BaseReminder vs CheckOne
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BaseReminder
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Simple Reminder is a straightforward reminder app designed to help you never forget important tasks. 【Key Features】 • Create, edit, and delete reminders • Get notified at your specified date and time • Repeating reminders (daily, weekly, monthly) - Premium feature • Clean and intuitive interface 【Perfect For】 • People who tend to forget appointments • Those looking for a simple reminder app • Anyone who just wants notifications without complex features 【Free Version】 • Create up to 3 reminders • Basic notification functionality 【Premium Version】 • Unlimited reminders • Repeating reminders (daily, weekly, monthly) • Ad-free experience Manage your important tasks with Simple Reminder. 【Links】 • Support: https://tsuzukit.com/contact/ • Terms of Service: https://tsuzukit.com/legal/terms-of-service.html • Privacy Policy: https://tsuzukit.com/legal/privacy-policy.html
CheckOne
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CheckOne shows checklist items one at a time so you can confirm everything without missing anything. Create checklists for things you want to confirm in order, such as before going out, travel prep, leaving a hotel, before a meeting, gym items, morning routines, or bedtime routines. Instead of looking at a long checklist all at once, CheckOne shows the current item clearly and lets you move forward as you check each one. It helps you focus on the next thing to confirm. CheckOne also supports Apple Watch. You can view checklists, start a run, check items, and keep the run state in sync with iPhone. Templates are included so you can start quickly, and you can also create your own checklists from scratch. Features - Create and edit checklists - Create from templates - Run a checklist one item at a time - Move items later and optionally save the new order - Choose checklist colors - Sync run state with Apple Watch - Haptic feedback while checking items - Double Tap support on Apple Watch CheckOne Plus CheckOne Plus unlocks every feature with one purchase, including creating multiple checklists, choosing any color, and moving items later. Note: Double Tap is available on supported Apple Watch devices with watchOS 11 or later. Terms of Use: https://apps.mishimadesign.com/checkone/legal.html#terms-en
Screenshots
Verdict
The clearest difference is update cadence: CheckOne at every 4 months against BaseReminder's every 10 months. On price, 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
Both are free to download. BaseReminder sells 2 in-app purchases, starting at $0.99 per 7 days and CheckOne sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
BaseReminder ships an update every 10 months, CheckOne every 4 months. The most recent releases landed on November 9, 2026 and November 13, 2026 respectively.
| Parameter | BaseReminder | CheckOne |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Tsudukihashi | Mishima Design |
In-app purchases
BaseReminder
- Weekly Plan3 Days trial$0.997 Days
- Lifetime Premium$29.99
CheckOne
- CheckOne Plus$9.99









