Here is a question worth sitting with: how many productivity apps do you currently pay for? Include everything — task managers, note-taking apps, calendar tools, habit trackers, journal apps, read-it-later services, writing tools, focus timers, and anything else you'd categorize as "helping you be more productive." Add up the monthly costs. Most people who do this exercise are surprised by the result.
According to Productiv's 2023 SaaS Management Index, the average knowledge worker uses between 5 and 7 productivity applications regularly, with a longer tail of apps used occasionally. Okta's Business at Work report put the average number of apps per employee at major organizations significantly higher — but even at the personal level, five to seven apps generating distinct subscriptions adds up fast. And unlike enterprise software, where IT departments negotiate bulk licensing, individuals almost universally pay full retail price for every tool they use.
The cost of a typical productivity stack
Let's be concrete. Here is a representative productivity stack for a freelancer, remote worker, or independent professional who takes their tools seriously — the kind of person who reads posts like this one:
$50 a month is $600 a year. For a more premium stack — Notion AI, Todoist Pro with AI features, Linear instead of Todoist, Craft instead of Obsidian — you can easily double that. And this doesn't include communication tools, cloud storage, or any professional software. This is just the personal productivity layer.
More insidious than the cost is the cognitive overhead. Each of these apps has its own onboarding model, its own concept of what a "project" is, its own keyboard shortcuts, and its own data format. Keeping your task list and your notes and your habits conceptually aligned across three separate applications with three separate data models requires constant manual effort. The apps don't talk to each other. There's no link between a Todoist task and the Notion page it lives in. There's no way to see that your gym habit streak started the same week you committed to a fitness goal in your journal.
Why we ended up with this many apps
The fragmentation didn't happen accidentally. It's a predictable consequence of how the productivity SaaS market developed over the 2010s.
The first-generation productivity apps — Evernote, Wunderlist, Things — each solved one problem well. Evernote was for notes. Wunderlist was for tasks. Things was for personal task management on Apple devices. The category boundaries were clear, and the apps stayed in their lanes. Users assembled a stack by picking the best tool in each category.
Then funding rounds got bigger, teams expanded, and investors demanded growth. The natural way to grow a productivity app is to expand into adjacent categories — a task manager adds notes, a note app adds tasks, a note app adds a calendar, a calendar adds task management. Each expansion moved each app slightly out of what it did best and added complexity for users who didn't need the new features. The category distinctions that made the original stack sensible started to blur.
Meanwhile, new entrants launched with explicit all-in-one ambitions. Notion launched in 2016 with the premise that everything — wikis, databases, notes, tasks, calendars — could live in a single block-based editor. It was a genuinely new idea, and it grew rapidly. By 2024, Notion had over 30 million users and was attempting to be the operating system for knowledge work.
"Every app wants to be your everything app. But the more everything they become, the less good they are at any one thing — and the more dependent on them you become."
The consolidation trend: all-in-one is winning
The market data through 2024 is clear: users prefer consolidation. When a tool they already use adds a feature that's "good enough" compared to a specialist tool they'd have to pay for separately, most users switch. Notion's task database killed a segment of lightweight project management apps. Notion's calendar view eroded some standalone calendar tool usage. Apple Notes, bolstered by significant improvements in iOS 16 and 17, displaced paid note apps for a meaningful portion of the user base.
This makes rational sense. Context switching between five apps to accomplish one cognitive outcome — "I had an idea, I need to capture it, turn it into tasks, track my progress, and review it later" — imposes a real cost. Research on task switching consistently shows that context shifts take 1–3 minutes to recover from cognitively. If you switch contexts between apps five times in a morning, you've lost 15 minutes to overhead before you've done anything substantive.
Linear, the project management tool favored by software teams, grew rapidly in 2022–2024 not because it was better than Jira (debatable) or Notion (more debatable) but because it was sufficiently good at issues, projects, and roadmaps in one coherent tool with no integration overhead. The value proposition was simplicity, not feature depth.
The risk of too much consolidation: vendor lock-in 2.0
But consolidation has its own failure mode, and it's a serious one. When you put everything — your notes, your tasks, your habits, your contacts, your documents — into one company's platform, you become more dependent on that company than you've ever been on any single vendor. If they raise prices, you have no easy exit. If they're acquired and the acquirer changes the product direction, your entire workflow is disrupted. If they go down, your entire productivity stack goes down simultaneously.
Notion's 2024 pricing changes illustrate this precisely. Users who had spent years migrating their notes, tasks, and databases into Notion found themselves faced with a choice: pay the higher price or undertake a months-long migration project to extract their data and rebuild their workflows elsewhere. Many paid the higher price. Not because it was fair or reasonable — but because the switching cost was so high that it wasn't worth fighting.
This is the "everything in one place" trap: the more you consolidate into a single proprietary platform, the more that platform can extract from you over time. Your data becomes the leverage they hold.
A different model: modular plugins, one price, your data
Bun Agents was designed specifically to resolve this tension. We want to be an all-in-one productivity suite — tasks, notes, habits, journal, bookmarks, time tracking, and more — because we believe integration across these tools genuinely improves your workflow. A task that links to a note, a habit that connects to a goal, a journal entry that references a project: these connections are valuable, and they're only possible when everything lives in the same system.
But we didn't want to recreate the vendor lock-in problem. So instead of a monolithic app with one data model you can't escape, we built a plugin system where each tool owns its schema but everything shares a single local SQLite database that you own. You can export the entire thing as a .sqlite file any time. You can query it directly if you're technical. You can open it with any SQLite client. The data portability is built into the architecture, not bolted on as an afterthought.
And there's one price — $1.99/month — that covers every plugin, every feature, and every future update. We don't have a "notes are free but tasks cost extra" model. We don't have an AI tier that's separate from the productivity tier. We don't have a sync plan that's separate from the base plan. One price, everything included, your data always accessible and exportable.
The productivity app market in 2025 has a clear direction: consolidation. But the question of whether that consolidation happens on terms that benefit users or on terms that benefit vendors is still being decided. We're trying to show that it can happen on terms that benefit users — if the app is built local-first, priced honestly, and treats your data as yours rather than theirs.
If you're tired of tracking five subscriptions, context-switching between apps that don't talk to each other, and waking up to find your notes unavailable because a server is down somewhere — we built Bun Agents for you.