Tmmr vs SinceWhen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tmmr
This tool helps you track important dates with customizable countdowns. It offers personalization options, real-time updates, and smart reminders. Seamlessly integrate with your calendar and view progress with home screen widgets.
- Unlimited countdown events
- Personalization with emojis and themes
- Real-time countdown display
- Smart repeat events
- Calendar integration
- Home screen and lock screen widgets
- Tag management for organization
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Countdown is an elegant and minimalist free countdown tool that helps you easily track every important day in your life. Whether it's birthdays, anniversaries, holidays, or work deadlines, let Countdown be your most thoughtful time management assistant. Core Features Unlimited Countdowns: - Create unlimited countdown events to record all important moments - Support all-day events and precise time settings down to the minute - Smart sorting with upcoming events automatically pinned to the top Personalization - 200+ beautiful emojis to choose a unique icon for each event - 6 preset theme colors to create your unique visual style - Custom tag system for easy categorization and management Real-time Countdown - Precisely displays years, months, days, hours, minutes, and seconds - Support weekday mode, counting only Monday to Friday - Automatically distinguishes future and past events Smart Repeat - Support daily, weekly, monthly, and yearly repeats - Repeating events automatically calculate the next cycle - Perfect for birthdays, anniversaries, and other periodic events Calendar Integration - One-tap import from system calendar - Export countdowns to calendar - Seamless sync, never miss any important arrangements Thoughtful Reminders - Reminder when event completes - 1 day before reminder - 1 week before reminder - Multiple reminders to ensure you never miss important moments Home Screen & Lock Screen Widgets - Multiple styles: small and medium sizes - Real-time updates, view without opening the app - Support lock screen widgets to track countdown anytime Tag Management - Preset tags: Birthday, Celebration, Work, Travel, etc. - Custom tags for flexible event organization - Tag filtering to quickly find target events Data Security - Local storage ensures privacy and security - Support event archiving to preserve history - One-tap duplicate to quickly create similar events Use Cases - Birthday countdowns: Record birthdays of family and friends - Anniversaries: Relationship anniversaries, wedding anniversaries - Holidays: Spring Festival, Christmas, vacation plans - Work deadlines: Project deadlines, meeting times - Study plans: Exam dates, thesis defense - Fitness goals: Workout check-ins, competition dates - Travel plans: Departure dates, return times Why Choose Countdown? - Simple and beautiful interface with smooth, intuitive operation - Complete and powerful features to meet all countdown needs - Real-time updates with precise countdown display down to seconds - Widget support to view countdown anytime, anywhere - Privacy and security with data stored only on local device - Completely free with no ads Privacy Policy: https://indecisive-blackberry-1b0.notion.site/Privacy-Policy-2dbc773b6a0780a6af47fbde5c0cb930 Terms of Use: https://indecisive-blackberry-1b0.notion.site/Terms-of-Use-2dbc773b6a07801587a1f2b1165d82fc Feel free to contact us: amosiper@gmail.com
SinceWhen
Track the time elapsed since important events, from personal care to home maintenance. Get gentle reminders for when things are due next, with smart predictions based on your logging habits. Designed for real life, it offers a private and guilt-free way to manage recurring tasks.
- Log events with one tap
- Smart predictions for due dates
- Widgets for Home and Lock Screen
- Siri and Shortcuts integration
- Multi-day event tracking
- Calendar and chart visualizations
- Private by design, no account needed
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Not everything is a daily habit. SinceWhen tells you how long it's been since the last haircut, oil change, vet visit, or dose, and when it's likely due next. One tap to log. No streaks. No guilt. No account. HOW IT WORKS • Name something you do now and then • Tap to log it, from the app, a widget, your Lock Screen, or Siri • SinceWhen learns your rhythm and shows what's due BUILT FOR REAL LIFE • Home & car: AC filters, oil changes, smoke detectors, deep cleans • Plants & pets: watering, fertilizing, flea treatments, vet visits • Health & self-care: as-needed medication, vitamins, skincare, dentist • Life admin: haircuts, calling family, reviewing subscriptions • ADHD-friendly: a zero-shame history for time blindness SMART, GENTLE PREDICTIONS SinceWhen studies the gaps between your logs and says things like "Usually every 6 weeks" and "Expected tomorrow". Pattern aware skips one-off long gaps, like a week away, and follows your real routine. Optional nudges arrive only when something is actually due, and you can log straight from the notification. MULTI-DAY EVENTS Tap once to start, tap again to end. Trips, sick days, and cycles are counted as Day 1, Day 2, and so on, with the full duration shaded on your charts. LOG IT IN SECONDS • Home Screen and Lock Screen widgets • Undo an accidental tap right where you made it • Siri and Shortcuts: "Hey Siri, log haircut" • Add a note, or backdate a log in a couple of taps EVERYTHING AT A GLANCE • Calendar with a ring on the next expected day • Interval and monthly charts • Categories with their own insights • Pause an event while you're away so predictions stay honest • Grid or list, pin what matters, dark mode, iPhone and iPad PRIVATE BY DESIGN No accounts, no ads, no analytics. Your timeline stays on your device and in your own iCloud. Export everything as JSON any time. FREE TO START Your first 3 events are free forever with every core feature. SINCEWHEN PRO Unlimited events, iCloud sync and backup, Siri and Shortcuts, and JSON export. • Monthly and Yearly: Family Sharing included • Lifetime: pay once, own it forever (Family Sharing not included) Available in English, German, Japanese, Spanish, French, Portuguese, Korean, and Italian. Privacy Policy: https://devapt.com/sincewhen/privacy Terms of Use: https://devapt.com/sincewhen/terms
Screenshots
Verdict
The clearest difference is monetization model: Tmmr at free against SinceWhen's freemium. Tmmr also leads on review sentiment (100% vs 88%). On price, rating, ratings volume and update cadence 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. Tmmr sells 1 one-off in-app purchase and SinceWhen sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.4 for Tmmr against 4.4 for SinceWhen. Both are backed by a comparable volume of ratings — 9 and 14 respectively. Written reviews are what separate them: 100% of Tmmr's written reviews are positive against 88% of SinceWhen's.
Both ship on a similar rhythm, roughly weekly. Both last shipped on November 5, 2026.
| Parameter | Tmmr | SinceWhen |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (9 ratings) — better | 4.4 (14 ratings) |
| Positive reviews | 100.0% of reviews — better | 87.5% of reviews |
| Number of ratings | 9 | 14 — better |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 27 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | 伟 潘 | Basharath Shaik |
Customer experience
Tmmr
SinceWhen
In-app purchases
Tmmr
- Lifetime Membership$4.99
SinceWhen
- SinceWhen Pro + Family (Monthly)$4.991 Month
- SinceWhen Pro + Family (Yearly)$19.991 Year
- SinceWhen Pro (Lifetime)$39.99








