# Stringbed: String Tension — Tennis string & racket guide > Tennis string & racket guide (iPhone/iPad app by Laure Shin.) - Source: https://appshunter.io/ios/app/stringbed-string-tension/id6812965445 (this page in markdown: same URL + `.md`) - Developer: [Laure Shin](https://appshunter.io/developer/6785226025) - Category: Sports, Utilities - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 17.0 · 7 MB - Languages: American English, French (France), Korean - Released: 2026-10-02 - Data updated: 2026-10-24 ## What is Stringbed? Tennis Stringbed does one thing: it tells you which string to ask for and how many pounds to have it pulled at — for your racket, and for the way you actually play. No account. No subscription. Nothing collected by us. HOW IT GOES You answer a few plain questions: how you hit, how often you play, what is in the racket now, whether your arm bothers you afterwards. A band on a fixed 40–62 pound scale narrows while you answer, so you can watch the answer being found. “I don’t know” is a real answer at every step — the app keeps it as unknown and widens the band instead of guessing quietly. When there is enough to settle, the band lands on a number and you get: • the exact pounds for the up-and-down strings and for the side-to-side strings • one string to use, named with its thickness and the reason, plus two alternatives • one sentence to say at the counter • “Why these numbers” — which of your answers moved the number, and by how much • what the app still does not know, and how far that moves the middle TELL IT HOW IT PLAYED, AND THE NEXT NUMBER LISTENS After you play the bed, say how it felt — too harsh, too soft, or just right — and whether the strings broke fast. Your next answer for that racket moves by a small, bounded step and says why in one line. Strings that keep breaking point you to a thicker gauge. When a restring is due, the Rackets screen says so (no notifications). THE SAME ANSWERS ALWAYS GIVE THE SAME NUMBER The number comes from a built-in model of how a string bed behaves: head size, string pattern, frame stiffness, string material and thickness. It does not drift with how you phrase things and it does not change its mind overnight. That is the point — it gives you one steady starting point, and from there you can go a pound up or a pound down and find what you like. TYPE IT AND THE RACKET DRAWS ITSELF Type what is printed on your frame. There is no long list to scroll: as the letters agree, the racket narrows down to itself, and what the app knows about it — head size, string pattern, the range printed on the frame — appears with the page it was read from. If it cannot find your racket, it says so plainly and asks how the racket feels to hit instead. EVERYTHING IS ALREADY INSIDE 165 racket models and 195 strings ship inside the app, every row carrying the published page it came from (Settings → Sources). Every answer is worked out on your iPhone from data built into the app. The only thing that needs the internet is an optional web search for the string you were given, and you decide whether to tap it. WHAT IT COSTS Free to download. Your first settled answer is free. After that, one payment opens unlimited answers forever — not a subscription, no credits, nothing metered, nothing to renew. Restore Purchases sits in Settings. Recording what you actually had strung, and how it played, is free before and after any purchase. WHAT IT KEEPS Nothing reaches us. There is no account, no sign-in, no analytics, no advertising and no server of ours anywhere. What you enter stays on your devices. If iCloud is on, it syncs through your own private iCloud account — we could not read it if we tried. The only thing the app opens outward is a web search for the string, in Safari, with no tracking added and no affiliate link; we earn nothing from it and get nothing back. FOR THE PLAYER, NOT FOR THE SHOP Tension, thickness and string type are explained in ordinary words before they are ever named. If you have never chosen a string in your life, you can still answer every question honestly — including “I don’t know”. This is about your strings, not about your health. If pain keeps up after a softer setup, see a doctor. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Unlimited answers | $14.99 | one-time | ## Is Stringbed safe? Not enough ratings yet to assess Stringbed. ## Is Stringbed legit? Stringbed: String Tension appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Stringbed is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 4 releases) ### 1.2 — 2026-10-09 • One string to use, with the reason and two alternatives — chosen from makers' descriptions and published research. • Faster, steadier consult screens. ### 1.1.1 — 2026-10-08 Clearer name and description in the App Store. The app itself is unchanged. ### 1.1 — 2026-10-07 • Tell it how the strings played: your next answer moves a little and says why. • Strings that break fast now point you to a thicker gauge. • A quiet restring reminder on the Rackets screen. • Your rackets and records sync through your own iCloud. • Each racket and string spec now shows the page it was read from; anything without a source says "unknown". • Cleaner screens: a bigger number, calmer rows, shorter settings. ### 1.0 — 2026-10-03 No release notes. ## More apps by Laure Shin - [Slab: Concrete Calculator](https://appshunter.io/ios/app/slab-concrete-calculator/id6785225633) - [MiteWindow — Varroa Planner](https://appshunter.io/ios/app/mitewindow-varroa-planner/id6787297534) - [PoolDose: Pool & Hot Tub Calc](https://appshunter.io/ios/app/pooldose-pool-and-hot-tub-calc/id6790205421) - [Pipe Offset](https://appshunter.io/ios/app/pipe-offset/id6792919515) - [Wine List Scanner: Sommelier](https://appshunter.io/ios/app/wine-list-scanner-sommelier/id6797155529) All apps by Laure Shin: https://appshunter.io/developer/6785226025 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*