Comparison

Leather Project Tracker vs Union Protocol

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

Head to head
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/

About

Union Protocol

Enhance your relationship with shared routines, tasks, and rewards. This app fosters connection and playfulness through daily check-ins, goal setting, and private notes, creating a more intentional rhythm for couples.

Highlights
  • Create shared routines and assign tasks
  • Track progress and collect points
  • Unlock custom rewards together
  • Daily check-ins and partner updates
  • Private notes and mood tracking
  • Shared goals and reminders
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UNION is a private app for couples who want to bring more structure, connection, and playfulness into their shared everyday life. Create routines, assign tasks, track progress, collect points, and unlock custom rewards together. UNION helps couples stay connected through daily check-ins, shared goals, reminders, and meaningful little rituals that make the relationship feel more present. With features like shared tracking, partner updates, private notes, mood check-ins, rewards, and progress insights, UNION turns ordinary routines into a more engaging couple experience. Designed with privacy and discretion in mind, UNION gives couples a dedicated space for their personal connection. Your moments, messages, and shared progress stay between you and your partner. UNION makes it easy to build habits, celebrate small wins, stay emotionally aligned, and create a more intentional rhythm together. Union can be explored for free, with Tasks, Rituals, and Punishments available without a Premium subscription. Access to additional features requires Union Elite. Elite is available as a weekly, a monthly, or a yearly subscription. The yearly subscription includes a 2-week free trial, allowing users to explore the Premium features before being charged. Subscriptions will automatically renew unless cancelled within 24-hours before the end of the current period. You can cancel anytime with your iTunes account settings. Any unused portion of a free trial will be forfeited if you purchase a subscription. - Terms Of Use (EULA):https://www.union-relationship.app/terms - Privacy Policy: https://www.union-relationship.app/privacy - Support: https://www.union-relationship.app/contact

Screenshots

Leather Project Tracker4 screens
Union Protocol4 screens

Verdict

The call

The clearest difference is in-app purchases: Union Protocol at none against Leather Project Tracker's 3. Union Protocol also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18). On price, update cadence and ads 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. Leather Project Tracker sells 3 in-app purchases, starting at $4.99 per month. Union Protocol asks for nothing beyond the download.

UpkeepUpdate frequency

Leather Project Tracker ships an update every 2 months, Union Protocol every 6 weeks. Both last shipped on October 31, 2026.

Scorecard3 real differences · 6 level
Leather Project Tracker versus Union Protocol: the parameters behind the verdict, then further details
ParameterLeather Project TrackerUnion Protocol
PriceFreeFree
Rating—4.8 (6 ratings) — better
Number of ratings—6 — better
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Freemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS1815.1 — better
Further details — not scored
Size11 MB121 MB
Age rating4+17+
DeveloperKarol JaworskiAccord Studios Ltd.

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
None

Union Protocol

No in-app purchases

Questions

Is Leather Project Tracker free?
Leather Project Tracker is free to download, with in-app purchases available.
Is Union Protocol free?
Union Protocol is free to download, with no in-app purchases.
Do Leather Project Tracker or Union Protocol have ads?
Neither Leather Project Tracker nor Union Protocol shows ads.
Which is updated more often, Leather Project Tracker or Union Protocol?
Leather Project Tracker ships an update every 2 months, and Union Protocol every 6 weeks. Most recently, Leather Project Tracker was updated on October 31, 2026 and Union Protocol on October 31, 2026.

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