Coday vs OpenCards
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Coday
Track the cost of your belongings over time, including daily expenses, cost per use, consumables, and subscriptions. Get reminders for renewals, expiring warranties, and restocking needs. AI capture helps log items quickly with detailed insights.
- Cost per day tracking
- Cost per use calculation
- Consumable stock management
- Subscription renewal reminders
- AI item capture from screenshots
- Customizable notifications
- Cross-device synchronization
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Coday keeps track of what you own, with four things in one app: cost per day, cost per use, consumables, and subscriptions. See what each thing costs you every day and every use, keep stock of consumables and know when they'll run out, and log every subscription charge with a reminder before it renews. You'll also hear when a warranty or shelf life is about to end, or when something pays off. Every day, every use, accounted for Track one-time purchases, per-use costs, subscriptions, and consumables. See what each item costs per day, per use, or per unit, record how often you use it, and keep track of quantities used. Costs are based on what you actually spent: money from selling an item is deducted, and paused days don't count. A $999 phone used for two years comes to about $1.37 a day. Clothes and shoes work the same way, for cost per wear. Extra costs like accessories, fuel, or vet bills, and recurring costs like car insurance or vaccinations, are spread into the item's average too. Any currency, one total Give each item its own currency. Totals convert to your main currency, with every payment converted at that day's exchange rate. Consumables and stock, before you run out Track stock and what you paid for each restock to get the cost per unit. Coday estimates when you'll run out based on recent use and reminds you to restock. For parts that wear out, like toothbrush heads, filters, or racket strings, it tracks what's left and works out when to replace them, by time or by number of uses. Subscription tracker, no surprise renewals Log each period's price, the billing cycle, and any free trial, and keep tracking when the price changes. Get reminded before a renewal or before a free trial ends, and see what each subscription costs you per day. AI Capture: hand Coday an order screenshot AI reads the name, price, date, and currency, and finds a matching icon, so the item is logged in one go. Sign in for 1 free capture a day, or 20 a day with Premium. 10,000+ beautifully crafted 3D icons From electronics to everyday essentials, find an icon that fits each item, and AI gives every item card a harmonious color. Know when it renews, runs out, or pays off Get notified when an item reaches your target average cost, before a subscription renews, or when it is time to restock everyday essentials. Warranty, shelf life, return windows, and price protection get a heads-up 7 days ahead by default. Regular care like servicing or vaccinations, duration goals like wearing a coat for three years, and custom dates like a contract ending are covered too, and items can retire automatically when they expire or run out. A glance at your Home Screen See each item's daily cost and progress without opening the app, and check your total spending with the stats widget. Premium adds rotating and pinned item widgets. Pick up on any device With Premium, your records stay in sync across your devices. Log it on your phone, pick it up on your tablet. Wishlist and dashboard Put things you want on your wishlist, wait a few days before deciding, and see how much you saved on what you let go. The dashboard on the You tab brings this month's spending, reminders, your wishlist, consumables, and subscriptions together, with a timeline to look back on. Custom fields hold anything else you care about, like the model or where it's kept. Free to use, no account needed Free to download, with unlimited items. Logging, cost per use, reminders, and icons are all free, and you can use Coday without signing in: your data stays on your device by default. Premium adds sync across devices, rotating and pinned widgets, 20 AI Captures a day, no ads, and more views and colors. Everything you own deserves the rest of its story. [Terms of Use] https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
OpenCards
Transform your Markdown notes into interactive knowledge cards. Organize, review, and access your information seamlessly across devices. Supports rich formatting, including math equations and code.
- Markdown cards with math and code highlighting
- Organize cards into sections
- Tags and likes with filtering
- Full-screen swipe navigation
- Global search
- iCloud sync
- GitHub Markdown import
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OpenCards — Organize Your Knowledge Turn your Markdown notes into beautiful, browsable knowledge cards. OpenCards helps you organize, review, and carry your knowledge everywhere. Organize Your Way Create sections to group your cards by topic — class notes, research papers, vocabulary, or anything you need. Browse cards in a smooth horizontal carousel or search across your entire collection instantly. Rich Markdown Rendering OpenCards renders full Markdown with support for math equations (KaTeX), syntax-highlighted code blocks, tables, and more. Your content looks great in both light and dark mode. Tag, Like & Filter Mark your favorite cards with a like. Add tags to categorize and find cards quickly. Filter any section by likes or tags to focus on what matters. Full-Screen Reading Tap any card to enter an immersive full-screen view. Swipe through cards one by one — perfect for studying and review. iCloud Sync Your cards sync automatically across all your devices via iCloud. Start on your iPhone, continue on your iPad. Import from GitHub Paste a GitHub folder URL to bulk-import Markdown files directly into any section. Great for pulling in shared notes, study materials, or documentation. Key Features - Markdown cards with math (KaTeX) and code highlighting - Organize cards into sections - Tags and likes with per-section filtering - Full-screen card feed with swipe navigation - Global search across all cards - iCloud sync across devices - GitHub Markdown import Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: Coday at 15.0 against OpenCards's 18.6. On price, rating, ratings volume and update cadence 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
Both are free to download. Coday sells 3 in-app purchases, starting at $2.99 per month and OpenCards sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Coday against 5.0 for OpenCards. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Coday ships an update weekly, OpenCards fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Coday | OpenCards |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 92.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 65 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 晓明 陈 | 礼 付 |
Customer experience
Coday
OpenCards
In-app purchases
Coday
- Monthly sub$2.991 Month
- Annual sub$12.991 Year
- Lifetime$29.99
OpenCards
- OpenCards Pro$0.991 Month









