Comparison

OTG CO Leak Detector vs Leather Project Tracker

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

Head to head
About

OTG CO Leak Detector

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Indoor Air Safety Away from Home Carbon monoxide (CO), known as the Invisible Killer, is a colorless, odorless, tasteless toxic gas. AIR OTG CO Leak Detector app seamlessly pairs with OTG CO Leak Detector Monitor to deliver real-time CO alerts while on the go. โ— In real-time alert notifications of unsafe indoor carbon monoxide conditions. โ— Easily test alarm's functionality โ— International color coded emojis-like caricatures for quick reference. โ— Effortlessly set up alarms by scanning the QR code on the product, connected to your mobile device Bluetooth network. โ— Logs Notifications for user reference

About

Leather Project Tracker

Features
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Every leatherworker has had the same moment: a customer asks to reorder that wallet from six months ago. What leather was it? What weight? Which tannery? What dye? Without a project log, you're guessing. Hide is the build journal built for leatherworkers. Log every detail of every project - leather type and tannery, thread weight and color, hardware specs, technique notes, and hours spent. When the reorder comes in, the answer is three taps away. TRACK YOUR BUILDS Document projects from pattern to finished piece. Record the leather (Wickett and Craig Harness, 4-5oz, English Tan), the thread (Tiger 0.6mm, cream), the hardware (solid brass trigger snaps), and every technique choice that made the difference. Build stages keep you organized from cutting through edge finishing. KNOW YOUR LEATHER INVENTORY Catalog every hide, offcut, and scrap with tannery, type, weight, color, and remaining square footage. Know exactly what you have before you start planning your next project. TRACK YOUR TRUE HOURLY RATE Log hours per build stage and add your materials cost. Hide calculates your actual hourly rate across every project - not what you hoped you were making, but what you're actually making. Essential if you sell at craft fairs or on Etsy. HARDWARE AND TOOLS INVENTORY Stop searching drawers for that one 3/4 inch solid brass D-ring. Catalog your hardware by size, finish, and quantity. Track your tools and when they need sharpening or replacing. AI LEATHER GUIDE (Pro) Get answers about leather properties, technique questions, and finishing methods - specific to the project you're working on. Ask about edge finishing on veg-tan, thread tension for hand-stitching, or conditioner recommendations for shell cordovan. PDF PORTFOLIO EXPORT (Pro) Generate a professional build report for any project. Shareable with customers, useful for insurance documentation, or just satisfying to review your own progress over time. BUILT FOR THE CRAFT - Works offline - your build logs are always available, no internet required - Supports all leather types: veg-tan, bridle, harness, Chromexcel, shell cordovan, latigo, suede, and more - Designed for the material obsession that makes leathercraft what it is FREE TIER INCLUDES - Up to 5 projects - Full project detail logging - Materials and tool inventory HIDE PRO - Unlimited projects and inventory - AI Leather Guide - PDF portfolio export - Cross-project search including leather details - Priority support Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

OTG CO Leak Detector4 screens
Leather Project Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: OTG CO Leak Detector at none against Leather Project Tracker's 3. OTG CO Leak Detector also leads on iOS requirement (15 vs 18). On price, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Leather Project Tracker sells 3 in-app purchases, starting at $4.99 per month. OTG CO Leak Detector asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
OTG CO Leak Detector versus Leather Project Tracker: the parameters behind the verdict, then further details
ParameterOTG CO Leak DetectorLeather Project Tracker
PriceFreeFree
Update frequencyโ€”Every 2 months
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS15 โ€” better18
Further details โ€” not scored
Size13 MB11 MB
Age rating4+4+
DeveloperBaby Alert International IncKarol Jaworski

In-app purchases

None

OTG CO Leak Detector

No in-app purchases

3 purchases

Leather Project Tracker

Subscriptions3
  • Hide Pro$4.991 Month
  • Hide Pro1 Year trial$39.991 Year
  • Hide Pro$39.991 Year

Questions

Is OTG CO Leak Detector free?
OTG CO Leak Detector is free to download, with no in-app purchases.
Is Leather Project Tracker free?
Leather Project Tracker is free to download, with in-app purchases available.
Do OTG CO Leak Detector or Leather Project Tracker have ads?
Neither OTG CO Leak Detector nor Leather Project Tracker shows ads.

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