Comparison

String Tension Meter vs Tennistory

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

String Tension Meter

Features
Read full description

String Tension Meter helps tennis and badminton players measure racquet string tension quickly and accurately using only an iPhone. By analyzing string vibration through your device's microphone, the app provides instant tension readings in both lbs and kg without requiring any external hardware. It also includes advanced racquet management tools. Whether you're a competitive player, coach, stringer, or recreational athlete, String Tension Meter makes it easy to track racquet performance and know when it's time to restring. FEATURES • Measure string tension in seconds using your iPhone microphone • Instant racquet tension readings in lbs and kg • Supports both tennis and badminton racquets • Works with all common string materials and gauges • No external string meter or hardware required • Save and organize measurements by racquet profile • Track tension changes over time with measurement history • Store and manage multiple racquets and string setups • Archive previous string jobs and restore them anytime • Share tension measurement results with others HOW IT WORKS Select your sport and string information Hold the racquet near your iPhone Tap the string bed a few times The app analyzes vibration frequency Receive an instant string tension measurement RACQUET MANAGEMENT Keep detailed records of every racquet and string setup. Save reference tensions, monitor tension loss, review historical measurements, and compare performance across different string jobs. Everything stays organized in one place so you can make informed restringing decisions. PERFECT FOR • Tennis players • Badminton players • Racquet technicians and stringers • Coaches and academies • Competitive athletes tracking equipment performance String Tension Meter combines acoustic analysis, racquet management, and tension tracking in one easy-to-use app. Download today and take control of your string tension with a smarter way to measure and monitor racquet performance. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Tennistory

Track your tennis rackets, string setups, and court time. Features a comprehensive racket library, string-life tracking, and match scoring. Offers a free version with core features and a Pro subscription for advanced tools.

Highlights
  • Extensive racket library
  • String setup and care tracking
  • Court time and match logging
  • Restring reminders
  • Racket finder quiz
  • Sound-based tension analysis (Pro)
Features
Read full description

Every racket has a story. Tennistory brings your rackets, string setups and time on court together, with a 166-racket library and a clear sense of when to restring. RACKET LIBRARY • 166 rackets from Wilson, Head, Babolat, Yonex, Tecnifibre, Prince and more, from current models to classics • Unstrung specs, string patterns, and power, control, spin, sweet spot and comfort ratings • Search, compare, and a racket finder quiz • Missing a racket, or a spec or picture looks wrong? Submit it. Accepted contributions earn points you can redeem for PRO STRINGS AND CARE • Save the string, tension and setup for every racket • Log court time, restrings and grip changes • String-life gauge and restring reminders • Hear the tension: tap the string bed and Tennistory estimates the tension from the sound, analysed on your device (Pro) ON COURT • Keep score and save your matches • Check the weather and a play score before you head out • Court themes, and a personality for every racket • A racket log card to save or share • Back up everything to iCloud Drive or Files FREE AND PRO Free: the full racket library, one racket in your collection, 30 days of history and fixed-interval reminders. Tennistory Pro (monthly or yearly): unlimited rackets, full history, tension curve, hear the tension, the 15-question racket finder, all five court themes, every string-life display, unlimited racket photos, reminders predicted from your pace, and the full racket dialogue. Care percentages and tension readings are estimates, not stringing-machine measurements. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel in your Apple Account settings. Support: tennistory.story@gmail.com Privacy: https://tennistoryapp.pages.dev/privacy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

String Tension Meter1 screens
Tennistory4 screens

Verdict

The call

The clearest difference is in-app purchases: Tennistory at none against String Tension Meter's 2. Tennistory also leads on ads (none vs shown). String Tension Meter's advantage is iOS requirement (13.0 vs 15.0). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. String Tension Meter sells 2 in-app purchases, starting at $0.99 per month. Tennistory asks for nothing beyond the download.

Scorecard3 real differences · 5 level
String Tension Meter versus Tennistory: the parameters behind the verdict, then further details
ParameterString Tension MeterTennistory
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequency—Every 2 days
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size32 MB38 MB
Age rating4+4+
DeveloperTzu Yu Chouyiliyasi tusongjiang

In-app purchases

2 purchases

String Tension Meter

Subscriptions2
  • Premium Monthly$0.991 Month
  • Premium Yearly$5.991 Year
None

Tennistory

No in-app purchases

Questions

Is String Tension Meter free?
String Tension Meter is free to download, with in-app purchases available.
Is Tennistory free?
Tennistory is free to download, with no in-app purchases.
Do String Tension Meter or Tennistory have ads?
String Tension Meter shows ads; Tennistory does not.

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