Comparison

Knife Sharpening Log & Timer vs KnifeKeep

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

Head to head
About

Knife Sharpening Log & Timer

Features
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A sharpening session is only repeatable if you wrote it down. This app records the stones you pulled, the angle you held, the minutes you spent on each grit, and how the finished edge actually cut β€” so the next time that same blade comes off the board, you already know the sequence that worked. BUILD YOUR BLADE LIBRARY Add every blade you maintain: chef's knife, paring, boning, pocket folder, chisel, plane iron. Each one stores its steel type, its bevel angle in degrees, your own working notes, and a color tag so you can spot it at a glance in the list. Sort or search the library, and see at a glance which blades were done recently and which have gone untouched. RUN A TIMED SESSION Pick a blade, hit start, and a running timer takes over. As you move up through the progression, add a grit phase for each stone you use and the minutes you spent on it. The session builds itself into an ordered record of the progression rather than something you try to remember afterward. RATE THE EDGE YOU GOT Finish a session with a one-to-five rating and a note on how it went β€” burr came up fast, needed longer on the 1000, the 12000 was overkill. Those ratings are what turn a pile of sessions into a usable pattern. STONE INVENTORY Keep a record of the stones on your bench: grit number, family (Japanese water, diamond, oil, ceramic), and soak time for the ones that need it. A grit-progression strip lays your inventory out coarse to fine so gaps in the jump are obvious. A starter set of common grits is already loaded; add, edit, or remove to match the stones you actually own. PER-BLADE NUMBERS Open any blade to see how many sessions it has had, its average edge rating, total bench minutes, and the average number of days between sharpenings. Library-wide totals and a session streak live in the history tab. MAINTENANCE REMINDERS Set a cadence per blade β€” 14 days for the workhorse, 90 for the one that rarely comes out. A local notification nudges you before the edge wanders, and it reschedules itself from your most recent session. EVERYTHING STAYS ON THE DEVICE No account to create, no sign-in, no sync. Your blades, stones, and session history are stored locally on your iPhone. Built for kitchen cooks, hunters, woodworkers, and anyone who would rather keep a real maintenance record than guess. Knife Sharpening Log & Timer requires a Pro unlock to log a sharpening. Pro opens the whole bench record: an unlimited blade library with steel type, bevel angle, notes and color tags, timed sessions with a grit phase for every stone you pull, edge ratings and session notes, the stone inventory with its grit-progression strip, per-blade numbers for sessions, average edge rating, bench minutes and days between sharpenings, the full session history and streak, and per-blade maintenance reminders. Plans: a weekly subscription, a yearly subscription, or a one-time lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours prior to the end of the current period. You can manage your subscription and turn off auto-renewal in your Account Settings after purchase. Privacy policy: https://pnkl26.web.app/privacy-policy Terms of use: https://pnkl26.web.app/terms-of-service

About

KnifeKeep

Features
Read full description

Keep your knives at their sharpest. "When did I last sharpen this?" "I pulled it out and it had rusted." Your knives deserve better β€” let KnifeKeep look after their sharpening and rust care. β–  Sharpening timing by steel Stainless, carbon steel, Damascus, ceramic β€” each holds an edge differently. KnifeKeep estimates the sharpening timing and gently reminds you as it approaches. β–  Spot the ones about to rust Carbon steel and Damascus rust when left unused or wet. From the last day used, see "Cared for" or "May rust" β€” a nudge to wipe it or add oil. β–  Your collection, in photos Photograph each knife and the subject is cut out automatically. Your personal collection lined up beautifully. β–  Three-stage sharpening reminders Ahead of time (2 weeks, a few days) β†’ on the day β†’ and gently every day after until it's done. A dull edge is unsafe β€” never miss it. β–  Tips for cooks From sharpening angle and whetstone grit to no-dishwasher and choosing a cutting board β€” 24 tips and a mascot make care more fun. β–  Widget support See knives due for sharpening and their status at a glance on your Home Screen. [Free] β€’ Register up to 3 knives β€’ Sharpening reminders [Premium] β€’ Unlimited knives β€’ Group by storage β€’ Care log (type, whetstone, notes) β€’ No ads One-time $20 or $1.49/week (no free trial). Subscriptions auto-renew and are billed to your Apple ID unless canceled at least 24 hours before the period ends. Cancel anytime in Settings. Sharpening cycles are general guides based on the steel. Adjust to how often you use it and your preference. β–  LINKS β€’ Support: https://tsuzukit.com/contact/ β€’ Terms of Service: https://tsuzukit.com/legal/terms-of-service.html β€’ Privacy Policy: https://tsuzukit.com/legal/privacy-policy.html

Screenshots

Knife Sharpening Log & Timer4 screens
KnifeKeep3 screens

Verdict

The call

The clearest difference is ads: Knife Sharpening Log & Timer at none against KnifeKeep's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Knife Sharpening Log & Timer sells 3 in-app purchases, starting at $2.99 per 7 days and KnifeKeep sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Knife Sharpening Log & Timer ships an update every 5 months, KnifeKeep every 3 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard1 real difference Β· 5 level
Knife Sharpening Log & Timer versus KnifeKeep: the parameters behind the verdict, then further details
ParameterKnife Sharpening Log & TimerKnifeKeep
PriceFreeFree
Update frequencyEvery 5 monthsEvery 3 months β€” better
AdsNo β€” betterYes
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details β€” not scored
Size4 MB7 MB
Age rating4+17+
DeveloperLinh Phan Nhat KhanhRyo Tsudukihashi

In-app purchases

3 purchases

Knife Sharpening Log & Timer

Subscriptions2
  • Grit Progression Planner$2.997 Days
  • Bevel Angle Tracker$14.991 Year
One-time1
  • Blade Maintenance Reminders$29.99
2 purchases

KnifeKeep

Subscriptions1
  • Premium (Weekly)$0.997 Days
One-time1
  • Premium (Lifetime)$19.99

Questions

Is Knife Sharpening Log & Timer free?
Knife Sharpening Log & Timer is free to download, with in-app purchases available.
Is KnifeKeep free?
KnifeKeep is free to download, with in-app purchases available.
Do Knife Sharpening Log & Timer or KnifeKeep have ads?
KnifeKeep shows ads; Knife Sharpening Log & Timer does not.
Which is updated more often, Knife Sharpening Log & Timer or KnifeKeep?
Knife Sharpening Log & Timer ships an update every 5 months, and KnifeKeep every 3 months. Most recently, Knife Sharpening Log & Timer was updated on November 5, 2026 and KnifeKeep on October 31, 2026.

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