Comparison

Zero Note vs Basalt Cobalt

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

Head to head
About

Zero Note

Securely share encrypted notes that automatically disappear after being read or based on custom rules. Options include self-destruction by views or time, location-based access control, and email notifications upon opening. Access notes from any device via a keyboard extension.

Highlights
  • Self-destruct by views
  • Self-destruct by time
  • Location-based access control
  • Email notifications on opening
  • Keyboard extension access
  • Audit trail
Read full description

Zero note: Self-destruct shareable encrypted notes Think of it's a way to share one time secrets, one time confidential notes with others that disappears after its been read or based on your self-destruct rules. A secure way to share a private encrypted note that self-destruct automatically based on your own terms: 1. Self-destruct by views 2. Self-destruct by time 3. Whitelist by location, country or anywhere 4. Get notified by email when it is opened by the recipient 5. Accèss Zero Note from anywhere using the keyboard extension. 6. Audit Trail note when it was first seen and last seen.

About

Basalt Cobalt

Features
Read full description

Most smartphone users carry at least three or four recurring subscriptions they signed up for months ago and have since forgotten about. Some of these are still worth paying for. Others have quietly outlived their usefulness while continuing to drain your account every billing cycle. This app exists to make the distinction visible and actionable. It tracks all your recurring charges in one place, flags the ones that have not been actively used recently, and presents your full subscription landscape in a format that makes comparison and decision-making straightforward. The goal is not to eliminate subscriptions — it is to make sure every one you keep is one you would actively choose to start again today if you were starting from scratch. Use it once a month, or whenever you notice your bank balance falling faster than expected.

Screenshots

Zero Note4 screens
Basalt Cobalt4 screens

Verdict

The call

The clearest difference is in-app purchases: Basalt Cobalt at none against Zero Note's 2. Basalt Cobalt also leads on iOS requirement (15.0 vs 18.0). Zero Note's advantage is ads (none vs shown). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Zero Note sells 2 one-off in-app purchases. Basalt Cobalt asks for nothing beyond the download.

Scorecard3 real differences · 6 level
Zero Note versus Basalt Cobalt: the parameters behind the verdict, then further details
ParameterZero NoteBasalt Cobalt
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 days—
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size13 MB15 MB
Age rating17+4+
DeveloperPradeep BuruguJeneta Rose King

In-app purchases

2 purchases

Zero Note

One-time2
  • Zero Note Lifetime Basic$9.99
  • Zero Note Lifetime Pro$12.99
None

Basalt Cobalt

No in-app purchases

Questions

Is Zero Note free?
Zero Note is free to download, with in-app purchases available.
Is Basalt Cobalt free?
Basalt Cobalt is free to download, with no in-app purchases.
Do Zero Note or Basalt Cobalt have ads?
Basalt Cobalt shows ads; Zero Note does not.

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