DopamineOS vs Samon 砂紋
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DopamineOS
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DopamineOS is a tiny fake phone, living inside your real one. Open it and you get a whole home screen of glossy, useless apps — a feed that never ends, a stock market for coins that aren't real, a food app that never actually delivers, even a music player full of songs that don't exist. Every tap pays out in Sparks, a pretend currency you can hoard, spend on cosmetics, and absolutely never cash out. It's all the satisfying little dopamine loops of modern apps — the pulls, the wins, the streaks — with the manipulation surgically removed. ALL THE DOPAMINE • LikeLoop — post nothing, get adored anyway • DoomScroll — an infinite feed of harmless nonsense • HypeTrader — get rich in a market that isn't real • CraveCart — order food that never comes (you keep the calories and the cash) • Dopify — a music app playing endless lo-fi loops by artists who don't exist • …and a dozen more: SnackGame, SwipeHeart, MoodWeather, StreakForge, and friends NONE OF THE DAMAGE • No ads. No accounts. No logins. No tracking. • Nothing is ever uploaded — everything lives on your device. • And the headline feature: no real notifications, ever. The fake notifications are pure in-app theatre. The moment you put the phone down, it goes completely silent. MAKE IT YOURS • Earn Sparks everywhere and spend them on wallpapers, icon packs, frames, and sound packs in the Vault. • Keep only the dopamine you want — remove any mini-app from your home and add it back anytime from Settings. • Two looks: a calm, low-stimulation "Quiet Premium" theme (default) and a vivid neon mode. ONE HONEST TRANSACTION There's a single optional one-time "Pro" unlock for cosmetics, the full app lineup, and a Spark bonus — no subscriptions, no per-app upsells, no luck-based nonsense. The whole joke would fall apart otherwise. Put down the apps that take. Pick up the one that just gives.
Samon 砂紋
Experience tactile textures on your screen that respond to your touch with haptic feedback. Explore a variety of black and white patterns, from simple grids to complex mazes, each with unique sound and vibration responses.
- Generate on-demand black and white textures
- Haptic feedback for tactile sensations
- Unique sound and vibration responses
- Directional texture interaction
- No ads, tracking, or accounts
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Samon (砂紋) are the patterns raked into the gravel of Japanese stone gardens. Samon turns your screen into a surface you can feel. Every texture is generated in black and white on the spot: checkers, corduroy, wire grid, domes, vinyl grooves, rubber, waves, sand, bricks, a maze, zigzags, a rasp, a fingerprint, dry mud, bubble wrap, a music-box comb and a gradient. Drag your finger across it and the Taptic Engine plays back what is under it. Edges click as you cross them, and the rhythm follows your speed. Domes swell under your fingertip instead of clicking. Metal rings, stone knocks, felt is soft. Rubber grips and judders, and squeals when you go fast. Mud cracks and bubbles pop the first time you touch them, and stay broken. Each tine of the comb rings at its own pitch. Direction matters too: the rasp is smooth one way and catches the other. Tap NEW TEXTURE for another surface. No accounts, no ads, no tracking. Nothing leaves your phone. Best on an iPhone with a Taptic Engine.
Screenshots
Verdict
The clearest difference is in-app purchases: Samon 砂紋 at none against DopamineOS's 1. Samon 砂紋 also leads on update cadence (every 4 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. DopamineOS sells 1 one-off in-app purchase. Samon 砂紋 asks for nothing beyond the download.
DopamineOS ships an update every 2 months, Samon 砂紋 every 4 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.
| Parameter | DopamineOS | Samon 砂紋 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 56 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Konrad Kern | The Cyan Zenith SL |
In-app purchases
DopamineOS
- DopamineOS Pro$1.99
Samon 砂紋
No in-app purchases









