StringSense vs TennisGear

Dead strings cost you power, spin, and control — but most players have no idea when it's time to restring. StringSense tells you exactly when your strings are due, so you always play with confidence. What Makes StringSense Different Unlike simple timers or tone-based tools, StringSense uses a science-informed string health model. It factors in your string type, playing time, court surface, temperature, intensity, player level, and your racquet's specs to calculate a real-time health score for every racquet you own. True Hybrid Support Play with a hybrid setup? StringSense tracks your mains and crosses string types separately. The algorithm calculates wear based on the actual materials — so a poly/gut hybrid gets a different health score than a poly/multi hybrid. No more averaged guesswork. Your Racquet Counts String pattern and head size change how fast your strings wear. A dense 18×20 on a small head spares them (up to 15% more string life); an open 16×19 on a big head punishes them (up to 13% less). Log string pattern, head size, and weight per racquet, all optional — or pick your model from the built-in catalog (Babolat, Wilson, Head, Yonex, and more) and the specs fill in automatically. How It Works 1. Add your racquet and log your string job with string type and tension. 2. Record your play sessions — duration, surface, intensity, and conditions. 3. Watch your string health score update automatically after every session. 4. Get a clear signal when it's time for fresh strings. Smart Check After each session, StringSense asks how your strings felt: crisp, normal, or mushy. Over time it learns the health level at which your strings feel dead to YOU and tunes your restring recommendation to match — the more you check in, the sharper it gets. Reminders You don't have to keep checking. StringSense tells you when your strings reach your personal restring threshold — the one it learned from your Smart Checks. One wear reminder per stringing, scheduled for the morning and never at night — your device decides the exact moment. Free, switched on once after your first string job, and off again in the Workshop whenever you like. Until you've logged sessions it stays quiet — with no play time there is nothing to estimate. Rating & favorites How did the last stringing play? StringSense asks once when it comes off the racquet: stars, five traits, a private note. Setups you want again become favorites — on your next string job, strings, types, gauges and tensions are pre-filled. Knowledge Base & Glossary Five string type guides explain character and warning signs. Plus a glossary from string pattern to settling — free, right in the Workshop. Your Dashboard at a Glance See all your racquets in one place with live health indicators. Track your total play hours, average string health, and tension history with detailed graphs. Swipe through your racquets, tap for details, and stay on top of your equipment. Works Offline No Wi-Fi at the club? No problem. StringSense stores everything locally and syncs automatically when you're back online. Your data is always available, on or off the court. StringSense Pro The free version gives you core string tracking for one racquet — no time limit. When you're ready for more: • Unlimited racquets • Detailed tension graphs • Data export (CSV & JSON) • Time reminder after 3, 6, 9 or 12 months, with a head start • Per-racquet reminder control • Support ongoing development Privacy First Your data belongs to you. StringSense shows no ads and never sells your data — your racquet and session data is stored securely in your personal account and never shared. Whether you're a club player who strings every few months, a tournament competitor who restrings weekly, or a weekend warrior who just wants to know when it's time — StringSense keeps your equipment in peak condition. Download StringSense and never play on dead strings again.

■ Smarter management for your tennis gear. TennisGear is a dedicated tool for tennis players to manage the lifecycle of all your equipment — rackets, strings, grips, shoes, balls, and more — in a single app. Get data-driven answers to questions like "Is it time to restring?" or "How many hours have I put on these shoes?" ■ Who is it for? ・Players who want to base restringing decisions on data, not just feel ・Players who rotate between multiple rackets ・Players using string reels who want to track remaining capacity ・Players who string hybrid setups (different mains and crosses) ・Players who want to monitor shoe and insole lifespan ・Anyone who wants to keep a personal log of practices and matches ・Players who want to organize their own tips and opponent notes ■ Key Features 【Tennis Notes】 ・A knowledge-first note system, free from chronological order ・Organize with categories (Serve, Strokes, Tactics, Opponents, and more) and tags ・Full-text search across titles, body text, tags, and categories ・Link notes to rackets and play logs to connect knowledge with gear and matches ・Attach up to 5 photos per note, and pin your favorites to the top 【Racket Management】 ・Register multiple rackets and track strings/grips individually ・Visualize restringing history with tension trend charts ・Hybrid stringing support (different mains and crosses) ・Record string feel notes and gauge information 【Automatic String Wear Tracking】 ・Wear is calculated from play time and days since stringing ・Color-coded indicators show when it's time for a fresh restring ・Automatic deduction from string reel inventory (0.5 per reel for hybrid setups) 【Grip, Shoe & Ball Management】 ・Track grip stock and shoe usage hours automatically ・Manage insole replacement history per shoe ・Record ball set usage count and condition 【Play Logs】 ・Log activities by type: Tennis, Training, Running, Gym, and more ・Record tournament name, opponents, and scores (multiple matches per log) ・Attach up to 5 photos per log to capture match scenes or gear conditions ・Filter by "Matches Only" or "With Memo" for easy review ・Memo field expands as you write 【Calendar & Events】 ・Schedule practices, tournaments, and lessons ・Events are color-coded by type for at-a-glance identification ・Selected day is clearly highlighted ・Create a play log from any event with one tap 【Stats & Analytics】 ・Monthly activity displayed in bar charts ・At-a-glance totals: play time, restrings, estimated string cost, match count ・Activity breakdown by type 【Other】 ・Japanese and English language support ・Customizable currency symbol and default lifespan values ・All data stored locally on device — no account required, no ads ・JSON export supported ■ Our Promise TennisGear is built and maintained by a solo developer. There are no ads and no subscriptions. It exists for one reason: to make a useful tool for people who love tennis. If you have feedback or feature requests, please share them through an App Store review. If you enjoy the app, sharing it with your tennis friends would mean a lot. Happy playing!