Here’s my own side project that’s been earning a bit on the side:

I built DedupX, a macOS app for finding duplicate and visually similar files fast - especially useful for photographers and anyone with big local storage collections.

What it does

- Exact duplicate detection using incremental hashing so it doesn’t have to fully load huge files.

- Perceptual image matching finds similar images even if they’re resized or lightly edited (not just byte-for-byte duplicates).

- Native macOS integration with a Finder right-click scan.

Why I built it: My brother kept running out of space because of tons of photos, and every existing tool I tried either missed similar images or was slow and clunky - so I spent a couple of weekends building something that felt fast, accurate, and native.

Business side

- Free trial (no CC required).

- Paid tiers: ~$5.99/yr or ~$16.99 lifetime.

Got positive feedback and 100+ paying users shortly after launch. Been growing steadily ever since.

Link: https://maheepk.net/projects/dedupx/

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istjohn 4 days ago | parent | next [-]

Please double your prices, at minimum. (And port to Linux, so I can use it. Just CLI would be great.)

	▲	technusm1 4 days ago \| parent [-]
		Making this cross-platform is definitely a goal I wanna work on, but I lack knowledge of desktop app development on Windows and Linux. I'm glad you think the app is cheap. Honestly I think the pricing is decent for the current set of features. I might revisit the price if I sneak in more features worthy of a higher price tag, but for now, it's good enough.

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alsetmusic 2 days ago | parent | prev | next [-]

Froze at 99% scan completion on M1 Max, 64GB RAM, 14.8.2.

	▲	technusm1 a day ago \| parent [-]
		Sorry about that - thanks for reporting it. I haven’t been able to reproduce a freeze at 99% yet. If you’re willing, could you share a bit more detail (approx folder size / number of files, and whether CPU or memory spiked near the end)? If you’re open to it, I’d also be happy to jump on a quick call or screen share to debug this together — totally optional. You can reach me at my support email mentioned in the About DedupX menu item. I’d really like to track this down and fix it.

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warangal 4 days ago | parent | prev | next [-]

How do you market it, through social-media or are there dedicated channels for sharing awareness for such Mac Apps, if you don't mind sharing?

	▲	technusm1 4 days ago \| parent [-]
		I mostly shared the launch post and ran promo campaigns on Reddit, ProductHunt, LinkedIn, Discord and even tried HN (got no replies here -‿-"). Since then, its mostly word of mouth. Thanks to my customers' feedback, I've made a lot of improvements to the app as well. Feels good getting positive feedback and hearing from people about their use-cases. :) Links: [1]: Launch Post: https://www.reddit.com/r/macapps/comments/1ok5zaq/comment/nm... [2]: ProductHunt: https://www.producthunt.com/products/dedupx [3]: Promo campaign on Reddit for Black Friday: https://www.reddit.com/r/macapps/comments/1paarc2/dedupx_50_... [4]: https://news.ycombinator.com/item?id=45763117

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nefrix 4 days ago | parent | prev [-]

Smart and affordable app.

	▲	technusm1 4 days ago \| parent [-]
		Glad you like it :)