InputDojo vs Langusta

InputDojo and Langusta are both education & learning tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

InputDojo

The core loop is structured around proficiency levels: you work through vocabulary in context, get speech feedback on conversation practice, and the system reschedules reviews based on what you're actually forgetting. That beats flashcard apps that treat every word the same. The constraint shows up when you need niche language pairs or want to export your progress data — the vendor does not describe an open API, so your learning history stays inside the platform. Teams using this to supplement formal instruction get the most mileage; learners who want to pipe data into a custom dashboard hit a wall fast.

Langusta

The core loop is voice-first: you speak, the AI responds, and pronunciation and grammar feedback arrive during the conversation rather than after it ends. Sessions carry context forward, so vocabulary and error patterns from one conversation inform the next — which means you are not resetting every time you open the app. The vendor states sessions are capped in the free tier, so learners who hit a productive streak will find the clock working against them. No API is available, no self-hosted option exists, and there is no documented path for institutional or developer integration. For solo learners, that is fine; for anyone building a curriculum or embedding this in a product, it is a hard stop.

Attribute	InputDojo	Langusta
Pricing	Paid	Paid
Price	$7.99/mo	$14.99/mo
Free trial	14 days	No
Open source	No	No
Has API	No	No
Self-hosted option	No	No
Platforms	Web, iOS, Android	Web
Pros	Exam-aligned study plans for JLPT and HSK mean practice time maps directly to what standardized tests score, so you're not drilling vocabulary that won't appear on the test you're sitting. Vocabulary presented in native-media context rather than textbook sentences, which means words land with the register and colocation patterns you'll actually encounter in listening or reading sections. Instant speech feedback on conversation practice closes the gap that silent review apps leave — you hear whether your pronunciation is off before bad habits calcify. Spaced repetition tuned to individual mastery levels, so the system reschedules reviews based on where you actually struggle rather than applying a one-size decay curve to every learner. Mobile and web access from a single account, so review sessions fit around a schedule that doesn't include dedicated study blocks.	Inline pronunciation and grammar feedback during speech, so you correct errors in the moment rather than internalizing them through repetition before a review session catches them. Session-to-session context retention, which means vocabulary and recurring mistakes carry forward — you are not rebuilding familiarity with your own error patterns every time you log in. Unscripted spoken dialogue, so you practice the part of language learning that scripted apps skip: responding when you do not know what comes next. Free tier with a timed trial, so you can verify the voice interaction quality matches your accent and pace before committing to a subscription.
Cons	No API and no data export path: every progress metric, vocab list, and mastery score lives inside the platform. Learners or institutions that need to feed data into an LMS or run their own retention analysis have no route out — they're maintaining a parallel tracking system manually. AI-powered features — personalized plans, speech feedback — are paid-only features. The free tier does not deliver the core differentiator, which means evaluating whether the tool actually fits your learning style requires committing to a paid account. Learners whose goal is conversational fluency in an unsupported language pair, or who need a tutor-like correction model beyond speech feedback, will hit the ceiling of what a structured app can offer and move to a platform with live tutors or a larger language coverage list.	The free tier is time-capped per the vendor page, and a learner who hits a productive streak will run out of session before the practice feels complete — at that point the only path forward is a paid subscription or stopping mid-session. No API and no self-hosted option means any developer or institution that wants to embed conversational voice practice in their own product cannot use Langusta as a backend; they will need a tool with a documented API surface, and Langusta offers none. Progress data is locked inside the product with no documented export path, so a learner who wants to track improvement over time in their own system, or a teacher who wants visibility into a student's sessions, has no way to pull that data out.

Bottom line

InputDojo and Langusta are closely matched on pricing model, openness, and API availability — pick by feature set and platform support in the table above.

Frequently asked questions

What is the difference between InputDojo and Langusta?

InputDojo is Paid, while Langusta is Paid. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is InputDojo better than Langusta?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.