BriefLook vs Commaday
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
BriefLook
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BriefLook reads your mail for you. Point your iPhone's camera at a letter and BriefLook summarizes it in your iPhone's language, whatever language the letter is written in. You can also share PDFs and photos of letters to BriefLook from other apps. Living abroad and can't quickly tell what your mail says? Is it a bill, a reminder, or something you can ignore? BriefLook tells you in seconds. โข No ads and no ad tracking. โข Letters are read on your iPhone; only the text is sent to create your summary, and BriefLook doesn't keep it. โข Works on iPhone 6s, iPhone SE (1st generation) and later. BriefLook requires an inexpensive monthly subscription, which renews automatically until cancelled. You can cancel at any time in your Apple Account settings or from the About screen in the app. Subscriptions are governed by Apple's standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Commaday
This app helps you build a journaling habit by encouraging you to write just one sentence a day. It offers daily prompts and a unique 'comma' system to maintain streaks, even if you miss a day. Your entries are stored locally on your device for privacy.
- One-sentence daily entries
- Daily themes and keywords
- Streak tracking with 'commas'
- Calendar view of entries
- Local device storage
- Google Drive backup option
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A note first: the app's interface is entirely in Korean. There is no English UI yet. If you read Korean comfortably โ or you're learning and want the immersion โ it works as-is. I'd rather you know before installing. Inside the app you'll see its Korean name, ๋์์ฅ์จ. How many journals have you started and left behind? Commaday is a diary built around one line a day. Too long to write, too imperfect to post, so you put it off โ this app starts from the smallest habit instead. โ One line a day One sentence is enough. You can attach a photo if you want. On days when nothing comes to mind, a prompt is waiting: 66 sentence prompts and 60 words run on separate cycles, so a given pairing takes nearly two years to come back. You can ignore both and write freely. If you'd like, a quiet reminder arrives each night at a time you choose. You can change it in settings. โ The comma that keeps you going Write daily and your streak builds. Every seven days you earn a comma, and you can hold up to two. If you're running low, you can earn one by watching a single ad. Take a day off and a comma fills it in for you. And if a streak does end, every entry you wrote stays exactly where it is โ nothing is deleted, and nothing counts down to a next goal. โ Your time, gathered on a calendar The days you wrote are joined by a golden thread across the calendar. Look back after a month and the single lines have quietly become a story. โ Your writing stays on your phone No account, no sign-up, no server of mine. Everything is stored on your device. An optional Google Drive backup lets you move your entries and photos to a new phone. โ Premium (optional) ยท All 3 ways in one day โ Freeform, Sentence, Word ยท 3 photos per entry ยท Write your own prompts and keep them ยท Export as PDF โ each month on one calendar cover A one-time purchase. The free way you've been writing stays exactly as it is. Tonight, just one line.
Screenshots
Verdict
The clearest difference is ads: BriefLook at none against Commaday's shown. BriefLook also leads on device support (3 vs 1). Commaday's advantage is update cadence (every 9 days vs monthly). On price, in-app purchases and iOS requirement 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. BriefLook sells 3 in-app purchases, starting at $1.99 per month and Commaday sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
BriefLook ships an update monthly, Commaday every 9 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | BriefLook | Commaday |
|---|---|---|
| Price | Free | Free |
| Positive reviews | โ | 100.0% of reviews |
| Update frequency | Monthly | Every 9 days โ better |
| Ads | No โ better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | โ | Ad-supported |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 15.6 โ better | 16.4 |
| Further details โ not scored | ||
| Size | 35 MB | 78 MB |
| Age rating | 12+ | 4+ |
| Developer | Aardustry GmbH | WonHyeong Chang |
In-app purchases
BriefLook
- Monthly Subscription7 Days trial$1.991 Month
- Monthly Ad-Free Subscription$3.991 Month
- Annual Subscription7 Days trial$19.991 Year
Commaday
- Premium - All 3 Ways in one day$9.99









