Grat vs EVDIG
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Grat
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"Grat" is the app for recording your thanks and showing your gratitude by sending a digital letter. โ For these cases "I want to remember others' favors" "I'm looking for a way to express my gratitude by more than just a chat message but less formal than a paper letter" โ Features โ Write your thanks Write your emotions, thanks, gratitudes, and what you feel awesome about. โ Visualize your stock of gratitudes Your recorded gratitudes are built up and the number is shown on the main page. โ Send a gratitude letter online After writing a letter to whom you want to express your gratitude, you can send an online letter with a published URL. โ Get positive quotes We deliver positive quotes from famous people. โ Customizable appearance You can choose from several background colors. โ Dark theme You can select a dark theme to protect your eyes or save your battery. โ Secure biometrics lock You can lock the app with biometrics like Face ID or Touch ID if you don't want others to see it. We're very pleased if you send feedback from the contact page in the app.
EVDIG
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With EVDIG, you can manage all kinds of resources in one appโdaily tasks, events, things you want to do, food expiration dates, shopping lists, and more. EVDIG is an analytics platform designed to organize all your information in one place and strongly support your decision-making. Simply input your events (like dates), costs, and goals. By keeping a track record of what you've done, you pave the way for smooth, generative AI-driven analysis. It empowers you to review your data and discover behavioral patterns that are hard to grasp relying on just a gut feeling. - No ads - Visualize the data you enter - Export your data as CSV files for deeper analysis Costs - Enter expenses and allocate them by splitting (prorating) as needed. - Visualize saved cost data. - Register costs from photos or images using AI. (A subscription is required.) - Link costs to an event or project. Events - Save events such as dates or trips along with various dimensions/details. - Visualize saved events. - Settle expenses on an event-by-event basis. Tasks - Create recurring tasks to help prevent forgetting household chores and other routines. - Link tasks to an event or project. Wish List (Things to Do) - Write down what you want to do in the future and manage it by phase. - Send notifications to your partner when adding or approving items. (Partner settings must be configured in Settings.) - Set the source (origin) and destination event or project. Expiration Dates - Automatically create expiration entries by scanning JAN codes (and other codes) from the product master. - Manage expiration dates smoothly by scanning QR codes. (This app does not provide a QR code creation feature.) - Link expiration dates to an event or project. Purchases - Automatically create items to buy by scanning JAN codes (and other codes) from the product master. - Smooth purchasing workflow with simple operations.
Screenshots
Verdict
The clearest difference is update cadence: Grat at every 3 days against EVDIG's fortnightly. Grat also leads on iOS requirement (12.0 vs 26.0). On price, ads, in-app purchases 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
Both are free to download. Grat sells 1 one-off in-app purchase and EVDIG sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Grat ships an update every 3 days, EVDIG fortnightly. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.
| Parameter | Grat | EVDIG |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days โ better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 70 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Apero, Inc. | Hayashi Saito |
In-app purchases
Grat
- Carnation Theme$0.99
EVDIG
- Essentials Edition$4.991 Month
- Unlimited Edition$19.991 Month
- Unlimited Edition Annual$199.991 Year









