Radar Sensor vs LockMemo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radar Sensor
Read full descriptionHide full description
Radar Sensor is a utility for installers, commissioning engineers, maintenance teams, and after-sales staff working with human and vehicle radar devices. Use Bluetooth to search for and connect to nearby supported devices, review device status and firmware version, read and write basic and advanced parameters, perform environmental and dynamic calibration, send control commands, and complete firmware upgrades and log tasks. Key features: • Search for and connect to radar devices • View device status, target information, and firmware version • Read and write basic and advanced parameters • Perform environmental and dynamic calibration • Upgrade firmware, view and upload logs • Open device instructions in the app This app is intended for use with compatible radar hardware.
LockMemo
Read full descriptionHide full description
Your memo. Yours alone. LockMemo is a private, on-device encrypted vault for passwords, 2FA codes, secure notes, file attachments, and recovery seed phrases. There is no LockMemo account, no LockMemo cloud holding your vault, no ads, and no analytics or crash-reporting SDKs. ONE VAULT FOR SENSITIVE DATA • Passwords and logins with custom fields, tags, and fast search • TOTP authenticator codes with QR scanning and Google Authenticator import • Private Markdown notes • Images, PDFs, and other file attachments encrypted inside your vault • BIP39 recovery seed phrases with extra safeguards when viewing PRIVATE BY DESIGN • AES-256-GCM encryption with Argon2id key derivation • Your master passphrase never leaves your device • Works fully offline • Face ID, Touch ID, and device biometrics for quick unlock • Auto-lock, clipboard auto-clear, and app-switcher blur for sensitive views • No advertising SDKs or behavioral tracking YOUR SYNC, YOUR CHOICE By default, your vault stays on your device. Optional LockMemo Premium unlocks backup and sync through a Git repository you control—GitHub, GitLab, Bitbucket, or your own server. The Git remote—whether a hosting provider or your own server—receives only encrypted data and obfuscated file names; it cannot read your vault. Premium is a one-time purchase, not a subscription. The local vault works without it. IMPORTANT SECURITY NOTE Your master passphrase cannot be recovered. If you forget it, no one can recover your vault. Keep a safe, independent backup of your passphrase and critical recovery information. Keep your passwords, codes, notes, and private files under your control.
Screenshots
Verdict
The clearest difference is in-app purchases: Radar Sensor at none against LockMemo's 1. Radar Sensor also leads on iOS requirement (13.0 vs 16.0). LockMemo's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads 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
Both are free to download. LockMemo sells 1 one-off in-app purchase. Radar Sensor asks for nothing beyond the download.
Radar Sensor ships an update every 2 months, LockMemo every 2 weeks. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.
| Parameter | Radar Sensor | LockMemo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, Mac |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 67 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | 正亮 黄 | NIXLIGHT TECHNOLOGY LIMITED |
In-app purchases
Radar Sensor
No in-app purchases
LockMemo
- LockMemo Premium (Lifetime)$9.99
Questions
Is Radar Sensor free?
Is LockMemo free?
Do Radar Sensor or LockMemo have ads?
Which is updated more often, Radar Sensor or LockMemo?
Other comparisons















