RacketLog
iOS App · Tennis

Know your strings.
Play your best.

RacketLog helps you track the life of your tennis strings so you know when it's time to restring. Log your setups, record hitting sessions, and view string wear at a glance.

Download on the App Store See Features
7:48
⚙
RacketLog
Track strings. Better tennis.
+
Head Boom MP
Mains Healthy
Solinco Tour Bite (16.0)
46 lbs
Crosses
Solinco Vanquish (17.0)
48 lbs
50%
Hitting: 4 hours
Time strung: 3 days
String life: 50% remaining
+30m
+60m
+90m
+120m
Head Speed MP
Head Tour (16.0) Replace soon
45 lbs
0% Replace
Hitting: 9.5 hours
Time strung: 9 days
String life: Overdue
+30m
+60m
+90m
+120m
Features

Everything you need to manage your strings

RacketLog focuses on practical tracking, not guesswork. You log what you play, and the app helps you decide when it's time to restring based on actual use.

‹ Head Boom MP
Racket
Head Boom MP Edit
Grip 3
Active string job
Edit Healthy
Mains
Solinco Tour Bite
Poly · 16 · 46 lbs
Crosses
Solinco Vanquish
Multi · 17 · 48 lbs
Strung Feb 16, 2026
50%
Hitting: 4 hours
Time strung: 3 days
String life: 50% remaining
Log time
Replace strings
Racket Management

Track every racket you own

Add each racket you use and keep its details in one place. If you own multiple identical rackets, you can track each one separately with its own string history.

  • ✓ Brand, model and head size
  • ✓ Grip size and string pattern
  • ✓ Purchase date and notes
  • ✓ Optional photo
  • ✓ Separate history per racket
‹ Head Boom MP
Sessions
Feb 20, 2026
Practice · Hard
60 min
Feb 19, 2026
Practice · Hard
60 min
Feb 18, 2026
Practice · Hard
120 min
String jobs
Mains: Solinco Tour Bite Poly (16) 46 lbs
Crosses: Solinco Vanquish Multi (17) 48 lbs
Strung Feb 16, 2026 · 4.0 h · 3 sessions · Rated 3.5/5
String Jobs

Log every restring in full detail

Record every restring with complete setup details. RacketLog keeps a full history of your past string jobs so you can compare setups over time.

  • ✓ Mains and crosses separately
  • ✓ String type, material and gauge
  • ✓ Tension, pattern and color
  • ✓ Cost and notes
  • ✓ End reason: restrung, broke, or cut out
RacketLog
Head Boom MP
Healthy
Solinco Tour Bite (16.0) · 46 lbs
Solinco Vanquish (17.0) · 48 lbs
50%
Hitting: 4 hours · Time strung: 3 days
String life: 50% remaining
+30m
+60m
+90m
+120m
Head Speed MP
Replace soon
+30m
+60m
+90m
+120m
Session Logging

Record hitting sessions to track real usage

Log time on court to track real string usage. Each session updates your string wear automatically based on play time and surface type.

  • ✓ Duration in minutes
  • ✓ Surface: hard, clay, grass, indoor
  • ✓ Session type and notes
  • ✓ Automatic wear calculation per session
RacketLog
Head Boom MP
50%
Hitting: 4 hours
Time strung: 3 days
String life: 50% remaining
Head Speed MP
0% Replace
Hitting: 9.5 hours
Time strung: 9 days
String life: Overdue
Healthy
Heads-up
Replace soon
Overdue
String Life Gauge

See your string wear at a glance

RacketLog calculates string wear using total hitting time, age since restring, and surface-adjusted usage — giving you a simple gauge before you play.

  • ✓ Fresh — strings are performing well
  • ✓ Watch — start monitoring performance
  • ✓ Replace — time to rebook the stringer
  • ✓ Overdue — strings are past their best
‹ Head Boom MP
Player ratings
Durability
1
2
3
4
5
Control
1
2
3
4
5
Power
1
2
3
4
5
Spin
1
2
3
4
5
Comfort
1
2
3
4
5
Feel
1
2
3
4
5
Appearance
1
2
3
4
5
Player Ratings

Rate setups to find what works for your game

Rate each string job based on how it performs. View ratings later to compare setups and find what works best for your game.

  • ✓ Durability, Control and Power
  • ✓ Spin, Comfort and Feel
  • ✓ Appearance rating
  • ✓ Compare across string jobs over time
Everything Included

Built for real players

🎾

Multi-Racket Tracking

Track each racket you own separately with its own complete string history.

🪢

Full String Job Logs

Mains, crosses, tension, gauge, pattern, cost and notes — all in one place.

⏱️

Session Logging

Log hitting time by surface to calculate real-world string wear.

📊

String Life Gauge

A simple visual indicator showing exactly where your strings are in their life cycle.

⭐

Performance Ratings

Rate durability, control, power, spin, comfort, feel and appearance per string job.

📋

Full History

See every past string job with time played, session count, end reason and ratings.

💾

CSV Data Export

Export your rackets, string jobs and session history as a human-readable CSV file.

🌍

Surface-Adjusted Wear

Clay, hard, grass and indoor surfaces are weighted differently in wear calculations.

📱

Native iOS

Built in Swift for iPhone. Fast, native, and designed around real tennis players.

Now Available

Start tracking your strings today

RacketLog is available now on the App Store. Built for players who care about their equipment.

Download on the App Store
Support & Questions

Get in touch about RacketLog

Have a question, found a bug, or want to suggest a feature? We read every message and aim to respond within one business day.