Comparison

Nujible+ Attention Training vs Simple Stretch Timer

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

Head to head
About

Nujible+ Attention Training

This app uses haptic feedback on your iPhone or Apple Watch to help you maintain focus and combat distractions. It offers behavioral change techniques and analytics to improve attention over time, integrating with your Health app.

Highlights
  • Haptic taps for real-time focus redirection
  • Personalized insights and progress tracking
  • Behavioral science-based attention improvement
  • Pink Noise feature for concentration
  • Apple Watch integration for on-the-go use
  • HealthKit integration
Read full description

You want to stay productive, but your environment is full of distractions that are always trying to DIVIDE your attention. Nujible+ trains you to MAINTAIN your attention. Nujible+ uses periodic, haptic taps on your iPhone or Apple Watch as a subtle but effective nudge to get you back on track! We also want to optimize your ability to be more productive. Nujible+ uses behavioral change techniques to create a unique mental-fitness workout that gives you tools and insight to help you improve your focus and attention over time. Use Nujible+ to train your mental fitness in the same way you train your physical fitness: • Get personal insights to track, challenge, and improve your focus performance over time. • Use Nujible’s Progress Tracker Tools for instructive analytics on attention-based metrics. • Get specific feedback for improving your attention, grounded in behavioral science. With Nujible+, you can workout your attention endurance skills while reading, listening, studying, working, and staying alert. When your head is stuck in the clouds, sometimes you just need a little nudge to get your head back in the game. Nujible+ is designed to be used in the moment that requires your full attention. Instantly launch a session from your Apple Watch or iPhone by selecting your activity category, setting how long and how often you want to receive a nudge, and tapping to start. You can quickly change session settings right from your Apple Watch. Unlike other focus apps, Nujible+ provides physical feedback that continuously prompts you to redirect your wandering thoughts in real-time as you are in class, working, reading or studying. Nujible+ also includes a Pink Noise feature, similar to white noise but specifically used to increase productivity and concentration. The previous version, Nujible: Stay Awake and Alert, proved to be useful for students, professionals, and people with ADHD, and was named one of the “Unbelievably Useful Apple Watch Apps” by DailyTekk. Nujible+ includes all of the useful features from the previous version, PLUS powerful mental-fitness workout tools that will help boost your natural ability to stay focused, alert, and awake! Nujible+ also utilizes HealthKit to integrate your mental-fitness workouts with your Health app. Nujible+ app offers a 7-day free trial with complete access to all content. After the trial period, all content is accessible via quarterly, annual subscriptions, and lifetime purchases. $5.99 quarterly (USD) $19.99 annually (USD) $49.99 Lifetime (USD) Payment will be charged to the iTunes account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the monthly or annual renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: http://www.nujible.com/privacypolicy Includes iCloud data sync integration to support multiple devices. It’s time to train your scatterbrain!

About

Simple Stretch Timer

This app helps you time your stretches with customizable duration and alert settings. It offers vibration and sound cues, allowing you to keep your device in your pocket. Designed for simplicity, it requires no complex setup or user accounts.

Highlights
  • Customizable timer duration
  • Sound alerts
  • Vibration alerts
  • Repeat timer function
  • Pocket-friendly vibration cues
  • No user accounts
Features
Read full description

Simple Stretch Timer is your trusty stretching companion. This timer is as simple as it gets: no settings pages, no premium features, no user accounts, no headaches. Just time your stretch. Control timer duration, sound alerts, vibration alerts and toggle repeat to create a timer that fits your needs. And with strong vibration cues, you can keep it in your pocket without missing a beat. Don't waste time learning how to use a new timer. Keep it simple, and get Simple Stretch Timer today! (This app will always be 100% free and private: it will never have in-app purchases or a premium counterpart and no data will be collected from users by the developer or any third party.)

Screenshots

Nujible+ Attention Training4 screens
Simple Stretch Timer3 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Stretch Timer at none against Nujible+ Attention Training's 3. Nujible+ Attention Training's advantage is update cadence (monthly vs every 22 months) and iOS requirement (13.0 vs 15.0). On price, rating, review sentiment and ratings volume 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. Nujible+ Attention Training sells 3 in-app purchases, starting at $5.99 per 3 months. Simple Stretch Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Simple Stretch Timer holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 14 and 23 respectively. Written reviews split almost evenly too, at 88% and 88% positive.

UpkeepUpdate frequency

Nujible+ Attention Training ships an update monthly, Simple Stretch Timer every 22 months. The most recent releases landed on October 14, 2026 and September 27, 2026 respectively.

Scorecard4 real differences · 6 level
Nujible+ Attention Training versus Simple Stretch Timer: the parameters behind the verdict, then further details
ParameterNujible+ Attention TrainingSimple Stretch Timer
PriceFreeFree
Rating4.7 (14 ratings)4.9 (23 ratings) — better
Positive reviews87.5% of reviews87.5% of reviews
Number of ratings1423 — better
Update frequencyMonthly — betterEvery 22 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size13 MB0 MB
Age rating4+4+
DeveloperSergio DelgadoRex Garland

Customer experience

Nujible+ Attention Training

All ratings14 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews8 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

Simple Stretch Timer

All ratings23 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews16 reviews
Positive87.5%
Neutral6.3%
Negative6.3%

In-app purchases

3 purchases

Nujible+ Attention Training

Subscriptions2
  • Quarterly Subscription$5.993 Months
  • Yearly Subscription$19.991 Year
One-time1
  • Lifetime Subscription$49.99
None

Simple Stretch Timer

No in-app purchases

Questions

Is Nujible+ Attention Training free?
Nujible+ Attention Training is free to download, with in-app purchases available.
Is Simple Stretch Timer free?
Simple Stretch Timer is free to download, with no in-app purchases.
Which has better reviews, Nujible+ Attention Training or Simple Stretch Timer?
Simple Stretch Timer is rated higher. Nujible+ Attention Training averages 4.7 out of 5 from 14 ratings, while Simple Stretch Timer averages 4.9 from 23 ratings.
Do Nujible+ Attention Training or Simple Stretch Timer have ads?
Neither Nujible+ Attention Training nor Simple Stretch Timer shows ads.
Which is updated more often, Nujible+ Attention Training or Simple Stretch Timer?
Nujible+ Attention Training ships an update monthly, and Simple Stretch Timer every 22 months. Most recently, Nujible+ Attention Training was updated on October 14, 2026 and Simple Stretch Timer on September 27, 2026.

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