RacquetTune vs StringPing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RacquetTune
This app uses sound to accurately measure racquet string tension and analyze racquet performance. It offers tools to customize racquets, simulate different configurations, and track stringing consistency for various racket sports.
- String tension measurement
- Swingweight calculator
- Stiffness calculator
- Racquet configuration simulation
- Tension history tracking
- Export test data
Read full descriptionHide full description
Listen to your racquet and perfect your game! RacquetTune ensures that your racquet is ideally suited to your style of play. Simple and straightforward to use, the app uses the sound generated by tapping the strings to calculate the tension with high accuracy. In addition, the interactive swingweight calculator aids in customizing your racquet to fit your own stroke pattern, while the stiffness calculator allows you to simulate different racquet configurations. RacquetTune not only makes it easier to decide when it is time to restring, it is also an invaluable tool when testing different racquets and strings and in identifying which of your racquets is best suited for different types of games. RacquetTune also allows you to check whether your stringer is consistent in his work. RacquetTune includes the following user-friendly tools: Tension measurement - Quickly determines the tension and stringbed stiffness. - Able to detect changes in tension as small as 0.1 kg/0.2 lb. - An accuracy indicator ensures results are consistent. - Graphical presentation of sound waves helps you find the ideal way of tapping the strings. - Settings can be customized to serve tennis, squash, racquetball and badminton racquets, respectively. - View the tension history for each racquet as a list or a graph. - Email a spreadsheet with test data. Swingweight calculator - Add as many weights as you wish to the frame. - Move and change weights to visualize how swingweight, balance and sweet spot location are affected. - Enter target values for the racquet and let RacquetTune distribute the weights automatically. Stiffness calculator - Simulate various racquet and string configurations - Vary tension, string type and racquet head size. - Shows load-displacement curves, stiffness and elastic energies - Handles the large deformations encountered in actual play View a demo video at racquettune.com RacquetTune has been featured in tennis magazines in USA, Italy, France, Germany, Sweden and Norway. "The app is very, very impressive. I get more tension diagnostic questions than just about anybody in the universe, so this is a very good thing to be able to recommend." Jonathan Wolfe US Racquet Stringers Association Note, that the actual string tension in the racquet and the setting seen on a stringing machine are two different things and therefore incomparable - more information can be found at racquettune.com.
StringPing
Read full descriptionHide full description
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.
Screenshots
Verdict
The clearest difference is price: StringPing at Free against RacquetTune's $2.99. StringPing also leads on update cadence (daily vs every 3 months). RacquetTune's advantage is in-app purchases (none vs 4) and chart position (#18 vs unranked). On ads 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
StringPing is free to download; RacquetTune costs $2.99 up front. StringPing sells 4 one-off in-app purchases. RacquetTune asks for nothing beyond the download.
RacquetTune ships an update every 3 months, StringPing daily. Both last shipped on November 6, 2026.
| Parameter | RacquetTune | StringPing |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.6 (482 ratings) — better | — |
| Positive reviews | 72.7% of reviews | — |
| Number of ratings | 482 — better | — |
| Update frequency | Every 3 months | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Best chart rank | #18 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 11 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Sten Kaiser | Korhan Pekun |
Bugs and requests
RacquetTune
Reported bugs
4 issues- App crashes when trying to delete rackets
- String factor database not working properly
- Inconsistent readings on the same racket
- Struggles with rackets with built-in dampers
Requested features
5 requests- Add more strings to the database
- Allow logging of playing hours
- Improve history/graphing features
- Support for hybrid string setups
- Add racket database for easier setup
StringPing
Not enough reviews yet to summarise bugs or requests.
In-app purchases
RacquetTune
No in-app purchases
StringPing
- Overgrip$1.99
- Can of Tennis Balls$4.99
- Set of Strings$9.99
Show 1 moreShow fewer
- Reel of String$19.99









