Comparison

Puff Log vs Katana

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

Head to head
About

Puff Log

This app helps users track their vaping habits, reduce nicotine intake, and work towards quitting. It offers features like puff logging, trend analysis, and customizable quit plans, all designed for iOS users.

Highlights
  • Seamless puff tracking
  • Insightful trend analysis
  • Customizable quit plan
  • Personal vaping journal
  • Timely notifications
  • Data security and privacy
Features
Read full description

Puff Log – Your Ultimate Vaping Tracker & Quit Smoking Tool, Exclusively on iOS Take full control of your vaping habits with Puff Log, the sleek and intuitive vape tool designed exclusively for iOS. Whether you're aiming to reduce your nicotine intake, track your puff count, or simply become more mindful of your habits, Puff Log provides all the tools you need to stay on top of your vaping routine. Whether you're a regular user of vape mods or looking to quit nicotine, this app is your perfect companion. Urgewave – Beat the Scroll Too Cravings don't only come from your vape. Urgewave, now built into Puff Log, pauses the apps you choose – like TikTok, Instagram or YouTube – before they open. Name the urge, rate it, and ride it out for 90 seconds, the same wave technique that gets you through a vape craving. Then let it pass, or open the app for 15 minutes; each time you give in, the next pause gets a little longer. Set strict hours for late nights and early mornings, and see your scroll urges and vape cravings side by side in Progress. Urgewave is free for one app; Premium unlocks unlimited apps, strict hours and the combined timeline. Your urge history stays on your device. Why Choose Puff Log? Seamless Puff Tracking (Subscription Required) – Effortlessly log your puffs and get a clear overview of your vaping consumption. Insightful Trend Analysis (Subscription Required) – Visualize your vaping patterns with beautifully designed graphs and statistics that reveal trends over time. Customizable Quit Plan (Subscription Required) – Set personal goals to quit vaping or gradually reduce nicotine, and track your progress. Journal (Subscription Required) – Keep a personal vaping journal to reflect on your quit smoking tracker journey. Urgewave Scroll Blocker (Free for 1 app) – Pause TikTok, Instagram and other apps you doomscroll, and ride out the urge instead of opening them. Timely Notifications – Get custom reminders to help you stay consistent and motivated in your quit vaping mission. Data Security & Privacy – Your data is securely stored and never shared with third parties. Designed for iOS – Experience a seamless and elegant app crafted specifically for iPhone users. Unlock Full Access with Puff Log Premium Get advanced features like puff tracking, trend analysis, personalized quit plans, and journaling with a Puff Log Premium subscription. Whether you're cutting back on nicotine, using a vape mod, or fully committing to a rauchfrei lifestyle, our premium tools will keep you motivated. Take control of your vaping habits today with Puff Log – Available exclusively on iOS. Download now from the vape store and start your journey to quit smoking and a healthier lifestyle.

About

Katana

Organize your knife collection, record details, and explore the craft behind Japanese and kitchen knives. Discover makers, steels, and regions with research tools. Connect with other enthusiasts and share your passion.

Highlights
  • Organize knife collection
  • Record maker, steel, dimensions
  • Explore Japanese knife research
  • Add knives manually or import
  • Connect with other enthusiasts
  • Optional social sharing
Features
Read full description

Katana helps you organize your knife collection and explore the people, places, and craft behind Japanese and kitchen knives. Built for the knife collector, home cook, and chef, it brings knife collecting, private records, and source-backed Edge Index research together. MAKE YOUR COLLECTION YOUR OWN Record each knife's maker, steel, dimensions, purchase details, and personal notes. Add photographs and adjust their framing while preserving the originals. Organize the knives you own, your archive, and your wishlist. EXPLORE JAPANESE KNIVES WITH EDGE INDEX Discover makers, workshops, steels, knife types, techniques, and regions. Read complete maker profiles and regional articles with their supporting sources. Explore the regional map and save research to your private reading list. Public research stays separate from your personal knife records. Regional articles are included for offline reading and refreshed with app updates. ADD KNIVES YOUR WAY Enter a knife manually, import a supported retailer page, scan a receipt, or bring in a spreadsheet. Review the information before saving. Katana also supports scanning and claiming compatible digital knife passports. KEEP YOUR COLLECTION WITH YOU Sign in to the same Katana account on your devices to synchronize your collection and saved research. Clear status and recovery choices help you manage interrupted connections and changes made on more than one device. MEET OTHER KNIFE ENTHUSIASTS Explore Social by topic, ask a question, or share a collection story. View shared collections, inspect photos, give Kudos, save posts, follow discussions, and contribute field notes. Reporting and member-blocking controls are available. SHARE BY CHOICE Social is optional. Choose a display name and accept the rules to join. Joining never publishes your collection. Review and confirm each post; purchase information and notes are excluded unless you choose to include them. Retailers do not receive automatic access to your collection. Follow retailers independently and choose whether to allow their updates or share contact details and interests. GET STARTED AND STAY IN CONTROL A skippable guide introduces the essentials. Search in-app help or prepare feedback from Account. Export selected knives as CSV, Excel, or a photo PDF. Manage your preferences or permanently delete your account from within the app. Social posts, comments and photos you choose to publish can be read publicly on Katana and Edge Index. Your collection and care journal stay private unless you choose to share their contents. Posts are checked against the community rules before publication. Reporting, blocking and withdrawal controls are available.

Screenshots

Puff Log4 screens
Katana4 screens

Verdict

The call

The clearest difference is review sentiment: Katana at 100% against Puff Log's 43%. Katana also leads on rating (5.0 vs 3.6) and in-app purchases (none vs 5). On price, ratings volume, ads 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. Puff Log sells 5 in-app purchases, starting at $5.99 per 7 days. Katana asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Katana holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 43% of Puff Log's written reviews are positive against 100% of Katana's.

UpkeepUpdate frequency

Puff Log ships an update every 2 weeks, Katana every 2 days. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
Puff Log versus Katana: the parameters behind the verdict, then further details
ParameterPuff LogKatana
PriceFreeFree
Rating3.6 (5 ratings)5.0 (3 ratings) — better
Positive reviews42.9% of reviews100.0% of reviews — better
Number of ratings5 — better3
Update frequencyEvery 2 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size22 MB19 MB
Age rating+174+
DeveloperTech Arm SoftwaresADAM DAVID LOWENSTEIN

Customer experience

Puff Log

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

Katana

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

5 purchases

Puff Log

Subscriptions5
  • Puff Log weekly Save3 Days trial$5.997 Days
  • Puff Log Pro3 Days trial$5.991 Month
  • puff log Pro Quarterly3 Days trial$24.993 Months
Show 2 more
  • Puff Log saver3 Days trial$29.991 Year
  • puff log pro yearly3 Days trial$59.991 Year
None

Katana

No in-app purchases

Questions

Is Puff Log free?
Puff Log is free to download, with in-app purchases available.
Is Katana free?
Katana is free to download, with no in-app purchases.
Which has better reviews, Puff Log or Katana?
Katana is rated higher. Puff Log averages 3.6 out of 5 from 5 ratings, while Katana averages 5.0 from 3 ratings.
Do Puff Log or Katana have ads?
Neither Puff Log nor Katana shows ads.
Which is updated more often, Puff Log or Katana?
Puff Log ships an update every 2 weeks, and Katana every 2 days. Most recently, Puff Log was updated on October 30, 2026 and Katana on November 6, 2026.

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