Zero Note vs CaseStamp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Self-destruct by views
- Self-destruct by time
- Location-based access control
- Email notifications on opening
- Keyboard extension access
- Audit trail
Read full descriptionHide 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.
CaseStamp
Read full descriptionHide full description
Some things you only get one chance to prove. CaseStamp makes sure you can. Free to download and free to document — everything you capture stays on your device at no cost. When you're ready to share or export your record, one $9.99 unlock covers it, permanently. No subscription, no per-report fees, no renewals. CaseStamp is your personal proof machine. Whatever you need to capture, remember, or be able to show later — do it the instant it happens. CaseStamp stamps every entry with the exact time you saved it. That's the point. FREE TO DOCUMENT - Unlimited cases and unlimited entries - Locked timestamps — every photo, video, note, and logged conversation is stamped the moment you save it, and sealed against tampering afterward - Photos and video with GPS — tagged with the time and your location. Video includes audio — know your local recording consent laws - Tamper-evident by design — every photo and video gets a SHA-256 fingerprint the instant it's saved. If even one byte of that file changes later, it's detectable - Know where each photo came from — entries show whether a photo or video was captured in CaseStamp or added from your library - Communication log — who you talked to, when, how you reached them, their contact info, any reference number, and what was said - Notes where you need them — a running narrative for the whole record, plus a short note on any individual photo or video - One-touch dates — tap any date field for a quick calendar picker, no typing required - Status tracking — mark each case Open, In Progress, No Action, or Resolved, with a days-open counter - Organize by situation — housing and landlord issues, workplace, insurance claims, vehicle incidents, purchases and warranties, service providers, medical billing, neighbor and HOA disputes, public infrastructure, government agencies, property, incidents, or other UNLOCK SHARING & EXPORT — $9.99 ONCE One purchase covers every way to get your record out of the app, forever: export and print the formal PDF report, share an individual photo or video, and copy your report as text. No subscription, no renewals, no charge per document. Your exported report is clean and formal — every entry numbered in order with its timestamp, GPS coordinates and accuracy radius where available, and file fingerprint, your photos embedded, and your logged conversations underneath. Share it with your photos and video attached, save it as a PDF, or print it. Ready for whoever needs to see it. Anyone who receives your report can verify it themselves. The SHA-256 fingerprint printed beside each entry can be checked with a command already built into any computer — no app, no account, and no CaseStamp required. Your report keeps working whether or not we do. YOUR DATA STAYS YOURS Everything lives on your phone. No account. No sign-up. No cloud. No servers. No analytics. No tracking. Nothing you log ever leaves your device unless you choose to send it. Works completely offline — in the parking garage, on the back road, in the basement with no bars. Document anything. CaseStamp remembers exactly when. CaseStamp is a record-keeping tool. It does not provide legal advice and does not guarantee any record will be accepted as evidence in any proceeding. You're responsible for gathering information lawfully. See our privacy policy and terms at www.casestamp.com
Screenshots
Verdict
The clearest difference is in-app purchases: CaseStamp at none against Zero Note's 2. CaseStamp also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). Zero Note's advantage is update cadence (every 3 days vs every 9 days). On price and ads 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
Both are free to download. Zero Note sells 2 one-off in-app purchases. CaseStamp asks for nothing beyond the download.
Zero Note ships an update every 3 days, CaseStamp every 9 days. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.
| Parameter | Zero Note | CaseStamp |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 8 MB |
| Age rating | 17+ | 4+ |
| Developer | Pradeep Burugu | Jesus Cardenas |
In-app purchases
Zero Note
- Zero Note Lifetime Basic$9.99
- Zero Note Lifetime Pro$12.99
CaseStamp
No in-app purchases









