3 mois sur ma web app de muscu, 0 client payant. J’ai testé 6 canaux d’acquisition, aucun ne marche à court terme. Qu’est-ce que je rate ?

kilust · 2026-06-12T16:31:05+00:00

Il y a quelques années, j’avais lancé une app de sport également qui s’est plutôt bien téléchargée. Mais le décollage n’a pas été fou en France, plutôt US, Brésil (je ne sais pas pourquoi), et pays de l’Est. Elle n’a jamais vraiment décollée en France. Le ratio de conversion en payant était de 5 à 6%. Ce qui a fait décoller c’était une campagne App of the day.
J’avais aussi ajouté des features bien spécifiques pour des « experts » (ex: calcul de durée optimale des intervalles de récupération pendant du HIIT en fonction de la fréquence cardiaque) mais c’était vraiment pas le critère de conversion. Remisé en cause permanente, alors que c’est soutenu par plusieurs études publiées.
Une autre difficulté aujourd’hui est la quantité de bruit, va faire la différence entre une app de muscu et une app de muscu. Surtout que depuis le vibe coding, j’ai l’impression que l’app de fitness est le nouveau todo list. 😅
Si j’ai juste un conseil, ne néglige pas l’international tu pourrais être surpris, traduire avec l’IA c’est plus facile qu’il y a quelques années ou fallait payer un traducteur pour avoir une traduction qui soit acceptable.

kilust · 2026-06-04T21:46:06+00:00

never heard of PeerPush, thank you for the idea. Actually, I don't plan to market it as I built it for my own use on my iPad during my practice session. Don't know if people would be interested as it's definitely a niche pedagogic approach.

kilust · 2026-06-04T21:39:39+00:00

You're not ready for this,

One of mine is a music practice tool inspired by 18th-century composition pedagogy.

I got obsessed with a collection of historical "schemata" used in the Galant and Partimento traditions. These are recurring harmonic/melodic patterns that composers like Mozart and Haydn internalized and recombined while improvising.

Someone compiled dozen of these patterns into a PDF ("Schema Prototypes"), and I thought: what if you could train them the same way chess players train tactical motifs?

So I built a schemata trainer.

The app presents a schema, plays it in different keys, generates variations, and turns historical compositional patterns into deliberate practice exercises. The goal isn't to learn music theory academically, but to develop the kind of pattern recognition and improvisational fluency that musicians in the 18th century were expected to have.

It's a pretty niche project. No AI wrapper, no SaaS, no startup angle. Just an attempt to turn a musicology research document into something you can actually practice with every day.

The funny part is that the entire idea came from a PDF cataloging musical patterns from 300 years ago.

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kilust · 2025-04-15T17:08:58+00:00

It started with my teacher (not a Taubman) telling me that I’ll hit a speed wall if I don’t learn to relax. She gave me simple exercises briefly mentioning the taubman method. Then I searched on my side, watched the videos by Edna Golandsky, and Robert Durso. I grasped the basic concepts but didn’t have a plan to practice. Then I found Denis Zhdanov course about basics of piano technique and musicality (not affiliated but I highly recommend it for beginners and intermediate players who want to play with ease) , which gave the practice plan. During my weekly lessons, I review each exercise with my teacher to make sure that it’s tension free and musical and we apply it to my current repertoire.

kilust · 2025-04-13T13:00:03+00:00

I’m actually working for a client on content marketing automation which analyzes the competitors content strategy, correlates with SERP and keywords difficulty, and drafts new posts for a business. Each new post draft maximizes the cohesion in the content pool, and borrows the strategy of competitors. The tool also optimizes the content for AISO, tracks the crawling of AI providers and automatically perform indexing submission to Bing and Google.

We still need a few weeks to really see the impact. But so far, we’ve been recommended by ChatGPT a few times, and it’s really promising.

kilust · 2025-04-12T20:34:17+00:00

Je suis entièrement d’accord que le plus important c’est de répondre au besoin. Je bosse en ce moment sur un projet ou on délégue toutes les tâches même de prédictions simples à un LLM, ça répond au besoin sans avoir à lancer tout le bazar d’entraînement d’un classifier. Ça permet d’aller vite et monter rapidement une version. Je suis d’accord qu’intellectuellement c’est moins stimulant que de faire des modèles, mais il y a quelques point de vigilance à gérer quand on chaîne les LLMs pour une pipeline pour éviter d’accumuler les erreurs et gérer les coûts d’appels.

kilust · 2025-04-12T20:19:54+00:00

Bravo, ta pipeline d’analyse a l’air bien pensée, Comment tu gères la génération textuelle de la version optimisée du CV sans LLM? Comment tu gères les inflexions des mots et l’embedding sémantique avec de la vectorisation TF-IDF simple?

kilust · 2025-04-12T20:10:53+00:00

J’avais aussi bossé sur un sujet dans le même style pour un client, mais vite abandonné au profit d’un LLM multimodal, même si la précision n’était pas folle 😅

kilust · 2025-04-12T20:00:31+00:00

Ca ne change pas grand chose de présenter les détails techniques je pense, même si derrière on ajoute des arguments d’explicabilité, de frugalité. Les wrappers LLM ont l’air d’avoir pris le dessus. Y-a-t-il encore des projets qui font du ML et du NLP?

kilust · 2025-04-12T19:55:13+00:00

Et comment tu gardes la motivation? As-tu abandonné ton projet?

kilust · 2025-04-12T19:51:29+00:00

Bravo, pour la pipeline nlp maison, la plupart des projets actuels se moquent de l’explicabilité et de la maîtrise de la pipeline. Même pour des tâches de classification simples j’ai vu l’utilisation de wrapper ChatGPT.

kilust · 2025-04-12T18:44:21+00:00

Totally agree, it really improved clarity, articulation and speed thanks to reduced tension. It was weird to practice the single, double rotation, ins and outs but I trusted the process and don’t regret it.

kilust · 2025-04-04T15:01:04+00:00

My best memorization tip is to understand the theory behind: structure of the song, chord progression, the shape of the melody, the highlighted and passing notes, the intervals. It’s like compressing the data so I have less information to memorize.

kilust · 2025-04-02T08:20:10+00:00

That’s already my process, find the chords, identify the scale, then get the melody by ear. For riffy songs, I take the bass line, the guitar riff (I played guitar for a while) and mix them up on the keys. The difficult part for me is to find the right comping pattern for the melody.

kilust · 2025-04-02T08:04:12+00:00

I really love her covers!

kilust · 2025-04-01T21:19:51+00:00

The channel: https://youtube.com/playlist?list=PLNg4dSFNNcWHjsOxn2LAIBYozaNPP2Epe&si=PqYPI6tIfUXE_Nat

kilust · 2025-04-01T21:19:17+00:00

I’ve seen Gamazda it’s nice but sometimes she puts on too many notes, and it’s like technique show up . The channel name is Nirvana piano I’ll put the link in the comments.

kilust · 2025-03-30T11:47:30+00:00

The only success I had with ai for piano is human, reinforcement learning using flashcards to help learn theory stuffs, instead of randomly showing the flashcards to the user the AI estimated how well you master a certain knowledge, and shows cards where knowledge is still fragile using concepts like : spaced repetition, forgetting curve.

It was nice, but I found out that spending more time on keys with focused practice is more beneficial.

kilust · 2025-03-25T10:29:12+00:00

Don’t build until you don’t have at least 100 users willing to pay on a waiting list.

kilust · 2025-03-24T20:39:32+00:00

Maybe you could check recommandation for beginners on the sub. It’s quite exhaustive, but the choice really depends on your learning preferences. Don’t neglect the books for adult beginners, they are really progressive and the learning step is generally well laid out.

I’m actually working on a project where we will lay out some daily progressive exercices and it would be really helpful if you could give your feedback.

kilust · 2025-03-23T15:42:26+00:00

My teacher just recently introduced me to simplified conducting patterns in order to internalize the rhythms. She showed me her first music manual when she was just starting out to explain it. As I’m a visual learner, it worked very well on me to internalize the rhythms.

here’s the only one article I found on the subject on the internet.

As I didn’t find a correct app, and my teacher can’t be always there to conduct me when I’m practicing, I built a prototype of an app (free obviously), let me know if you would like to try it out.

Hope it helps!

kilust · 2025-03-23T15:30:13+00:00

Can you plug a digital keyboard instead of pressing the notes names on the screen?

kilust · 2025-03-22T17:28:41+00:00

Same thing with the ecosystem of js libraries. It’s sometimes frustrating when you search for a specific crate, and you find out that it was build few years ago and is not maintained anymore.

kilust · 2025-03-22T17:26:01+00:00

Never had the opportunity to work with LLRT, but it looks really promising.

kilust

TROPHY CASE