Tamper-Evident Screen Recorder for Mac

The Problem

Cloud recording is an exposure.

Loom, Zoom, and Vimeo upload your screen recordings to a third-party server. For sensitive work, that's an exposure most people would rather avoid.

The conventional approach

Record a walkthrough, prep session, or review with a cloud-based tool. The file lives on a vendor's server — subject to third-party legal process, breach, and policies you don't control.

What Case Ledger does

The recording never leaves your Mac. It's cryptographically signed at the moment of capture, locked read-only, and entered into a tamper-evident audit log you can produce on demand.

Evidence Mode

Four safeguards, built in.

Toggle on Evidence Mode and every recording is captured under the same evidence-preservation protocol. No extra steps. No extra tools.

01 / Manifest

Recording manifest

Every recording produces a JSON manifest with timestamp, duration, file hash, app version, and machine identifier. The full provenance metadata, written to disk.

02 / Audit Log

Append-only audit log

A tamper-evident ledger of every recording. Hash-chained entries make modifications detectable. Export the log as a PDF whenever you need it.

03 / Signature

Secure Enclave signing

Each manifest is signed with a key generated and held in your Mac's Secure Enclave — the hardware-isolated chip Apple uses for Touch ID and Apple Pay. The key cannot be extracted, copied, or moved.

04 / Read-Only

Read-only finalization

When recording stops, the file is locked at the filesystem level. The original cannot be edited — only viewed, copied, or referenced.

A note on claims

Case Ledger provides artifacts and design choices that support evidence preservation workflows. It is not a substitute for legal advice or your organization's information governance policies. We do not guarantee admissibility — the legal call is yours to make.

The Record

What you'll actually see.

Three views — pre-flight, recording, and Evidence Mode active.
macOS 15+ · Apple Silicon · Build 1.0

Case Ledger pre-flight panel showing Screen, Webcam Frame, Bitrate, and Audio Monitor settings, with a Confirm session permission notice and a Start Countdown button

§ I · Preflight

Confirm the setup before you record.

One panel for screen source, webcam framing, bitrate, and live audio monitors. Verify everything's right, confirm you have permission to record this session, then start the countdown.

Pre-flight · screen · webcam · bitrate · audio

Case Ledger recording configuration panel showing recording name, capture area, output quality settings, and audio inputs with mic level

§ II · The Recorder

One window. Every choice in front of you.

Recording name, capture area, output quality, and audio inputs — all visible at the same time. No dropdowns to dig through. Configure once, record cleanly.

Configure · name · area · quality · audio

Case Ledger Evidence Mode dashboard showing four safeguards active: Manifest hash written, Audit log append-only, Signature via Apple silicon Secure Enclave, and File Lock read-only, with toggles for each and an External Timestamp option

§ III · Evidence Mode

Four safeguards, active on every recording.

Manifest hash, append-only audit log, Secure Enclave signature, and read-only file lock. Toggle Evidence Mode on once and every capture from that point ships with the full set of tamper-evident artifacts.

Evidence Mode · manifest · audit · signature · lock

Where It Fits

Built for evidence preservation workflows.

For people who care that a recording is unmodified, locally stored, and independently verifiable — whether for legal work, internal investigations, compliance review, or technical incident documentation.

§ I

Legal work product

Document walkthroughs, prep sessions, exhibit reviews, witness coaching — recordings that need to be locally controlled.

§ II

Internal investigations

Interview recordings, screen-shared evidence reviews, finding documentation — with a verifiable audit trail.

§ III

Compliance review

Procedure walkthroughs, training documentation, control reviews — without uploading sensitive screens to a vendor.

§ IV

Technical incident records

Bug captures, security incident screens, system state at a point in time — preserved with provenance metadata.

The Bargain

One purchase. No subscription.

Pay once. Own it. Update for free for the lifetime of the major version.

^$49

USD · one-time · macOS 15+ · Apple Silicon required

Unlimited screen recordings, all features
Evidence Mode — manifest, audit log, signing, lock
Webcam overlay, mouse highlighting, keyboard display
4K capture, custom bitrate, MP4 export
Free updates for v1.x
Email support

Download on the App Store

Available now on the Mac App Store. The free Case Ledger Viewer for independent verification is coming soon.

Counterclaims

Anticipated questions.

Q.01 How is the cryptographic signing handled?

On first launch, Case Ledger generates a signing key inside your Mac's Secure Enclave — the same hardware chip Apple uses for Touch ID and Apple Pay. The key is hardware-isolated and cannot be extracted, exported, or moved off the machine. Each recording manifest is signed with this key at the moment of capture. Anyone can verify a recording's signature; only your Mac can produce one. This is why Apple Silicon is required.

Q.02 Why Apple Silicon only? What about Intel Macs?

The Secure Enclave on Apple Silicon offers stronger key isolation than what's available on Intel Macs. We chose to build Case Ledger around the strongest hardware-backed signing available rather than ship a weaker version that would undermine the integrity story. If you're on an Intel Mac, the M-series MacBook Air starts at around $999 — or wait for v2, which we'll evaluate Intel support for once we see demand.

Q.03 Why not just use QuickTime?

QuickTime records. Case Ledger records and produces a tamper-evident local evidence package for each capture — a signed manifest, hash chain, read-only original, and audit sidecar. If you never need to demonstrate that a recording is unmodified, QuickTime is fine. If you do, that is what Case Ledger is for.

Q.04 Does this guarantee admissibility?

No. Case Ledger does not guarantee admissibility. Whether any specific recording is admitted depends on the case, the jurisdiction, the rules of evidence, and the court. What Case Ledger does is produce a tamper-evident local evidence package — signed manifest, hash chain, read-only original, audit sidecar — that supports verification workflows. The legal call is yours to make.

Q.05 What if I want a refund?

14-day refund, no questions asked. Email and it's done.