CogAtelier vs Lervath
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CogAtelier
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This is a standalone business management tool designed for restorers of antique automata and mechanical toys, as well as conservation institutions. It helps you digitize paper logs, blueprints, and handwritten notes. 【Restoration Workflow & Scheduling】 Create new restoration commissions and record details such as the client, automaton, labor hours, deposit, and delivery deadline. The app features ten built-in standard restoration steps; each step captures timestamps, damage details, and repair specifics, ensuring full traceability. The dashboard displays tasks by urgency, automatically flags overdue orders, and tracks active and completed jobs. 【Pickup SMS Notifications】 When a restoration is complete and ready for pickup, notify clients using customizable SMS templates that automatically populate details like names, automaton names, and addresses. Features include text preview and copying, integration with the system's SMS app for sending, notification archiving, and status updates to mark pickup completion. 【Client & Automaton "Mechanical Medical Records"】 Create client profiles with one-tap calling and automatic tracking of repair history. Automaton profiles store collection details such as era, origin, mechanism type, and materials; past restoration records generate an automatic timeline, creating a unique "mechanical medical record" for each piece. 【Local Data Security】 Data is stored entirely locally; no account registration is required. Supports one-tap JSON backups. Deletion of records is prevented if there are unfinished commissions, and the system automatically checks for duplicates when creating new records to avoid redundant entries. > Note: The app does not support automated background SMS sending; it relies on the device's native SMS application. If the device does not support direct integration, text can be copied and sent manually. All data is stored on the device; please export a backup before uninstalling the app.
Lervath
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Lervath — Typhoon Pre-Prediction & Preparation Tool Once a typhoon warning is issued, panic often sets in: forgetting to clear balconies, failing to reinforce doors and windows, scrambling to gather supplies, and being caught off guard by power outages. Lervath focuses on the window of time **before a typhoon arrives**, helping you systematically complete home risk self-inspection and advance preparations. Core Features Home Profile Record housing type, floor level, windows, balconies, surrounding environment and past power outage experiences as baseline parameters for risk prediction. All data is stored locally on your device only. Hazard Identification Self-Check An automatically adapted hazard checklist generated based on your home profile. High-rise residents will see hazards related to exterior wall brackets; bungalow users will see roof-related hazards. Tick the hazards present in your home. The app locally calculates an overall risk score and outputs a four-tier risk report: Low / Medium / High / Extreme. Risk Prediction Report A dashboard displays the composite risk score and risk level, summarizing every identified hazard. It gives general recommendations on how many days in advance preparations should start, with one-tap access to corresponding preparation tasks and supply lists. Advance Preparation Task Checklist To-dos are split into four phases: **3 days in advance / 2 days in advance / 1 day in advance / On the day of warning**. Tasks include balcony clearance, weatherstripping inspection, cross-taping window glass, evacuation route planning, and more. Higher risk levels unlock a more complete task list. Supports custom tasks, checkmark completion, reset, and text export (copy to clipboard). Emergency Supply Inventory Categorized supply lists for lighting & power, drinking water & food, first aid & protection, reinforcement tools, communications, with recommended quantities and notes (e.g., 2L drinking water per person per day). Higher risk levels add more recommended supplies; for example, high-risk scenarios include waterproof pouches, first aid kits and spare batteries. Custom supplies can be reused across reports. Emergency Response Handbook Six emergency scenarios: falling objects from height, water seepage through doors/windows, prolonged power outages, broken glass, standing water nearby, and being trapped indoors. Contains prohibited actions, response procedures and preventive tips for each scenario. Supports local search and one-tap navigation, with built-in emergency phone numbers (tap to trigger system dialing). Historical Self-Inspection Records Each self-inspection is automatically saved. You may review reports and update task and supply progress anytime. Duplicate self-inspections with identical content will be flagged to avoid bloated, redundant records. Our Boundaries - Does **not** provide meteorological data including typhoon tracks, wind speed or rainfall. Always refer to official warnings (permanent in-app reminder). - No account sign-up, no data upload. All data remains local and is deleted upon app uninstallation. Intended Users - People living in coastal typhoon-prone regions, especially those living independently for the first time - Users who want to create a simple, actionable typhoon preparation checklist for their parents - Those who want to prepare ahead each typhoon season but always miss key items Assessment results are for disaster preparedness reference only and shall not replace official disaster prevention guidelines and evacuation arrangements.
Screenshots
Verdict
CogAtelier and Lervath are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | CogAtelier | Lervath |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Daily |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 6 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Ngoc Minh Hoang | Khanh Linh Hoang Thi |
In-app purchases
CogAtelier
No in-app purchases
Lervath
No in-app purchases





