BlitzGTD vs SessionsAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BlitzGTD
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Are you weary of drowning in never-ending to-do lists and productivity tools that only add to the complexity? It is time to reclaim your time and energy with BlitzGTD, the ultimate personal productivity system designed to help you achieve more in less time! Forget about getting lost in convoluted methodologies and overwhelming task management. BlitzGTD takes the best principles from GTD (Getting Things Done) and supercharges them with a streamlined approach that will revolutionize the way you work. So, what sets BlitzGTD apart? Turbocharged Phases for Maximum Efficiency BlitzGTD introduces a powerful phased approach that aligns your tasks with modern agile methodologies: Today: Seize the Day Start every day fresh with the Today phase. Throw everything that comes your way in your Today list, keeping it short and focused. Prioritize, categorize, and handle tasks one by one. With BlitzGTD, you'll be in control, and tasks will flow smoothly from start to finish. Sprint: Accelerate Your Progress The Sprint phase is where you have tasks for the week. After completing your Today list, turn to the Sprint list for your next challenges. Keep it reasonable and stay on track towards your goals. Backlog: Fuel for the Future The Backlog phase is your treasure trove of ideas and tasks for future sprints. Store everything you want to tackle later. But don't let it become a graveyard! BlitzGTD keeps your Backlog active and tidy, ensuring you never lose sight of important tasks waiting for their time to shine. Archive: Remember Your Triumphs While others leave completed tasks in the dark, BlitzGTD celebrates your victories in the Archive phase. Preserve valuable information for years to come. You'll be amazed at how it aids recall and frees up mental space, especially when requests about past work come knocking. Schedule: Time Your Success For tasks with specific deadlines or time-sensitive requirements, the Schedule phase is your trusty ally. Pinpoint when tasks should be pushed to your Today list. Add reminders or set up recurring schedules effortlessly. Stay on top of your commitments with ease. Unleash Your Potential with Smart Planning BlitzGTD's planning events empower you to take charge of your day and week: Daily Event: Conquer Each Day Start your day with the Daily event. Once a day, dive into your calendar, Today, and Sprint lists. With a clear vision of what lies ahead, you'll arrange tasks strategically, ensuring a productive day ahead. No more aimless scrambling—BlitzGTD keeps you focused on what matters most. Weekly Event: Command Your Week Before each week unfolds, the Weekly event grants you the power to harness its potential fully. Take a dedicated moment to review your calendar, Sprint, and Backlog. Fine-tune your plan, ensuring a well-structured, intentional week. Say goodbye to overwhelm and hello to balanced productivity. BlitzGTD provides versatile features to tackle even the most complex tasks effortlessly: Simple hierarchy: Where Complexity Finds Clarity No more going into the rabbit hole. Tasks have Sub-Tasks and that's it. You work on a complex project? Yeah, that's the task. The detailed planning is done in the linked project planning tool, which does it the best. Embrace simplicity like never before, while keeping your workflow simple and organized. Tags: Context, Simplified Forget about rigid folders and categories. BlitzGTD embraces the power of tags as first-class citizens. Use 1-2 tags to add context and gain a holistic overview of your tasks. No more decision paralysis—simply tag and go! Attachments: Secure what is necessary Upload images or files that are part of the task to have everything in one place. No more searching for the screenshot! See https://blitzgtd.fa-krug.de/blitzgtd/ for an even deeper introduction. Also available on MacOS with full real-time sync! Attributions - https://hotpot.ai/ Legal Notice: https://blitzgtd-krug.de/legalnotice/
SessionsAI
This app offers private AI chat sessions that run entirely on your device, ensuring your conversations and data remain secure. It allows for offline use, local model execution, and on-device image generation, giving you full control over your AI interactions.
- On-device AI processing
- No cloud servers or accounts
- Local language model execution
- On-device image generation
- Private knowledge base integration
- Offline functionality
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Sessions AI is a private AI workspace that runs entirely on your iPhone, iPad, or Mac. Not just a chat box: it uses real tools, works from your own documents, and creates images—all on device, with no account and no cloud. More than a chat box Most on-device AI apps just run a model. Sessions AI gives the assistant real tools and lets it do the work: calculate, convert units, look things up on Wikipedia, check your calendar, add reminders, search the web, fetch a page, generate an image. Ask for something involved and it writes a plan first—which you can read, edit, and approve before it spends a moment of compute. You see every step it takes. Ask by voice, or from a Shortcut Say "Start a chat in Sessions AI" to Siri and speak your question—it opens the app and lands the answer in a real conversation you can carry on. The Ask Sessions AI action appears in Spotlight and the Shortcuts app too, so you can build it into your own workflows. Ground answers in your own knowledge Give a persona its ownprivate knowledge base—add documents from a file or a URL, including Word, RTF, and PDF. When you ask a question, Sessions AI searches that content on device and bases its answer on it, and shows you which passages it used. Nothing is uploaded; indexing and search happen locally. Personas that keep work separate Set up a persona for each kind of work, each with its own system prompt, knowledge base, and connected tools. Switch per chat. Research stays separate from writing, and work stays separate from home. Bring your own tools (MCP) Connect Model Context Protocol servers and their tools appear right in your chat, alongside the built-in ones. Add custom HTTP headers for authentication, stored securely in the Keychain. It's your workspace—extend it however you like. Create images on device Ask the assistant to draw, sketch, or visualize—and it generates images right on your device, no cloud APIs. Choose from fast models like Stable Diffusion XL Lightning and Z-Image Turbo through to higher-quality ones like FLUX.2 Klein, with larger models such as Qwen Image on high-memory Macs. Watch a live preview as it draws, start from one of your own photos with image-to-image, and reuse the seed shown with each result to reproduce or vary it. Browse everything you've made in a built-in Gallery. Your chats are yours Every conversation is saved on your device as a plain Markdown file you can open in the Files app—no proprietary format, no lock-in, no export button needed. Pin, rename, group, and search across every chat by name or content. Your model, your choice Sessions AIruns open language models in a range of sizes—Gemma, Qwen, Ministral, Mistral, and Ternary Bonsai families among them. Pick a small, fast model for quick answers or a larger one for harder work, and set a different model per conversation. Download only what you need; remove any model to free space. Made for every screen Designed for iPhone, iPad, and Mac, with full Dark Mode support. On iPad and Mac, a roomy sidebar lets you group and pin chats and jump between your models and Gallery; on iPhone, a simple tab bar keeps everything a tap away. Built for privacy Chat transcripts, the knowledge base, and all model data stay on your device. Language models and image generation both run locally—nothing you type is sent to the cloud for AI processing. Calendar and reminder access are used only on device to answer your questions. Web search is optional; when enabled, only the search query is sent to the provider (e.g. DuckDuckGo), not your full conversation. No telemetry, no analytics, no account—just you and your device. Who it's for Sessions AI is for anyone who wants a capable AI workspace without handing their work to the cloud. Whether you care about privacy, work offline, or simply prefer to own your data, it gives you a full assistant that runs where you do: on your own device.
Screenshots
Verdict
The clearest difference is price: BlitzGTD at Free against SessionsAI's $14.99. BlitzGTD also leads on update cadence (every 4 days vs monthly) and iOS requirement (17.0 vs 26.0). SessionsAI's advantage is in-app purchases (none vs 1). On ads 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
BlitzGTD is free to download; SessionsAI costs $14.99 up front. BlitzGTD sells 1 one-off in-app purchase. SessionsAI asks for nothing beyond the download.
BlitzGTD ships an update every 4 days, SessionsAI monthly. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.
| Parameter | BlitzGTD | SessionsAI |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 22 MB | 87 MB |
| Age rating | 4+ | 4+ |
| Developer | Sascha Krug | Erich Champion |
In-app purchases
BlitzGTD
- BlitzGTD Pro$5.99
SessionsAI
No in-app purchases









