Scientific Timer vs (nothing) To Do
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Scientific Timer
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Scientific Timer helps researchers keep complex experiments on schedule. It breaks multi-step protocols into timer-tasks, so every incubation, wash and spin gets its own timer, in order, and you always know what comes next. Tired of juggling kitchen timers across the bench, or losing track of which tube went in the centrifuge when? Start from a curated protocol or build your own, then run as many timer-tasks in parallel as your experiments need. FEATURES PROTOCOLS AS TIMER-TASKS Each step of a protocol becomes a timer-task with its name, duration and position. Start, pause and reset each one on its own, and see its progress at a glance. CURATED PROTOCOLS, READY TO RUN 12 protocols with 211 timer-tasks, already set up: 10x Chromium Single Cell 3' Gene Expression v4 and 5' Gene Expression v3, 10x Xenium In Situ Gene Expression, ScaleBio Single Cell RNA Sequencing v1.1, Twist Library Preparation EF 2.0, Beckman Coulter SPRIselect left-side and double-sided size selection, Qiagen QIAamp DNA Micro, Qiagen RNeasy Midi/Maxi, NEB Ligation, immunofluorescence on frozen sections and trypsinization. Choose the ones you use when you first open the app, and change your selection later in Settings. YOUR OWN PROTOCOLS Create protocols and timer-tasks of your own, up to 24 hours each, as a countdown timer or a stopwatch. Put steps in the order you run them and mark your favorites. RUN MANY AT ONCE Run as many timer-tasks in parallel as you need, across several protocols. Timers keep counting while the app is closed, and a timer that passes its target keeps going, shown with a "+", so you know exactly how far over it is. QUIET NOTIFICATIONS A subtle notification on your iPhone tells you when a timer-task is done, instead of another alarm ringing across the lab. SEARCH Find a protocol by name in your library, or a timer-task by name within a protocol. BACK UP AND SHARE Export the protocols you created to a file, and import them again on another iPhone or share them with your lab. ACCESSIBLE TO EVERYONE Works with VoiceOver and Voice Control, adapts to the largest text sizes, supports Dark Mode, respects Reduce Motion, and does not rely on colour alone. PRIVATE BY DESIGN Scientific Timer collects no data. No account, no sign-in, no analytics, no tracking, no third-party SDKs. Your protocols and timers stay on your iPhone. LANGUAGES The app and its curated protocols in English, French, Spanish and Simplified Chinese. REQUIREMENTS iPhone with iOS 18 or later. Privacy Policy: https://elyzeo.com/apps/scientific-timer/privacy.html
(nothing) To Do
This app helps you organize tasks using the Eisenhower Decision Matrix, sorting them into 'Do,' 'Schedule,' 'Delegate,' and 'Delete' categories. It offers smart prioritization, a minimalist design, and syncs across devices. Focus on what truly matters and reduce overwhelm.
- Eisenhower Decision Matrix prioritization
- Four-quadrant task view
- Minimalist design
- Apple Watch support
- iCloud sync
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Transform chaos into clarity with the Eisenhower Matrix Finally, a todo app that helps you focus on what actually matters. (nothing) To Do uses the proven Eisenhower Decision Matrix to automatically sort your tasks into four powerful categories: DO - Urgent & Important (Crisis mode) SCHEDULE - Important but not urgent (Your future self will thank you) DELEGATE - Urgent but not important (Let others handle it) DELETE - Neither urgent nor important (Just... don't) Why you'll love it: Smart prioritization - Never wonder "what should I do next?" again Beautiful, minimal design - Focus on tasks, not the app Apple Watch support - Quick task management on your wrist iCloud sync - Seamlessly across all your devices Four-quadrant view - See your entire productivity landscape at once Stop drowning in endless todo lists. Start focusing on what moves the needle. Perfect for: - Busy professionals juggling multiple priorities - Students managing coursework and life - Anyone feeling overwhelmed by their todo list - People who want to work smarter, not harder Download (nothing) To Do and discover the power of having nothing urgent left to do.
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Verdict
The clearest difference is update cadence: (nothing) To Do at monthly against Scientific Timer's every 16 months. (nothing) To Do also leads on device support (3 vs 1). Scientific Timer's advantage is price ($0.99 vs $3.99). On ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Scientific Timer costs $0.99 and (nothing) To Do $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Scientific Timer ships an update every 16 months, (nothing) To Do monthly. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.
| Parameter | Scientific Timer | (nothing) To Do |
|---|---|---|
| Price | $0.99 โ better | $3.99 |
| Positive reviews | โ | 100.0% of reviews |
| Update frequency | Every 16 months | Monthly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | โ | Paid |
| Devices | iPhone | iPhone, iPad, Apple Watch โ better |
| Requires iOS | 18.0 | 18.0 |
| Further details โ not scored | ||
| Size | 8 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Stephane Boutet | Anand Raj R |
In-app purchases
Scientific Timer
No in-app purchases
(nothing) To Do
No in-app purchases
Questions
Is Scientific Timer free?
Is (nothing) To Do free?
Do Scientific Timer or (nothing) To Do have ads?
Which is updated more often, Scientific Timer or (nothing) To Do?
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