Comparison

Time Timer vs TD Snap®

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

Head to head
About

Time Timer

This app provides a visual representation of time passing, making it easier to manage tasks and routines. It's designed to be inclusive and flexible for various needs, from educational settings to personal productivity.

Highlights
  • Iconic visual timer with disappearing disk
  • Inclusive design for various needs
  • Flexible routine creation and sequencing
  • Multiple timers and preset options
  • Customizable sound, vibration, and color
Features
Read full description

Feel time move. Stay on track. Stress less. From the makers of the original red disk timer, the Time Timer® App transforms the powerful visual tool trusted by families, teachers, therapists, and productivity pros for over 30 years into a fully customizable experience on your device. Whether you’re helping students build focus, supporting kids through daily routines, or simply managing your own tasks without overwhelm—Time Timer makes time feel more tangible and manageable. What Makes Time Timer Different? Iconic Visual Timer Watch time disappear as the disk gets smaller—a simple, intuitive way to feel time passing, not just track it. Inclusive by Design Trusted by people with ADHD, Autism, executive function challenges, or just a busy brain. Invented by a mom for her child, Time Timer has supported users of all abilities for decades. Flexible for Every Routine Use it once or build structured sequences. Create presets for daily habits. Run multiple timers at once. Make routines visual and calm transitions. Trusted in Schools, Homes & Workplaces From kindergarten classrooms to therapy sessions to boardrooms, Time Timer helps reduce resistance, improve focus, and make time awareness easier for everyone. Free Features Include: Create up to 3 timers Run multiple timers at once Use the original 60-minute red disk — or choose any duration Adjust sound, vibration, and color with limited options Premium Features Unlock Even More: Unlimited customization Build routines with timer sequencing (morning checklists, therapy steps, work sprints) Organize timers with Groups Sync across mobile and desktop devices Quick Set +/- buttons for fast adjustments Customize disk size and detail level Use Time Timer For: Morning and bedtime routines Homework and study blocks Transitions between tasks Work sprints and focus sessions Therapy, coaching, or classroom support Daily life skills for kids, teens, and adults Why It Works Time Timer® transforms time from something abstract and invisible into something your eyes can track and your brain can trust. That’s why it’s backed by research, loved by educators, and recommended by occupational therapists worldwide. Created for real life. Trusted for decades. Download Time Timer today and feel the difference.

About

TD Snap®

This communication software assists individuals with speech and language disabilities by offering symbol-supported and text-based communication options. It features customizable page sets and editing tools, accessible via touch, eye gaze, and switch access. A subscription is required after a trial period.

Highlights
  • Symbol-supported and text-based page sets
  • Customizable editing tools
  • Touch, eye gaze, and switch access
  • Picture Communication Symbols library
  • Visual schedules and timers
  • Cloud-based content syncing
Features
Read full description

TD Snap® is a flexible, robust communication software for people with speech and language disabilities such as autism, cerebral palsy and aphasia. Created by Tobii Dynavox, a leader in augmentative and alternative communication (AAC), TD Snap provides a choice of evidence-based, professionally developed page sets designed to meet different communication needs and preferences, with both symbol-supported and text-based options. TD Snap includes easy-to-use editing tools to create a personalized experience, and is accessible via touch, eye gaze and switch access methods. A monthly subscription is required to enable speech following a 1-month trial period. Tobii Dynavox offers complementary resources to help communicators, caregivers, and professionals succeed with TD Snap. These resources can be found by visiting myTobiiDynavox.com or tobiidynavox.com. Have you purchased a Tobii Dynavox device and looking to use your companion TD Snap license on an iOS device? Download this app and log into myTobiiDynavox in the start-up wizard. Customizable TD Snap Page Sets: • Core First: A symbol-supported page set enabling a path to literacy at any stage of language development, now also available in High contrast • Motor Plan: A symbol-supported page set enabling efficient language acquisition at any age, custom designed for both touch and eye gaze • Express: A symbol-supported page set to help people express themselves using theme-based phrases and words, now also available in bilingual Spanish/English • Text: A page set for those who are literate or transitioning from symbol supports to literacy • Scanning: A page set for those who use scanning as their primary access method, • Aphasia: A page set to help adults with aphasia communicate while also supporting language recovery , now also available in bilingual Spanish/English • PODD*: A page set based on the Pragmatic Organization Dynamic Display vocabulary strategy, developed by AAC expert Gayle Porter • Gateway*: A page set based on the Gateway vocabulary strategy, developed by Joan Bruno *Denotes in-app purchase of an additional monthly subscription per page or symbol set. Developed by a third party. Powerful Set of Integrated TD Snap Tools: • Editing: An intuitive editing tool to help customize buttons to meet a communicator’s unique needs • Diversity: A variety of diversity settings that let you customize skin tone, hair shades, and more • PCS: A built-in library of over 75,000 Picture Communication Symbols translated into over 25 languages • Search: A search bar to locate words and symbols with an easy and accessible path to find them • Visual Supports: A set of supports like visual schedules, timers, and scripts • Google Assistant: An integrated tool enabling symbol-supported access to Google Assistant • QuickFires: A set of commonly used pre-programmed phrases to make communication smoother • myTobiiDynavox: A cloud-based resource for backing up, sharing, and syncing customized content. How Subscriptions Work Following the 1-month free trial, your Apple ID payment method on file will automatically be charged monthly unless you cancel 24 hours before the trial ends. Subsequent monthly payments will be charged to your Apple ID payment method 24 hours before the end of each period. Your subscriptions are managed in account settings on the App Store. TD Snap® is a trademark and registered trademark of Tobii Dynavox AB. Tobii Dynavox cannot guarantee compatibility of TD Snap with any non-Tobii Dynavox brand of hardware and will not offer technical support for compatibility issues. All downloads are governed by TD Snap License Agreement for Download.

Screenshots

Time Timer4 screens

Verdict

The call

The clearest difference is monetization model: Time Timer at freemium against TD Snap®'s subscription. Time Timer also leads on review sentiment (63% vs 30%) and rating (4.6 vs 4.2). TD Snap®'s advantage is iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases 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. Time Timer sells 1 in-app purchase, starting at $9.95 per year and TD Snap® sells 10 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Time Timer holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Time Timer has 15K ratings behind it against 810, so its average is the more settled of the two. Written reviews point the same way: 63% of Time Timer's written reviews are positive against 30% of TD Snap®'s.

UpkeepUpdate frequency

Time Timer ships an update every 2 weeks, TD Snap® every 2 months. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

Scorecard7 real differences · 3 level
Time Timer versus TD Snap®: the parameters behind the verdict, then further details
ParameterTime TimerTD Snap®
PriceFreeFree
Rating4.6 (15K ratings) — better4.2 (810 ratings)
Positive reviews62.9% of reviews — better29.6% of reviews
Number of ratings15K — better810
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterSubscription
DevicesiPhone, iPad, Mac, Apple Watch — betteriPad
Requires iOS16.013.0 — better
Further details — not scored
Size174 MB3.4 GB
Age rating4+4+
DeveloperTime Timer LLCTobii Dynavox LLC

Customer experience

Time Timer

All ratings14,552 ratings
Positive90.3%
Neutral3.2%
Negative6.5%
Written reviews334 reviews
Positive62.9%
Neutral14.1%
Negative23.1%

TD Snap®

All ratings810 ratings
Positive77.5%
Neutral6.0%
Negative16.4%
Written reviews142 reviews
Positive29.6%
Neutral6.3%
Negative64.1%

User reviews

Time Timer

From 15K App Store ratings

What we love

  • 👍 Helpful for ADHD and autism
  • 🚀 Great visual timer
  • 👍 Customizable timers
  • 👍 Useful for presentations and meetings
  • 👍 Indispensable for organization and time management

Room to improve

  • 🐛 Unreliable sound/vibration alerts
  • 🐛 Inconsistent behavior when phone is locked or app is minimized
  • 🐛 Occasional crashes or bugs
  • 🔋 Screen turns off during timer
  • 👎 Subscription model for some features

TD Snap®

From 810 App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Customizable
  • 🚀 Intuitive navigation
  • 👍 Helpful supports and features
  • 🚀 Flexible and robust

Room to improve

  • 🔒 Subscription model for voice
  • 🐛 Voice issues after updates
  • 💰 Expensive subscription
  • 🔒 Removing previously paid features
  • 🐛 Crashes and bugs

Bugs and requests

Time Timer

Reported bugs

4 issues
  • No timers show up in app
  • Timer stops working when phone is locked
  • Inconsistent dark mode implementation
  • Vibration doesn't work as expected

Requested features

7 requests
  • Add Apple Watch complication
  • Allow rearranging of timers
  • Ability to continue timer after time is up
  • Option to change timer color and background
  • Lock timer settings on Apple Watch
Show 2 more
  • Add percentage countdown option
  • Integrate current time into app

TD Snap®

Reported bugs

4 issues
  • Voice disappearing after updates
  • Crashes on launch
  • Incompatibility with iPad Pro
  • Inability to restore purchased content

Requested features

5 requests
  • Ability to change undo symbol
  • Link to ACCIL image database
  • Ability to set user age for appropriate vocabulary
  • More robust core vocabulary
  • Easier grammar modeling

In-app purchases

1 purchases

Time Timer

Subscriptions1
  • Unlock all Time Timer features$9.951 Year
10 purchases

TD Snap®

Subscriptions4
  • Gateway Monthly1 Month trial$4.991 Month
  • PODD Monthly1 Month trial$4.991 Month
  • Metacom Monthly1 Month trial$4.991 Month
Show 1 more
  • Speaking Upgrade Monthly1 Month trial$9.991 Month
One-time6
  • Acapela Voices$39.99
  • Nuance Voices$39.99
  • Speaking Upgrade$49.99
Show 3 more
  • METACOM Symbols$49.99
  • PODD Page Sets$149.99
  • Gateway Page Sets$149.99

Questions

Is Time Timer free?
Time Timer is free to download, with in-app purchases available.
Is TD Snap® free?
TD Snap® is free to download, with in-app purchases available.
Which has better reviews, Time Timer or TD Snap®?
Time Timer is rated higher. Time Timer averages 4.6 out of 5 from 15K ratings, while TD Snap® averages 4.2 from 810 ratings.
Do Time Timer or TD Snap® have ads?
Neither Time Timer nor TD Snap® shows ads.
Which is updated more often, Time Timer or TD Snap®?
Time Timer ships an update every 2 weeks, and TD Snap® every 2 months. Most recently, Time Timer was updated on September 24, 2026 and TD Snap® on September 21, 2026.

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