Expiry Journal vs GRNTRX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Expiry Journal
Manage and track expiry dates for various items like food, drinks, and coupons. Set up multiple alerts to prevent wastage and share lists with friends and family for collaborative management.
- Local database for item tracking
- Customizable expiry alerts
- Shareable lists for collaboration
- Categorization of items
- Reduce item wastage
Read full descriptionHide full description
2 Databases serve different functions: Local Database - Keep track of your items' (e.g. food, drink, coupon) expiry date by categories. Setup 3 alert at designated time before the item expires. Get rid of wastage due to unaware expired items. Share Database - Share list of items, sync expiry information and co-manage the items with friends and families.
GRNTRX
Read full descriptionHide full description
“GRNTRX” is a carbon credit management platform that integrates IoT devices, cycling data, and carbon tracking technology. After logging in and binding a bicycle or e-bike device, users can start earning verifiable carbon credits simply by riding. The app supports multiple riding modes such as commuting, daily use, exercise, and official duties—turning every ride into meaningful, measurable climate action. Key Features Supports bicycles and e-bikes Bind your device and start tracking instantly. IoT device + cadence sensor integration Provides accurate cycling data and carbon reduction measurement. Multiple riding modes for different scenarios Commuting, daily riding, fitness, business trips, and more. Automatic carbon credit calculation The system processes data monthly and displays “valid distance” based on compliance rules. Reliable and traceable carbon records Designed for transparency and compatible with carbon credit verification standards. How It Works Log in to your account Bind your bicycle/e-bike and IoT device Select a riding mode and start cycling The system records your mileage and converts it into carbon credits Monthly processing calculates compliant “valid distance” and carbon results Build Your Low-Carbon Mobility Journey With “GRNTRX,” every ride becomes more than a commute—it's a contribution to a greener future. Accurately track, accumulate, and verify carbon credits suitable for individuals, organizations, and sustainability initiatives.
Screenshots
Verdict
The clearest difference is ads: GRNTRX at none against Expiry Journal's shown. GRNTRX also leads on update cadence (every 2 months vs every 5 months). Expiry Journal's advantage is device support (3 vs 1) and iOS requirement (14.1 vs 16.0). On price and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Expiry Journal ships an update every 5 months, GRNTRX every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Expiry Journal | GRNTRX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (47 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 47 — better | — |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 37 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Fung Yiu Fu | 鴻太科技股份有限公司 |
In-app purchases
Expiry Journal
No in-app purchases
GRNTRX
No in-app purchases









