Countdown to Big Day vs One Diary!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Countdown to Big Day
Track important dates with a simple countdown. See how many days remain until your next event or how many have passed since a past one. Never miss a special occasion again.
- Add event titles and dates
- Format countdown timers
- Set dates in past or future
- Edit and delete events
- Receive event due date notifications
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Application "Countdown" shows you how many days are left until a certain event, or how many days have passed. When application "Countdown" helps you: If you want to know how many days remaining before your wedding, how soon will come to one of the army, when the birthday party of relatives or long-awaited weekend or holiday. You can follow any important day for you! Features: - Add the title and date of events - Format countdown timer - Set date in the past or future - Edit Event - Deleting an event - Get a notification on event due date
One Diary!
Easily record your daily life with beautiful templates and summaries. This app helps you build a habit of journaling, offers secure storage, and allows sharing your memories.
- Daily diary entries
- Beautiful diary templates
- Cloud backup and sync
- Shareable diary cards
- Daily writing reminders
- Password protection
- PDF export
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"One Diary!" lets you record your day in the easiest way. Are you busy with work or study every day? Do you have time to stop and review some of the beauty that happened today? Do you remember how you spent last year today? It's time to cultivate the habit of keeping a diary, record good things, and record a bit - in the simplest way. Write a daily diary, each diary is summarized with a picture and a few words. Writing a diary is no longer your burden. Open "One Diary!" every night, in the best way, let us help you form the habit! ---------- - One Diary currently has 5 beautiful diary format templates to choose from, so your diary is no longer monotonous. - One Diary does not only keep your diary locally, but also last time to the far end. Don't worry about your device being lost if you change your device. - Each journal can generate beautiful cards, save them to albums, or share them where you want to share. - You can set up a reminder to remind you to write a diary at a fixed time every day to develop a good habit of recording every day. - Are you worried about your diary when you use your phone? You can lock your diary and keep your privacy safe. - When editing a diary, you can selectively publish your diary and share your wonderful life with partners around the world. - Add friends and keep a journal with your partner. - Support PDF export diary, don't worry about the diary lost. --- Contact me --- If you have any questions, please contact us. Perhaps your suggestion will appear in future versions, let us make progress together! email : olive_lan@126.com QQ group : 686237990 WeChat: ganlan0415
Screenshots
Verdict
The clearest difference is in-app purchases: Countdown to Big Day at none against One Diary!'s 3. Countdown to Big Day also leads on ads (none vs shown) and ratings volume (6 vs 2). One Diary!'s advantage is review sentiment (91% vs 59%) and rating (4.5 vs 4.3). On price 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
Countdown to Big Day costs $0.99 and One Diary! $0.99 up front. One Diary! sells 3 one-off in-app purchases. Countdown to Big Day asks for nothing beyond the download.
One Diary! holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 59% of Countdown to Big Day's written reviews are positive against 91% of One Diary!'s.
Countdown to Big Day ships an update every 5 weeks, One Diary! fortnightly. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.
| Parameter | Countdown to Big Day | One Diary! |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 4.3 (6 ratings) | 4.5 (2 ratings) — better |
| Positive reviews | 58.7% of reviews | 91.3% of reviews — better |
| Number of ratings | 6 — better | 2 |
| Update frequency | Every 5 weeks | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Igor Kravtsov | 岚 甘 |
Customer experience
Countdown to Big Day
One Diary!
In-app purchases
Countdown to Big Day
No in-app purchases
One Diary!
- cup of drink$0.99
- doughnut$1.99
- steak$4.99
