TubeLog
Tube Rolling & Gear Tracker
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Log your amps, tubes, and rolling sessions. Track usage hours, get replacement reminders, and remember which tube sounded best where. No account, no subscription.
The tube-rolling log built for vacuum tube audio enthusiasts. Track every piece of gear, every tube, and every listening session — in one place.
No more scattered notes about which tube you tried in which amp, or guessing how many hours are on a tube. TubeLog is a purpose-built iOS app for cataloging your gear, your tube collection, and the tube-rolling sessions that connect them.
【What You Can Do】
▷ Gear Catalog
Log every piece of your rig: preamps, integrated amps, power amps, DACs, CD players, turntables, phono stages, speakers, headphone amps, and more. Track brand, model, purchase price, year, a photo, and status (active, stored, or sold off). Free up to 10 pieces.
▷ Tube Catalog
Catalog every tube you own: type (12AX7, 12AU7, 6SN7, EL34, KT88, 300B, or a custom type), brand, country of origin, label/etch code, purchase price, year, condition, and status (active, spare, or retired). Free up to 20 tubes.
▷ Rolling Log
Record which tubes went into which amp — with a slot label per tube (like "V1 Driver" or "Power L/R") — plus the track or source you listened to, your volume setting, a star rating, and a note on how it compared to your last roll.
▷ Session Timer
Start a timer while you listen. Stop it when you're done, and the session duration is filled into your rolling log automatically.
▷ Usage Tracking & Replacement Reminders
Every tube's cumulative usage hours are tracked automatically from your rolling logs. Set a replacement reminder threshold per tube and get a local notification the moment it's crossed — no more guessing when a tube is due for a check.
▷ Smart Suggestions
Brand, country, and condition fields suggest values you've typed before, plus common presets, so you're not retyping "Mullard" or "UK" every time.
▷ Share Cards
Generate three kinds of shareable cards: your current rig, a tube-rolling comparison (pick 2 or more logs; the card shows up to 4), and your best-rated tubes ranked (shown once a gear item has 3 or more rated logs). Perfect for posting to r/audiophile or any forum. Free with a "Logged with TubeLog" watermark — Pro removes it.
▷ Collection Stats
See your collection at a glance: total gear and tubes, total listening hours logged, total money invested, breakdowns by category and status, your most-used tubes, and rolling log activity over the last 6 months.
▷ Backup & Export
Export your entire collection — gear, tubes, rolling logs, and photos — as a ZIP backup (CSV included inside the archive), then import it on a new device to restore. Available on the free plan. If you import more gear or tubes than the free limits allow, extras are skipped until you upgrade to Pro.
【Who It's For】
· Tube rollers who want to remember which tube sounded best in which amp
· Collectors tracking a growing shelf of NOS and vintage tubes
· Anyone who's ever wondered "how many hours are on this tube?"
· Audiophiles who want their rig — and their reasoning — recorded, not just remembered
【Your Data Stays on Your Device】
Everything is stored locally on your iPhone. No account required, no cloud sync, and no internet connection needed for everyday use.
【Pricing】
· Free: up to 10 pieces of gear and 20 tubes. Rolling logs, the session timer, replacement reminders, share cards (with watermark), collection stats, and ZIP backup export/import are always free.
· TubeLog Pro (one-time purchase): unlimited gear and tubes, plus watermark-free share cards. Pay once, yours forever.
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Developer: Kore Apps
Contact: support@kore-apps.com
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Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, kazuki korenori, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- kazuki korenori
- Size
- 43.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- TubeLog Pro $6.99
- Copyright
- © KoreApps