Comparison

Danger Notes vs Synapse

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

Head to head
About

Danger Notes

This app is designed to combat writer's block by requiring continuous typing to save your work. If you stop typing, all unsaved progress is permanently deleted, encouraging a consistent writing flow.

Highlights
  • Continuous typing required to save
  • Work deleted if typing stops
  • Fights writer's block
  • Encourages writing flow
  • Suitable for essays, books, and lyrics
Features
Read full description

Don’t stop typing. If you do, all your work will disappear and be gone forever. Danger Notes is the ultimate writing tool to help fight writer’s block. Whether you are writing a term paper, an essay, a book, your best-man speech, promising rap lyrics or just free writing, Danger Notes will help you fight writer’s block by forcing you to keep writing in order to save your progress from being deleted. The theory behind this wonderful writing tool, is that by pressuring you to keep writing, you will be forced to formulate an actual flow of written work instead of just staring at a blank document for 2 hours with no progress to show for. The more words you type the easier it will be to break past your writer's block and keep typing. Break writer's block with Danger Notes.

About

Synapse

This app helps you stay connected with the people who matter most by remembering important details and suggesting when to reach out. It provides gentle nudges and conversation starters to bridge the gap between wanting to connect and actually doing so.

Highlights
  • Personalized contact reminders
  • Remembers key personal details
  • Customizable contact frequency
  • Gentle nudges for outreach
  • Conversation starter suggestions
  • Privacy-focused design
Features
Read full description

You think about someone. An old friend, a cousin, a coworker you really got along with. You think, "I should reach out." And then you don't. It is not because you stopped caring. Life just got busy. A week turned into a month. Now it feels a little awkward, so you put it off again. Synapse helps make that first step easy. It is a simple, warm app for the people who matter to you. Family, friends, your partner, the people you work with. It is not a contact list and it is not another app sending you reminders you ignore. It is quieter than that. You add the people you care about, and Synapse helps you remember the small things. Their kid's name. The big thing happening at their job. What they are going through right now. You choose how often you want to stay in touch with each person. Some people you want to talk to every week. With others, a few times a year feels right. Synapse keeps track, so you do not have to. And when it is time to reach out but you are not sure what to say, Synapse gives you a gentle nudge and a place to start. No pressure and no guilt. Just a little help turning "I should text them" into actually texting them. The name comes from the brain. A synapse is the small bridge where one part connects to another. That is what this app is. A small bridge that helps connection happen. If you have ever wanted to be a better friend, a more present partner, or someone who calls home more often, and you just needed a little help getting there, this was made for you. The people you care about matter. Synapse helps you stay close to them. Privacy Policy: https://synapsebond.com/privacy-policy Terms of Use (EULA): https://synapsebond.com/terms-of-service-2

Screenshots

Danger Notes4 screens
Synapse4 screens

Verdict

The call

The clearest difference is ads: Synapse at none against Danger Notes's shown. Synapse also leads on rating (5.0 vs 4.8) and iOS requirement (15.1 vs 17.0). Danger Notes's advantage is ratings volume (2.3K vs 4). On price, update cadence, in-app purchases and monetization model 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

Both are free to download. Danger Notes sells 5 one-off in-app purchases and Synapse sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Synapse holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Danger Notes has 2.3K ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Danger Notes ships an update every 10 days, Synapse every 11 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Danger Notes versus Synapse: the parameters behind the verdict, then further details
ParameterDanger NotesSynapse
PriceFreeFree
Rating4.8 (2.3K ratings)5.0 (4 ratings) — better
Positive reviews83.7% of reviews—
Number of ratings2.3K — better4
Update frequencyEvery 10 days — betterEvery 11 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size14 MB58 MB
Age rating4+12+
DeveloperVillegas Ventures LLCHovik Apinyan

Customer experience

Danger Notes

All ratings2,294 ratings
Positive95.7%
Neutral2.5%
Negative1.8%
Written reviews129 reviews
Positive83.7%
Neutral7.8%
Negative8.5%

Synapse

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Danger Notes

Reported bugs

3 issues
  • Accidental deletion of work
  • Overlapping text when reaching page limit
  • Glitches after updating to iOS 16

Requested features

7 requests
  • Add writing prompts
  • Implement a pause/resume function
  • Provide formatting options
  • Allow setting word count goals
  • Add a way to export or share written work
Show 2 more
  • Offer a desktop version
  • Implement a daily writing reminder

Synapse

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Danger Notes

One-time5
  • Support Danger Notes via a Tip$0.99
  • Support Danger Notes via a Tip$1.99
  • Support Danger Notes via a Tip$2.99
Show 2 more
  • Support Danger Notes via a Tip$3.99
  • Buy Me Coffee$4.99
2 purchases

Synapse

Subscriptions2
  • Synapse Premium14 Days trial$6.991 Month
  • Synapse Premium1 Month trial$59.991 Year

Questions

Is Danger Notes free?
Danger Notes is free to download, with in-app purchases available.
Is Synapse free?
Synapse is free to download, with in-app purchases available.
Which has better reviews, Danger Notes or Synapse?
Synapse is rated higher. Danger Notes averages 4.8 out of 5 from 2.3K ratings, while Synapse averages 5.0 from 4 ratings.
Do Danger Notes or Synapse have ads?
Danger Notes shows ads; Synapse does not.
Which is updated more often, Danger Notes or Synapse?
Danger Notes ships an update every 10 days, and Synapse every 11 days. Most recently, Danger Notes was updated on October 25, 2026 and Synapse on October 24, 2026.

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