Sunlight

📱 iOS 独立开发｜一个人做了 6 款 App
🎸 在做：FretMaster 吉他指板训练
📈 进度：92 位付费用户 → 目标 $10k MRR
🧪 公开分享：收入截图 · 投放实验 · 踩坑复盘 👇

[Sunlight @undeadsun1]

@thsottiaux 傻B！

[Sunlight @undeadsun1]

@shuaibuilds 是的，配乐也是通过代码生成的

[Sunlight @undeadsun1]

给 FretMaster 做了一支 32 秒宣传片。
先记两根弦 → 用八度推导 → 拿真吉他练 → 从热力图找薄弱点。
画面由代码绘制，配乐为合成音频，非实机录屏。
想验证：短片能否让人看懂完整练习流程。你看完明白它怎么帮你练指板了吗？
#独立开发 #BuildInPublic

[Sunlight @undeadsun1]

@miles_mazy 是的 效果非常棒 https://t.co/PEu7YAwnAu

[Sunlight @undeadsun1]

grok bot 制作的, 有点超乎想象😮

[Sunlight @undeadsun1]

@luojiuyue https://t.co/2SOFmyQ0N4 我也试过了, 效果非常棒

[Sunlight @undeadsun1]

grok bot 制作的, 有点超乎想象😮

[Sunlight @undeadsun1]

@miles_mazy https://t.co/2SOFmyQ0N4 是的 ,效果非常棒

[Sunlight @undeadsun1]

grok bot 制作的, 有点超乎想象😮

[Sunlight @undeadsun1]

@nicekate8888 https://t.co/2SOFmyQ0N4, 我也试了 效果非常榜

[Sunlight @undeadsun1]

grok bot 制作的, 有点超乎想象😮

[Sunlight @undeadsun1]

给自己做的吉他训练 App FretMaster，再试一条内容。

之前“找 G”的视频在抖音到了 56 万播放。这次不只让观众找答案，还加了一个能带走的小知识：找八度时，跨到 B 弦为什么要多一品？

想验证：看懂一个规律，会不会比只完成挑战更让人愿意收藏。

先记录，过几天看结果。

#独立开发 #BuildInPublic

[Sunlight @undeadsun1]

@colour878702 @Vincent_AINotes @grok 我测试了, 效果很OK

[Sunlight @undeadsun1]

grok bot 制作的, 有点超乎想象😮

[Sunlight @undeadsun1]

Find the next A—without counting frets.
A 15-second octave challenge for FretMaster, the guitar practice app I'm building. Did you get the second one before the reveal?
Code animation + synthesized plucks.
#Guitar #Fretboard #BuildInPublic

[Sunlight @undeadsun1]

@Joshua_WD Thanks! The reveal timing is fixed in this demo. FretMaster adapts which notes you practise based on your performance, but doesn’t shorten the reveal time. Would you prefer an automatic timer or a pace you control?

[Sunlight @undeadsun1]

Found G? Now try C—without counting frets.

A 15-second challenge from FretMaster, the guitar practice app I'm building. Find a C, then try the 2nd string before the reveal.

Which string and fret did you spot first?

#Guitar #BuildInPublic

[Sunlight @undeadsun1]

Can you find G without counting frets? 🎸

I'm building FretMaster to help guitarists learn their way around the fretboard.

Where do you get stuck: switching strings or moving up the neck?

Try it: https://t.co/Gu16byB8WT

[Sunlight @undeadsun1]

@yklnss @alexcooldev Can you count how many downloads can be brought by so many views? What is the approximate conversion rate?

[Sunlight @undeadsun1]

Lab Report 15: Emotion > Numbers
Tested win feedback in FretMaster (14d retention):
❌ A (silent +19%): 47%
✅ B (subtle “You nailed it” + glow): 73% (+55%)
Users don’t want another number.
They want to feel they’re winning.
One emotional hit beats a hundred stats.

[Sunlight @undeadsun1]

Lab Report 14: Victory Flash > Dashboard
Tested main screen in FretMaster (14d retention):
❌ A (full dashboard): 46%
✅ B (instant victory flash): 72% (+57%)
Users don’t want plain wins.
They want to feel the victory flash.
One flash beats a dashboard.
#AppGrowth #IndieHackers

[Sunlight @undeadsun1]

Lab Report 12: Subtle Animation > Static Dashboard
Tested main screen in FretMaster (14d retention):
❌ A (static dashboard): 44%
✅ B (smooth progress glow animation): 70% (+59%)
Users don’t want flat data.
They want to feel the win build up.

[Sunlight @undeadsun1]

Lab Report 11: Glow Win > Dashboard
Tested main screen in FretMaster (14d retention):
❌ A (full dashboard): 43%
✅ B (green glow “+19% today”): 69% (+60%)
Users don’t want data overload.
They want to feel the win glow.
One glow beats a dashboard.
#AppGrowth #IndieHackers #guitar

[Sunlight @undeadsun1]

Lab Report 10: Big Number > Dashboard
Tested main screen in FretMaster (14d retention):
❌ A (full dashboard): 42%
✅ B (huge “Today +17%”): 68% (+62%)
Users don’t want charts.
They want to feel the win.
One big number beats a dashboard.
#AppGrowth #IndieHackers #FretMaster