Passforge

Passforge is different from every other project in this portfolio in one important way: it is ours. Appluex designed it, built it, runs it in production, and answers to its paying subscribers, which means every product decision on this page was tested against real usage rather than handed off at launch. For prospective clients, that makes it the most complete demonstration we have of what building and operating a SaaS product actually involves: the exam engine, the analytics, the billing, the operations, all of it.

The core of the product is realism. A full-length mock runs under the real exam's timing and question count, with a question navigator, flagging for review, and a countdown, because pacing is a skill and the only way to build it is under the clock. Study mode is the deliberate counterpart: untimed practice where every question carries a written explanation of why the right answer is right and the wrong ones are wrong, in both English and Spanish, so review teaches instead of just grading.

The platform is built multi-exam from the ground up. Every exam in the catalog gets its own workspace, its own question bank written to that exam's published content outline, and its own per-domain analytics, and the engine itself is fully parameterized by course: adding a new exam means adding its course record and its bank, not rebuilding the app. That architecture is why the catalog spans fields as different as behavior analysis and engineering fundamentals without the study experience fragmenting.

We hold the platform's claims to the same standard we ask of the questions. The readiness indicator is computed from a candidate's most recent full-length mocks against the exam's pass mark, and it will not call anyone exam-ready on the strength of a single sitting; short drills cannot inflate it. Promotional pricing displays only when a discounted price actually exists. It is a small discipline with a large consequence: when the dashboard says something, the data behind it is real.

Billing is fully custom and in-site, built directly on Stripe rather than around hosted checkout pages. Learners subscribe monthly or annually, or buy fixed-term access, switch plans, and manage their subscription without leaving the app, and the billing layer is defensively engineered: it checks Stripe itself before creating a subscription so a retried payment can never double-charge, and automated checks verify that every open exam sells at exactly its advertised price. That is the level of care a payments flow needs when the users are your own.