StringPing vs Stringbed
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StringPing
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StringPing turns the sound of your strings into a tension reading. Tap the center of your string bed with the heel of your palm and StringPing listens to the "ping," measures its pitch, and estimates your string tension in seconds — no gauge, no trip to the stringer. Strings lose tension the moment they're installed and keep dropping with every hit. StringPing helps you feel it before your game tells you: track each racquet over time and watch the tension-loss curve so you know exactly when it's time to restring. HOW IT WORKS • Pick your racquet, string, and pattern (or scan with sensible defaults) • Tap the string bed a few times • StringPing captures each tap, filters out noise and outliers, and averages the readings for a confident result • Save it to build a history for that racquet TRACK EVERY RACQUET Keep a library of your frames with their string setup and last-measured date • See a tension-over-time chart for each racquet • Review a full scan log with the drop between each reading • Know how many weeks a string bed has been in play BUILT FOR THE COURT Fast, on-device analysis — your audio never leaves your phone • Works across common racquet head sizes and string patterns • Clear confidence indicator so you know when a reading is solid • Pounds or kilograms A NOTE ON ACCURACY StringPing is an acoustic estimate, not a stringing machine. It shines at tracking relative change over time on the same racquet and string — the best way to catch a string bed going dead.
Stringbed
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Which string to ask for, and how many pounds — for your racket and the way you play. Answer a few plain questions; “I don’t know” always counts. Your first number is free; the string to ask for and unlimited answers come with one payment. No subscription. No account. 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 • with Unlimited answers: one string to use, named with its thickness and the reason, plus up to 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 — the pounds and why — is free. The string to ask for, and every answer after that, open with one payment, 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.
Screenshots
Verdict
The clearest difference is update cadence: StringPing at daily against Stringbed's every 5 days. Stringbed's advantage is iOS requirement (17.0 vs 26.5). On price, ads, in-app purchases 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. StringPing sells 4 one-off in-app purchases and Stringbed sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
StringPing ships an update daily, Stringbed every 5 days. Both last shipped on November 6, 2026.
| Parameter | StringPing | Stringbed |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 26.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Korhan Pekun | Laure Shin |
In-app purchases
StringPing
- Overgrip$1.99
- Can of Tennis Balls$4.99
- Set of Strings$9.99
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- Reel of String$19.99
Stringbed
- Unlimited answers$14.99
Questions
Is StringPing free?
Is Stringbed free?
Do StringPing or Stringbed have ads?
Which is updated more often, StringPing or Stringbed?
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