Grat vs NotTODO
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.
NotTODO
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ใใใชใใใจใ็ฎก็ใใใขใใช ๆช็ฟๆ ฃใๆญใกๅใใใใฎๆฐใใ็ฟๆ ฃใๅงใใพใใใใ ใใฎใขใใชใงใฏใใใใชใใใจใใชในใใซใใฆ้็ฅใงใชใใคใณใใใ็ป้ขใงๅธธใซ็ขบ่ชใๅ ฑๆๆฉ่ฝใงไปฒ้ใจใขใใใผใทใงใณใ้ซใใใใจใใงใใพใใ ใทใณใใซใงๅนๆ็ใช่ชๅทฑ็ฎก็ใใผใซใใใฒใ่ฉฆใใใ ใใใ
Screenshots
Verdict
The clearest difference is in-app purchases: NotTODO at none against Grat's 1. Grat's advantage is update cadence (every 3 days vs every 2 months) and iOS requirement (12.0 vs 17.5). 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
Both are free to download. Grat sells 1 one-off in-app purchase. NotTODO asks for nothing beyond the download.
Grat ships an update every 3 days, NotTODO every 2 months. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.
| Parameter | Grat | NotTODO |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days โ better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 โ better | 17.5 |
| Further details โ not scored | ||
| Size | 70 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Apero, Inc. | Yoshito Usui |
In-app purchases
Grat
- Carnation Theme$0.99
NotTODO
No in-app purchases









