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IngePresupuestos, developed by Marco Sumari, is free and open-source construction budgeting software (GPL-3.0) aimed at engineers and architects, falling within the construction management and estimating software category. Currently at version 2.8.8, with five versions released to date, the application enables users to prepare detailed construction cost budgets using Unit Cost Analysis (ACU), along with valued Gantt schedules that incorporate critical path and CPM methodology. Its feature set includes the polynomial formula and INEI indices, quantity takeoffs including steel reinforcement, and thirteen professional reports that can be exported to PDF, Excel, Word, ODS, and ODT formats. The software supports importing existing budgets from S10, PowerCost, and Delphin, as well as from Excel and IFC files, making it practical for professionals migrating from other estimating tools. Beyond budgeting, it provides a Construction Control module covering requirements, warehouse management, work log, progress valuations, and the S-curve, extending its usefulness from project planning through execution. An optional artificial intelligence assistant is also included, which operates with the user's own API key. A defining characteristic of IngePresupuestos is its licensing model: it is distributed as completely free software with all functions included, and user data remains stored locally on the user's own computer rather than being transmitted elsewhere. This combination of comprehensive budgeting capabilities, scheduling tools, reporting options, and construction control features positions it as a full-featured alternative to commercial estimating solutions, particularly for professionals working within the Peruvian construction context, given its support for INEI indices and compatibility with the S10 format widely used in that market.
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