
| Website URL | https://www.deepseek.com | https://apps.apple.com/us/app/helloai-ai-chatbot-assistant/id6447705369 |
| Categories | Large Language Models (LLMs), Open Source AI Models, AI API, AI Chatbot | AI Chatbot, AI Assistant, AI Writing, AI Essay Writer |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 372,761,591 | 0 |
| MoM Growth Rate | +4.3% | — |
| Primary Market | China | Global |
| Direct Visits | 291,585,405 | 0 |
| Review Score | 4.8 | 4.5 |
| Saved Count | 44 | 0 |
| Supported Platforms | Website | App |

## DeepSeek

DeepSeek (Hangzhou DeepSeek Artificial Intelligence Co., Ltd.) is a frontier AI research organization that disrupted the global LLM market by pairing open-weight transparency with breakthrough Mixture-of-Experts (MoE) and reinforcement-learning reasoning efficiency. Following the landmark releases of DeepSeek-V3 and the peer-reviewed DeepSeek-R1 reasoning model, DeepSeek introduced the DeepSeek-V4 generation in 2026—featuring a hybrid attention architecture and a native 1-million-token context window across DeepSeek-V4-Pro (1.6T total parameters, 49B active per token) and DeepSeek-V4.1-Flash (284B total parameters, 13B active per token).

Users can interact with DeepSeek in three ways: completely free through the consumer web portal (chat.deepseek.com) and mobile apps with one-click toggles for deep thinking and live web search; via DeepSeek's hosted, OpenAI-compatible developer API; or by self-hosting DeepSeek's open-weight checkpoints (including V3, R1, Prover-V2, and distilled Qwen/Llama variants) on private infrastructure. The models excel at competitive mathematics, algorithm design, repository-level software engineering, and structured data extraction, with automatic context caching on the API that slashes repeated prompt costs by over 95%.

In late 2026, DeepSeek remains the price-performance benchmark for developers and automation workflows. While the consumer chat interface remains free without a mandatory $20/month subscription tier, the developer API transitioned in late 2026 to two primary endpoints—`deepseek-flash` and `deepseek-v4-pro`—with time-of-day pricing. Off-peak API calls cost just $0.15 per million input tokens ($0.003 on cache hits) and $0.60 per million output tokens on Flash, and $0.66 input / $1.98 output on V4-Pro, making it a fraction of the cost of comparable Western frontier models.

**Pricing & Plans:** Free web and mobile chat app at chat.deepseek.com; pay-as-you-go OpenAI-compatible API with off-peak rates at $0.15/1M input ($0.003 cache hit) and $0.60/1M output for deepseek-flash (V4.1-Flash), and $0.66/1M input ($0.022 cache hit) and $1.98/1M output for deepseek-v4-pro (peak weekday UTC hours bill at 2x).

- **DeepSeek-V4 Hybrid Attention & 1M Context:** Leverages a sparse Mixture-of-Experts architecture (49B active parameters out of 1.6T on V4-Pro) to process up to 1 million tokens with minimal latency and memory overhead.
- **Transparent Chain-of-Thought Reasoning:** Pioneered by DeepSeek-R1 and integrated into V3.2 and V4 thinking modes, exposing step-by-step self-verification for complex math, logic, and code debugging.
- **Automatic Context Caching & Off-Peak API Pricing:** Drops input token costs to $0.003/1M on Flash and $0.022/1M on V4-Pro for cache hits, with 50% lower rates during off-peak UTC hours.
- **Free Consumer Web & Mobile Assistant:** Provides free access at chat.deepseek.com and on iOS/Android with document uploads, reasoning mode, and web search without paywalling core models.
- **Open-Weight Ecosystem & Self-Hosting Freedom:** Offers open weights for DeepSeek-V3, R1, Distill variants, and Prover models on Hugging Face and GitHub so enterprises can deploy within air-gapped environments.

**Strengths:** Completely free consumer web and mobile app with deep reasoning and web search included; Ultra-low API token rates ($0.15/$0.60 on Flash, $0.66/$1.98 on V4-Pro off-peak) with up to 98% savings on cached inputs; Drop-in OpenAI API compatibility makes switching or routing between models effortless; Strong open-weight lineage allows teams to self-host or fine-tune models without vendor lock-in

**Limitations:** Hosted API and web app store data on servers in China, prompting compliance restrictions for some Western enterprises and government agencies; Peak-hour API pricing (01:00–04:00 and 06:00–10:00 UTC on weekdays) doubles per-token costs compared to off-peak rates; Lacks native voice mode, video generation, and productivity suite integrations offered by ChatGPT and Google Gemini

[Profile (Markdown)](https://openaitools.app/tool/deepseek.md)

## Fello AI (HelloAI)

Fello AI is the current identity of the app originally shipped as HelloAI - AI Chatbot Assistant. Still published by AI Apps Brewery s.r.o. under the same App Store ID, it has evolved into a multi-model AI workspace for Apple devices: rather than subscribing to ChatGPT, Claude and Gemini separately, you get access to a broad set of leading text and image models inside one fast native app on Mac, iPhone and iPad.

The everyday workflow is broad. You can ask questions by voice or text, upload PDFs, images, spreadsheets, presentations, iWork documents, code and logs to summarise or transform them, let the app search the web automatically when a model needs current information, or trigger Deep Research for more involved questions. Image generation and editing are built in, and Skills package common jobs such as planning a trip, producing a podcast script or drafting written content.

What sets it apart from a plain chat client is output: Fello AI creates real .pptx, .xlsx, .docx and .pdf files directly from the conversation, complete with charts and formulas, and organizes parallel workstreams into Projects so chats and files stay together. With a 4.6-star average across roughly 140 App Store ratings, it is a well-received productivity tool; some users have asked for better chat syncing between devices, which the developer has been addressing.

**Pricing & Plans:** Free to download with a limited daily message allowance on the free tier. Unlimited access to all AI models and Skills requires an in-app subscription, which includes a free trial; no ads or hidden fees.

- **Many leading models in one app:** Switch between current GPT, Claude, Gemini, Grok, DeepSeek, Qwen, MiniMax, Kimi and other models for text and image tasks without juggling separate subscriptions.
- **Real document generation:** Create genuine .pptx, .xlsx, .docx and .pdf files — pitch decks with charts, spreadsheets with working formulas, reports and more — directly from chat.
- **Chat with your files and use voice:** Upload PDFs, images, spreadsheets, presentations, iWork files, code or logs to summarise, analyse and transform them, or simply talk to the assistant.
- **Web search and Deep Research:** The app can search automatically when a model needs fresh information, and Deep Research digs into complex topics systematically.
- **Projects, Skills and multi-device sync:** Keep related chats and files in Projects, use Skills for travel, podcasting and writing, and sync work across Mac, iPhone and iPad.

**Strengths:** One subscription covers many leading AI models for text and images; Generates genuine Office and PDF files with charts and formulas; Native Mac, iPhone and iPad experience with voice input; Handles file questions, web search and Deep Research in the same workspace

**Limitations:** Full model access requires a paid subscription; the free tier caps daily messages; Some users report that chat syncing between devices has been inconsistent; Aggregating many models means you depend on the developer's own model routing and pricing

[Profile (Markdown)](https://openaitools.app/tool/helloai.md)

## Frequently Asked Questions

### How do DeepSeek and Fello AI (HelloAI) compare in monthly traffic?

DeepSeek has 372,761,591 monthly visits, while Fello AI (HelloAI) has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

DeepSeek has a month-over-month growth rate of +4.3%; Fello AI (HelloAI) has —.

### How does pricing compare?

DeepSeek: Freemium. Free web and mobile chat app at chat.deepseek.com; pay-as-you-go OpenAI-compatible API with off-peak rates at $0.15/1M input ($0.003 cache hit) and $0.60/1M output for deepseek-flash (V4.1-Flash), and $0.66/1M input ($0.022 cache hit) and $1.98/1M output for deepseek-v4-pro (peak weekday UTC hours bill at 2x). Fello AI (HelloAI): Freemium. Free to download with a limited daily message allowance on the free tier. Unlimited access to all AI models and Skills requires an in-app subscription, which includes a free trial; no ads or hidden fees.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Google Gemini](https://openaitools.app/tool/gemini-gemini-advanced) | 2,637,398,242 | -0.1% | Freemium | Offers an enormous context window and deep Google ecosystem integration, but feels less specialized for pure reasoning tasks. | [.md](https://openaitools.app/tool/gemini-gemini-advanced.md) |
| 3 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Delivers superior long-form coding artifacts and nuanced writing, but lacks DeepSeek's specialized open-weight reasoning models. | [.md](https://openaitools.app/tool/claude-2.md) |
| 4 | [Grok](https://openaitools.app/tool/grok) | 203,846,050 | -0.8% | Freemium | Features real-time X social data integration, but is less cost-effective for dedicated developer coding workflows. | [.md](https://openaitools.app/tool/grok.md) |
| 5 | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | -3.7% | Freemium | Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models. | [.md](https://openaitools.app/tool/perplexity-ai.md) |
| 6 | [Qwen 4 (Alibaba Qwen4)](https://openaitools.app/tool/qwen-4) | 35,101,353 | -6.2% | Freemium | Provides comparable open-weight foundation models and multilingual performance, but requires self-hosting or third-party inference setup. | [.md](https://openaitools.app/tool/qwen-4.md) |
| 7 | [Cursor](https://openaitools.app/tool/cursor) | 23,297,751 | +8.4% | Freemium | The AI coding agent for building ambitious software | [.md](https://openaitools.app/tool/cursor.md) |
| 8 | [Kimi AI](https://openaitools.app/tool/kimi-chat) | 19,632,261 | -23.4% | Free | Excels at ultra-long document analysis and research, but lacks the same level of open-weight developer community support. | [.md](https://openaitools.app/tool/kimi-chat.md) |
| 9 | [Notion AI](https://openaitools.app/tool/notion-ai) | 13,460,455 | +13.4% | Freemium, Paid, Contact for Pricing | Your always-on AI teammate inside the Notion workspace | [.md](https://openaitools.app/tool/notion-ai.md) |
| 10 | [Ollama](https://openaitools.app/tool/ollama) | 9,421,973 | +4.3% | Free, Freemium, Paid | Enables running open-source models locally on consumer hardware, but lacks DeepSeek's cloud-scale hosted reasoning power. | [.md](https://openaitools.app/tool/ollama.md) |

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Source: https://openaitools.app/compare/deepseek-vs-helloai

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