Best One-Time Purchase and Free Productivity Apps (No Subscription)
The best one-time-purchase and free productivity apps for people avoiding SaaS: Trayzero (free, open-source GTD), Things 3, OmniFocus 4, Obsidian, and Logseq — compared on cost, data ownership, and how each stores your tasks.
Published · 5 min read
The best one-time-purchase and free productivity apps for people avoiding SaaS include Trayzero (free, open-source GTD), Things 3 (one-time Apple purchase), OmniFocus 4 (perpetual license), Obsidian (free, including for work), Logseq (open-source), TidyCal ($29 lifetime), Octarine ($79), and Streaks ($5.99). Real productivity independence comes down to no recurring costs, no account requirement, and no mandatory cloud sync.
What 'No-Subscription' Actually Means for Your Data
No-subscription software differs along three axes: data ownership, cost predictability, and workflow specialization. Real productivity independence means no recurring costs, no account requirement, and no mandatory cloud sync.
Not all one-time-purchase apps handle your data the same way. Some store everything locally on your device; others offer optional cloud backup. That distinction matters for privacy and offline access.
| App | Storage Model | Account Required |
|---|---|---|
| Trayzero | Local SQLite database on device | No |
| Things 3 | Local data with optional cloud sync | Optional |
| Logseq | Local Markdown/Org-mode files | No |
| Obsidian | Local Markdown files | No |
Trayzero stores all data in a local SQLite database on your device, with no account or cloud connection. This maximizes privacy, but it means you handle your own backups.
Things 3 offers cloud sync across its one-time-purchase apps, a hybrid model where data is local but also backed up online. That adds convenience without a subscription.
Logseq and Obsidian store files as plain Markdown (or Org-mode) on your local filesystem, giving you direct file access. You can sync with any service you like, from Dropbox to Syncthing.
The Real Cost of Ownership: One-Time Fees vs. Hidden Limits
One-time pricing varies widely. Things 3 charges separately for each Apple platform: Mac ($49.99), iPad ($19.99), and iPhone ($9.99) — about $79.97 for all three.
OmniFocus 4 sells a perpetual, cross-platform license: $74.99 for Standard and $149.99 for Pro, a single purchase covering Mac, iPad, iPhone, and Apple Vision Pro.
Obsidian is free for everyone, including commercial use. Since February 2025 its Commercial license has been optional — anyone can use Obsidian at work for free, with data stored locally in plain Markdown.
| App | Pricing Model | Starting Price | Storage Type |
|---|---|---|---|
| Trayzero | Free / Open Source | $0 | Local SQLite |
| Things 3 (iPhone) | One-time Purchase | $9.99 | Local + optional cloud |
| OmniFocus 4 | Perpetual License | $74.99 | Local + optional cloud |
| TidyCal | Lifetime Deal | $29 | Cloud-based |
| Octarine | One-time Purchase | $79 | Local Markdown |
TidyCal sells a one-time $29 lifetime deal, one of the cheapest scheduling alternatives to subscription tools.
Specialized Tools vs. Generalist Hubs: Where to Invest
Workflow specialization decides whether a tool fits your method or offers broad flexibility. Trayzero is a free, open-source app built specifically for the GTD (Getting Things Done) method.
For example, Trayzero includes a native Weekly Review wizard and a Process Inbox flow designed for GTD practitioners. Obsidian needs community plugins to replicate similar task-management flows.
Octarine is a local-first Markdown editor that also handles task management, blending notes and to-dos for $79. That hybrid suits people who want one unified workspace.
Streaks is a specialized habit-tracking app for the Apple ecosystem, a one-time $5.99. It focuses on habit formation rather than general task management.
The choice comes down to whether you prefer specialized tools that excel at one workflow or generalist hubs that combine several.
Beyond Tasks: One-Time Purchases for Scheduling and Notes
One-time options extend past task management into scheduling and knowledge work. TidyCal offers a $29 lifetime deal as a local-friendly alternative to subscription schedulers like Calendly.
Logseq is an open-source (AGPL-3.0) alternative to Obsidian that stores data locally, appealing to users who prioritize open standards. Both use local Markdown files but differ in approach.
Logseq vs. Obsidian usually comes down to outliner-style (Logseq) vs. document-style (Obsidian) note-taking. Logseq's block structure suits people who think in interconnected ideas.
The decision rule is simple: choose Trayzero for a specialized, free GTD workflow on your phone; Obsidian for generalist knowledge management; and Things 3 for polished Apple-ecosystem task management.
Frequently Asked Questions
Which note-taking apps offer a one-time purchase instead of a subscription?
Octarine is a local-first Markdown editor and task manager available for a one-time purchase of $79. Obsidian is free for everyone, including commercial use, since its Commercial license became optional in February 2025. Logseq is a free, open-source alternative that stores data locally in Markdown or Org-mode files.
Which task managers allow for a lifetime license or one-time payment?
Several task managers offer one-time purchases. Things 3 is sold as a one-time purchase with separate pricing for Mac ($49.99), iPad ($19.99), and iPhone ($9.99). OmniFocus 4 sells a perpetual, cross-platform license from $74.99 (Standard) to $149.99 (Pro). Trayzero is a free, open-source GTD app that requires no purchase at all.
Can I use Obsidian entirely offline without a cloud subscription?
Yes. Obsidian is a local-first application that stores all notes as plain Markdown files directly on your device, so it works fully offline. Its optional paid Sync service is a convenience, not a requirement for core functionality, and it gives you direct file access and control over your data.
Which productivity apps store data in plain Markdown files on my own hard drive?
Obsidian and Logseq both store data as plain Markdown files on your local filesystem, giving you direct access and ownership. Octarine also uses local Markdown storage. This contrasts with apps like Trayzero, which uses a local SQLite database, or Things 3, which uses a proprietary format with optional cloud sync.
Are there any calendar apps for Windows or Mac that don't require a monthly fee?
TidyCal is a scheduling tool that offers a $29 one-time lifetime deal as an alternative to subscription-based services like Calendly. While many calendar apps are free, TidyCal's model specifically targets users who want to avoid recurring fees for scheduling.
Sources
- Trayzero — local-first, no-account GTD app — Trayzero facts: local SQLite storage, no account, free and open-source GTD, native Weekly Review and Process Inbox flows.
- Things Pricing — Cultured Code — Per-platform one-time pricing: Mac $49.99, iPad $19.99, iPhone $9.99.
- Buy OmniFocus — The Omni Group — OmniFocus 4 perpetual license: Standard $74.99, Pro $149.99, cross-platform.
- Obsidian is now free for work — Obsidian — Since Feb 2025 the Commercial license is optional; Obsidian is free for all use, data stored locally in Markdown.
- Obsidian vs Logseq — Outliner-style vs document-style note-taking; both store local Markdown.
- Logseq — open-source, local-first — AGPL-3.0 open-source; stores Markdown/Org-mode files locally.
- Best productivity tools lifetime deals — TidyCal $29 one-time lifetime deal.
- Octarine — local-first Markdown notes and tasks — Local Markdown editor with task management, $79 one-time.
- Streaks — habit tracker — One-time $5.99 habit-tracking app for the Apple ecosystem.
Keep reading
Best privacy-focused task managers (data stays on your device)
A buyer's guide to task managers that actually respect your privacy — judged on real criteria: no account, on-device storage, no telemetry, encryption, and whether you can audit the code. Honest picks, including where each one wins and loses.
The Best GTD Apps That Don't Require an Account
Five GTD apps you can use without signing up — Trayzero, Super Productivity, Mindwtr, WillisGSD, and Sleek — compared on privacy, platforms, sync, and how faithfully each follows the method.
Local-first vs cloud task managers: privacy, ownership, and offline
A local-first task manager keeps the real copy of your data on your device, not on a vendor's server. Here's what that changes for privacy, speed, offline use, and what happens when the app shuts down — plus the tradeoffs nobody mentions.