S4_control vs Anchor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S4_control
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在这里你可以连接上音箱,里面有许多功能,比如音乐,麦克风,吉他音量都是可以调节的。在个别界面还有均衡功能,也还有见红音效,高中低音等。 让你无须接触蓝牙音箱,在一定距离内就可以控制音箱了。
Anchor
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Anchor helps you use your phone a little less — on your terms, and without a subscription. Pick the apps that pull at you, choose how firmly to hold them, and Anchor does the rest. It is built entirely on Apple's Screen Time tools and runs completely on your device. Nothing is uploaded, tracked, or shared. THREE WAYS TO BLOCK • Scheduled — put apps to bed during set hours, like 10pm to 8am. • Delayed access — a short, calming pause before an app opens. Friction, not a wall. • Daily budget — a time allowance; once it is spent, the app rests until tomorrow. A LOCK THAT HOLDS YOU TO IT Turn on a commitment lock and you will not be able to weaken or switch a profile off until it expires — you can only make it stronger. It adds a real cooldown before you can change your mind, for the moments willpower alone does not cut it. You always keep full control of your device in Settings. QUIET, ENCOURAGING INSIGHTS See how often you chose to wait, your streak of steady days, and the time you reclaimed — all counted privately on this phone. PAY ONCE. NO SUBSCRIPTION. The free version gives you one full-featured profile, commitment lock included. Unlock unlimited profiles and ready-made templates with a single one-time purchase. No monthly fee, ever. • 100% on-device — no account, no ads, no tracking • Supportive, never shaming • Beautiful in light and dark Anchor is a calm, one-time-purchase tool for anyone who wants a firmer, kinder way to step back from their phone.
Screenshots
Verdict
The clearest difference is in-app purchases: S4_control at none against Anchor's 1. S4_control also leads on iOS requirement (9.0 vs 17.0). Anchor's advantage is update cadence (weekly vs every 9 months). On price, ads and device support 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. Anchor sells 1 one-off in-app purchase. S4_control asks for nothing beyond the download.
S4_control ships an update every 9 months, Anchor weekly. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.
| Parameter | S4_control | Anchor |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 108 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | GUANDDONG TIANPU TECHNOLOGY GROUP CO.,LTD. | Sahil Jain |
In-app purchases
S4_control
No in-app purchases
Anchor
- Anchor Full$4.99









