Comparison

셀로 vs mo.Days

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

셀로

Features
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개인정보 걱정없이 내 집에서 중고폰 판매하는 Sello. 1. 개인정보 걱정없는 안전한 폰테크 하세요 - 집에서 한 번, 수거 후에 전문 솔루션으로 더블체크 데이터 삭제 - 어떠한 방법으로도 복구 불가하도록 안전하게 삭제 2. 중고폰 팔려고 집 밖으로 나가지 마세요 - 내가 원하는 날짜에 집 앞으로 찾아오는 무료 우체국 택배 - 예약번호만 입력하면 끝나는 간편한 무료 GS25 택배 3. 가격변덕 없고, 낮은가격에 실망없는 합리적 보상가를 확인하세요 - 판매 발송 전 외관검사,성능검사를 통한 가격변동폭 최소화 - 더 많은 진단등급 단계를 제공하여 합리적 등급과 적정가격 제공 중고폰 판매는 집에서 편하고 정확하게, Smart Selling Sello 하세요~ [선택 접근 권한 안내] - 카메라: 1:1 문의 및 IMEI 등록 시 사진을 촬영하기 위해 사용됩니다. - 선택 접근 권한에 동의하지 않아도 앱의 기본 서비스는 이용할 수 있습니다. - 카메라 권한에 동의하지 않은 경우 사진 촬영 기능의 이용이 제한될 수 있습니다. - 앨범 사진 첨부는 사용자가 선택한 사진만 불러오며, 갤러리 전체 접근 권한을 요청하지 않습니다.

About

mo.Days

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The screen is simple. What's behind it isn't. The place you named yourself, your people, the temperature at that moment — a whole day lives behind one card. ■ One Photo, One Color, One Line Open the app and today is already there — a photo, the day's mood on it, one line beside it. Pick today's color and it doesn't sit in a dot. It seeps into the photo and becomes the air of that day. The line can be anything. A thought out of nowhere. Something you read once and never let go of. Swipe sideways and yesterday arrives. Then this day last year. One swipe, one day. ■ Down to the Temperature What time it was. Where you were. Who was with you. What the air felt like. Weather is never looked up after the fact. Open an entry three years from now and that spot is still 25°F. A place keeps the name you call it, not the one the map gave it. Not "Coffee Co. #3" — "that window seat." Home past midnight? Leave the time at 1 a.m. and let the entry belong to yesterday. ■ Throw It Down Now, Finish It Later The moments worth keeping arrive when your hands are full. One line is enough. So is one photo. So is nothing but where you're standing. A fragment won't finish itself, and it won't disappear. It waits. One button on the Lock Screen saves it without unlocking your phone. Put it on the Action button, fire it when you arrive somewhere, or ask out loud while you drive. Drop one at every stop, tie them together later, and the hours and distance surface on their own. ■ Answer a Few Questions, and the Day Is Done Every evening it asks once: how was today? It goes in order and skips what doesn't apply. Whatever was on your calendar is already there. You never decide to journal. You answer, and the day is in order. On a day you wrote nothing, one color is a complete day. ■ Your Best Photo Finds Itself Two photos, side by side. Pick the one you lean toward. That's it. It runs like a tournament bracket. Today's winner takes on the week, the week the month, the month the year. Keep going and one photo is left standing for a lifetime. All you did was choose between two. Some pairs can't be called, and those stay open. ■ Find It Without Knowing When What you remember is rarely the date. It's who was there, where you were, what you talked about. Search by person, place, tag, or stretch of time. Press and hold a name to gather every day that person appears in. Pull up five years of "commute," then name all of it "The A Corp Years" at once. Nothing you wrote is touched. ■ Nothing Shows That Anything Is Hidden A locked folder is already a confession. Entries you keep private don't get a padlock. They're simply not there. There's no "Show Hidden" button either — a button like that is the tell. Someone asks for your passcode? Give them a different one. The app opens perfectly with it. ■ Not Deleted, Just Set Aside Not wanting to see something and wanting it gone are different things. Put an entry in the archive and it leaves the timeline, search, and photo matchups. It isn't gone. It stepped back, and it returns exactly where it was. ■ From a Day to a Decade A day is a page. A month is a chapter. A year is a volume. Pull down from the top and the week opens. Then the month, the year, the decade. The further up, the closer to a life. Choose a word for this month, a word for this year. Newlywed. Exam year. Words that belonged to one stretch of time turn out to be its name. Not a highlight reel an algorithm picked — the colors you chose, the photos you chose, the lines you wrote. ■ When the Phone Changes What goes in here can't be made again. It carries over through iCloud, original photos included. Open a new phone and it's all there. Keep your own backups too. Restoring brings back only what went missing. Nothing you wrote in between is overwritten. ■ If You Use mo.Today The to-dos you finished and the routines you kept are already waiting in the evening wrap-up. Just pick what to keep.

Screenshots

셀로4 screens
mo.Days4 screens

Verdict

The call

The clearest difference is price: 셀로 at Free against mo.Days's $1.99. 셀로 also leads on iOS requirement (15.6 vs 26.0). mo.Days's advantage is update cadence (every 3 days vs monthly). On ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

셀로 is free to download; mo.Days costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

셀로 ships an update monthly, mo.Days every 3 days. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 4 level
셀로 versus mo.Days: the parameters behind the verdict, then further details
Parameter셀로mo.Days
PriceFree — better$1.99
Positive reviews20.0% of reviews—
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better26.0
Further details — not scored
Size41 MB22 MB
Age rating4+4+
DeveloperMedialog Corp.MoPlanet Inc.

In-app purchases

None

셀로

No in-app purchases

None

mo.Days

No in-app purchases

Questions

Is 셀로 free?
셀로 is free to download, with no in-app purchases.
Is mo.Days free?
mo.Days costs $1.99, with no in-app purchases.
Do 셀로 or mo.Days have ads?
Neither 셀로 nor mo.Days shows ads.
Which is updated more often, 셀로 or mo.Days?
셀로 ships an update monthly, and mo.Days every 3 days. Most recently, 셀로 was updated on November 7, 2026 and mo.Days on November 10, 2026.

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