Comparison

Biological Prime Time vs SyncTasks

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

Head to head
About

Biological Prime Time

Read full description

Biological Prime Time: BPTF helps you find your productive hours. Log your energy, focus, and motivation, add optional activity notes, and compare your average ratings by hour. Your data is yours. Export all your entries as CSV for analysis in Excel, Numbers, Google Sheets, or your own tools. No account. No lock-in. HOW IT WORKS 1. Rate energy, focus, and motivation from 1 to 10. 2. Optionally add a short note about what you did in the past hour. 3. Save your entry and set reminders during your chosen tracking hours. 4. Review your hourly averages as you collect entries across multiple days. SEE YOUR PATTERNS View all three ratings together or compare them in separate charts. See how many entries and days contribute to your results. Gaps show hours you have not logged. Use your results to help choose when to study, do deep work, or handle routine tasks. Your patterns reflect your own ratings and become easier to interpret as you cover more days and hours. ADD CONTEXT TO YOUR RATINGS Record what you were doing alongside each check-in. Browse your entry history to revisit your ratings and activity notes. Prefer just the ratings? Turn off the activity note field in Settings. YOUR DATA, NO LOCK-IN Export your complete entry history as a CSV file, including dates, logged hours, energy, focus, motivation, and activity notes. Save a copy or share it with a tool of your choice for further analysis. Exporting leaves your entries in the app. SIMPLE, PRIVATE TRACKING Choose your tracking hours and reminder minute, and keep previous ratings selected for your next check-in. Tracking works offline, with no account or ads. Entries stay on your device unless you choose to export and share them. If you send feedback, your message and optional email are sent to our support service.

About

SyncTasks

This app offers a streamlined task management experience, syncing with Notion and Apple Reminders. It features a minimalist widget for distraction-free focus and a folder system for organization. It can also be used as a standalone to-do list.

Highlights
  • Two-way Notion sync
  • Apple Reminders integration
  • Minimalist home screen widgets
  • Folder-based task organization
  • Standalone to-do list mode
  • No ads or tracking
Features
Read full description

As a daily Notion user, I found the Notion mobile app to be too cluttered and overly complicated for simple tasks management. It is also severely lacking in widget integration which is a crucial part of the iOS experience. I have tried Todoist and TickTick with Zapier, but they lacked support for all the features I needed, AND THERE IS A SUBSCRIPTION?! I wanted a simpler, more integrated solution. That's why I built SyncTasks. Due to popular demand, I've added the option to use SyncTasks as a standalone to-do app without syncing with Notion. This can be especially useful for quickly tracking tasks like grocery lists and other on-the-go needs. Key Features of SyncTasks: Notion Integration: Two-way sync with your Notion databases. This feature also allows you to sync databases from multiple Notion Workspaces. Apple Reminders Integration: Two-way sync with your Apple Reminders. Minimal Task List Widget: My favorite feature! Inspired by dumb phones, this minimalist widget blends seamlessly with your wallpaper to create a distraction-free interface reminiscent of a dumb phone. Your home screen will display only your tasks, with no other distractions, so you can stay focused and get as much done as possible. Stay Organized: I've decided to go back to basics and stick with the trusty folder system to help you group your tasks and stay organized. You can also quickly filter and search through your tasks to find exactly what you need. Exclusive Membership Card: I absolutely love the feeling of getting something unique for myself. So, I've added this totally unnecessary but fun feature! When you first get your card after upgrading to premium (it's a one-time purchase, by the way—because I absolutely hate subscriptions), you can drag and shake it to unlock a series of randomized colors with different gradients on the card. This means your card will be unique to you and you alone. I know it's not essential, but it's kind of exciting, right? No ads. No tracking. Transparent update: Nobody likes being tracked, and I'm no exception. I've also included a Release Notes section in the app where I'll share all the new features, major bug fixes, and improvements with you. This keeps the update process as informative and transparent as possible. I'm doing this because I genuinely want to build and grow alongside my users. If you've encountered a similar issue with the Notion mobile app and are looking for a solution, want a way to stay focused and get things done, or just simply want to hang out, install SyncTasks and join me on this journey. I'll see you on the other side! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Biological Prime Time4 screens
SyncTasks4 screens

Verdict

The call

The clearest difference is price: SyncTasks at Free against Biological Prime Time's $4.99. Biological Prime Time's advantage is in-app purchases (none vs 5). On update cadence, ads, device support and iOS requirement 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

SyncTasks is free to download; Biological Prime Time costs $4.99 up front. SyncTasks sells 5 in-app purchases, starting at $3.99 per month. Biological Prime Time asks for nothing beyond the download.

UpkeepUpdate frequency

Biological Prime Time ships an update fortnightly, SyncTasks every 10 days. The most recent releases landed on November 2, 2026 and November 12, 2026 respectively.

Scorecard2 real differences · 8 level
Biological Prime Time versus SyncTasks: the parameters behind the verdict, then further details
ParameterBiological Prime TimeSyncTasks
Price$4.99Free — better
Rating—4.6 (359 ratings) — better
Positive reviews—68.5% of reviews
Number of ratings—359 — better
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size20 MB79 MB
Age rating17+4+
DeveloperWingmen OyToh Kar Le

Bugs and requests

Biological Prime Time

Not enough reviews yet to summarise bugs or requests.

SyncTasks

Reported bugs

4 issues
  • Tasks not syncing properly
  • Widget not displaying tasks correctly
  • App crashing after updates
  • Notification issues with repeat tasks

Requested features

4 requests
  • Add support for Notion calendar sync
  • Improve widget customization options
  • Introduce more view and filter options
  • Develop a desktop or web app version

In-app purchases

None

Biological Prime Time

No in-app purchases

5 purchases

SyncTasks

Subscriptions2
  • SyncTasks Pro (Monthly)$3.991 Month
  • SyncTasks Pro (Annually)$12.991 Year
One-time3
  • 7-day Free TrialFree
  • SyncTasks Pro$9.99
  • SyncTasks Pro (Lifetime)$34.99

Questions

Is Biological Prime Time free?
Biological Prime Time costs $4.99, with no in-app purchases.
Is SyncTasks free?
SyncTasks is free to download, with in-app purchases available.
Do Biological Prime Time or SyncTasks have ads?
Neither Biological Prime Time nor SyncTasks shows ads.
Which is updated more often, Biological Prime Time or SyncTasks?
Biological Prime Time ships an update fortnightly, and SyncTasks every 10 days. Most recently, Biological Prime Time was updated on November 2, 2026 and SyncTasks on November 12, 2026.

Other comparisons