Comparison

KETOSCAN vs Grinds

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

Head to head
About

KETOSCAN

This device measures ketone levels through breath analysis, indicating body fat decomposition. It's ideal for those on ketogenic diets or seeking to monitor fat loss scientifically. Data can be integrated with the Health app for comprehensive tracking.

Highlights
  • Breath ketone measurement
  • Body fat decomposition rate
  • Ketogenic diet support
  • Health app integration
  • Scientific diet tracking
Features
Read full description

Equipped with a high-precision sensor, it measures the state of the ketone by simple breathing The ketone meter. 1. What is KETOSCAN? KETOSCAN is the first portable acetone gas analyzer in Korea, Acetone, which is one of the ketone bodies produced when decomposing body fat, flows through the blood vessels and is discharged through the lungs through the respiration. It is a product that can measure the blood ketone concentration and the body fat decomposition rate by measuring the concentration of the breathing acetone gas. 2. Who needs a KETOSCAN? - Low Carb High Fat Diet (LCHF / Ketogenic Diet) When you need to measure your ketone production! - When you lose body fat through low-calorie diet, check for the scientific diet check that only the body fat is decomposed not the muscle! - For the purpose of ketosis check! 3. Integration with the Health app - KETOSCAN read data from health app such as 'Active Energy', 'Dietary Energy', 'Weight' - It is used for your records. - You can allow to read at Settings -> Privacy -> Health -> KETOSCAN

About

Grinds

Features
Read full description

Grinds: Smart Running Record Manager Stop typing, start running! Grinds is the ultimate smart record management app for runners. Just snap a photo of your race certificate, and let our AI handle the rest. No more tedious manual data entry—just focus on your growth. ▸ AI-Powered Record Extraction - Instant Upload: Simply upload a photo of your race certificate or finisher card. - Smart Recognition: Our AI automatically detects the race name, date, distance, and finish time. - Fast & Accurate: Get precise data extraction in seconds without lifting a finger. ▸ Comprehensive Record Management - Smart Filtering: Organize your achievements by category—Full Marathon, Half, 10K, or 5K. - Visual Progress: Track your growth at a glance with intuitive performance charts. - Edit & Refine: Easily view, manage, and edit your record details anytime. ▸ Built for the Community - You Decide the Future: Suggest new features and vote on upcoming updates. - User-Driven Growth: We evolve by listening to your feedback and the running community’s needs. Manage your running journey smarter with Grinds! Love the grind! Terms of Use & Privacy Policy - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://www.notion.so/Privacy-Policy-2bca725e0144808a85f4cae7b3565c61?source=copy_link

Screenshots

KETOSCAN4 screens
Grinds3 screens

Verdict

The call

The clearest difference is in-app purchases: KETOSCAN at none against Grinds's 2. KETOSCAN also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, 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. Grinds sells 2 in-app purchases, starting at $0.99 per month. KETOSCAN asks for nothing beyond the download.

UpkeepUpdate frequency

KETOSCAN ships an update every 4 weeks, Grinds fortnightly. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
KETOSCAN versus Grinds: the parameters behind the verdict, then further details
ParameterKETOSCANGrinds
PriceFreeFree
Rating2.7 (15 ratings) — better—
Positive reviews31.6% of reviews—
Number of ratings15 — better—
Update frequencyEvery 4 weeksFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.1
Further details — not scored
Size53 MB51 MB
Age rating12+4+
DeveloperSENTECH KOREA CORPKyeongRyeol Kim

In-app purchases

None

KETOSCAN

No in-app purchases

2 purchases

Grinds

Subscriptions2
  • Course Premium Monthly$0.991 Month
  • Yearly Premium$4.991 Year

Questions

Is KETOSCAN free?
KETOSCAN is free to download, with no in-app purchases.
Is Grinds free?
Grinds is free to download, with in-app purchases available.
Do KETOSCAN or Grinds have ads?
Neither KETOSCAN nor Grinds shows ads.
Which is updated more often, KETOSCAN or Grinds?
KETOSCAN ships an update every 4 weeks, and Grinds fortnightly. Most recently, KETOSCAN was updated on October 10, 2026 and Grinds on October 6, 2026.

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