Comparison

Daily Countdown vs OIS

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

Head to head
About

Daily Countdown

Track important life events with customizable countdowns and beautiful widgets. Set reminders for any occasion, from weddings and holidays to personal goals and sobriety milestones. Sync your events across devices and personalize your tracking experience.

Highlights
  • Home Screen and Lock Screen widgets
  • Track all event types
  • Customizable themes and layouts
  • Flexible reminder scheduling
  • iCloud cross-device sync
  • Add event notes
Features
Read full description

Daily Countdown is the ultimate event tracker and days counter for life's most important moments. Track the days until your wedding, the hours until vacation, or the time since your sobriety milestone. This powerful app acts as your personal retirement timer and anniversary tracker, ensuring you never miss a due date or important holiday. Add unlimited countdowns, use beautiful Home Screen widgets, and keep everything synced across devices with iCloud. Key Features: • Widget Support: Display your top countdowns directly on your Home Screen and Lock Screen. • All Event Types Supported: Countdown to wedding, baby due date, exams, retirement, sober milestones, holiday trips, or any goal you want to achieve. • Event Countdown Lists: View all your events in one place. Drag to reorder and focus on what matters most. • Themes & Personalization: Customize your countdown background, layout, and fonts to match your mood or the occasion. • Flexible Notifications: Schedule alerts minutes, hours, days, or even months in advance for each countdown. Get repeat alerts daily, weekly, or at custom intervals. • Cloud Sync: Access the same countdown lists on iPhone, iPad, and Mac with iCloud. • Event Notes: Add details, links, or ideas to each countdown. Terms of use: https://color-calculator.wixsite.com/dailycount/terms-of-use Privacy policy: https://color-calculator.wixsite.com/dailycount/app-privacy-policy Daily Countdown is free but you can also upgrade to Premium for full access to premium features for subscription service with 7-day free trial: $7.99 a year, one-time purchase: $24.99 forever(price in USD). Subscriptions for Pro account will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24-hours before the end of the current period. You will not be able to cancel a subscription during the active period. You can manage your subscriptions in the Account Settings after purchase. If you have any questions, let us know at [colorcalculator@outlook.com]

About

OIS

Features
Read full description

本App為Immersive 3D Class的操控App。 Immersive 3D Class整合各種影視與AI技術運用於教學領域,讓遠距教學不再是辛苦的教學備案,引領前進教育科技,詮釋教材另一種可能性。 功能: 01.可即時進行綠幕或無幕的人像去背,讓遠距教學也可看到老師本人與教材的相對關係。 02.即時疊層多層課程教材,其元素大致包含圖片、影片、PPT簡報及3D物件...等。 03.多層教材編排,藉由腳本編輯器編輯所有教材,老師僅需切換頁數即可輕鬆講解。 04.老師可透過平板App輕鬆操控:進行教材頁數切換、3D物件執行放大、縮小、旋轉、位移以及一鍵拆解。 05.教學過程皆可進行錄播,提供後續留存回放複習觀看,或亦可直播進行實況教學。 06.可搭配Resolume Arena進行VJ控制。 軟體介紹:https://www.sdc.org.tw/product/optoma-mr%e6%95%99%e8%82%b2%e7%96%8a%e5%b1%a4%e7%b3%bb%e7%b5%b1/

Screenshots

Daily Countdown4 screens
OIS4 screens

Verdict

The call

The clearest difference is in-app purchases: OIS at none against Daily Countdown's 2. OIS also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.0). Daily Countdown's advantage is update cadence (every 2 months vs every 5 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Daily Countdown sells 2 in-app purchases, starting at $7.49 per year. OIS asks for nothing beyond the download.

UpkeepUpdate frequency

Daily Countdown ships an update every 2 months, OIS every 5 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Daily Countdown versus OIS: the parameters behind the verdict, then further details
ParameterDaily CountdownOIS
PriceFreeFree
Rating4.6 (134 ratings) — better—
Positive reviews53.8% of reviews—
Number of ratings134 — better—
Update frequencyEvery 2 months — betterEvery 5 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.012.0 — better
Further details — not scored
Size66 MB158 MB
Age rating4+17+
DeveloperWuhan Ananta Technology Co., Ltd.Optoma Corporation

In-app purchases

2 purchases

Daily Countdown

Subscriptions1
  • Premium Membership - 1 Year7 Days trial$7.491 Year
One-time1
  • Premium Membership - Forever$24.99
None

OIS

No in-app purchases

Questions

Is Daily Countdown free?
Daily Countdown is free to download, with in-app purchases available.
Is OIS free?
OIS is free to download, with no in-app purchases.
Do Daily Countdown or OIS have ads?
Daily Countdown shows ads; OIS does not.
Which is updated more often, Daily Countdown or OIS?
Daily Countdown ships an update every 2 months, and OIS every 5 months. Most recently, Daily Countdown was updated on November 3, 2026 and OIS on October 25, 2026.

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