Comparison

3+ PRO vs DiaTimer

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

Head to head
About

3+ PRO

Track daily activity like steps, distance, and calories. Set personalized fitness goals and monitor progress. Features include heart rate monitoring, smart notifications, and weather updates, with data syncing to HealthKit.

Highlights
  • Activity tracking (steps, distance, calories)
  • Personalized goal setting
  • Heart rate monitoring
  • Smart notifications
  • Weather updates
  • HealthKit synchronization
Read full description

Overview Activity Tracking: Monitor your daily steps taken, distance traveled, calories burned and more. Personal Goal Setting: Set personalized step, calorie, distance, active minutes and sleep goals based on your activity level to reach your target fitness level. Health information can be synchronized to Health Kit. Smart Features Heart Rate Monitor: Maintain your heart rate level during workouts or measure your resting heart rate to see how your fitness level has improved over time. Smart Notifications: Receive and read a variety of notifications all on the watch. Weather App: Check today’s weather . Health information can be synchronized to HealthKit.

About

DiaTimer

This app assists individuals with diabetes in managing insulin administration and meal planning. It calculates carbohydrate values for inputted foods and determines the necessary "Spray-eat distance" based on blood sugar levels, initiating a timer for meal consumption. Users can add custom foods and unlock more personalized entries with a premium subscription.

Highlights
  • Carbohydrate calculation for meals
  • Blood sugar to meal timer calculation
  • Custom food entry registration
  • Personalized food entries (premium)
  • Insulin administration assistance
  • Meal planning support
Features
Read full description

The DiaTimer app serves as your daily companion for insulin administration and meal planning. Simply input the foods along with their respective weights, and the app will automatically calculate the carbohydrate value. Enter your current blood sugar level to determine the necessary Spray-eat distance (SED), and the timer will initiate automatically. Once the timer expires, you can savor your meal. Register to include your own foods and seamlessly integrate them into the app. Unlock additional features with a premium subscription, allowing you to create and utilize up to 100 personalized food entries within the application Important Note: DiaTimer is designed for individuals living with diabetes. It does not substitute active diabetes therapy, medical advice, diagnosis, or treatment; rather, it functions as a helpful tool for inputting and calculating daily meals and injection-to-eating intervals. You are responsible for your actions. Always consult your doctor before implementing any medical measures. We disclaim any liability for damages, including consequential damages, resulting from the use of this information. Please take a moment to review the terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Kindly familiarize yourself with the data privacy policy: https://androdevs.de/diatimer-privacy-policy

Screenshots

3+ PRO4 screens
DiaTimer4 screens

Verdict

The call

The clearest difference is review sentiment: DiaTimer at 100% against 3+ PRO's 43%. DiaTimer also leads on update cadence (every 6 days vs every 2 months). 3+ PRO's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, device support and iOS requirement 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. DiaTimer sells 2 in-app purchases, starting at $0.49 per month. 3+ PRO asks for nothing beyond the download.

UpkeepUpdate frequency

3+ PRO ships an update every 2 months, DiaTimer every 6 days. The most recent releases landed on September 23, 2026 and June 7, 2026 respectively.

Scorecard5 real differences · 5 level
3+ PRO versus DiaTimer: the parameters behind the verdict, then further details
Parameter3+ PRODiaTimer
PriceFreeFree
Rating3.6 (576 ratings) — better—
Positive reviews42.6% of reviews100.0% of reviews — better
Number of ratings576 — better—
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better12.0
Further details — not scored
Size106 MB78 MB
Age rating4+4+
Developer3Plus InternationalAlexander Gerk

Customer experience

3+ PRO

All ratings576 ratings
Positive58.9%
Neutral13.9%
Negative27.3%
Written reviews136 reviews
Positive42.6%
Neutral21.3%
Negative36.0%

DiaTimer

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

3+ PRO

Reported bugs

4 issues
  • App crashes and freezes
  • Inaccurate activity tracking
  • Compatibility issues with newer devices
  • Inability to change time format

Requested features

4 requests
  • Add call and text functionality
  • Expand workout tracking options
  • Improve watch face customization
  • Implement sleep tracking feature

DiaTimer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

3+ PRO

No in-app purchases

2 purchases

DiaTimer

Subscriptions2
  • DiaTimer Premium (monthly)$0.491 Month
  • DiaTimer Premium (yearly)$4.991 Year

Questions

Is 3+ PRO free?
3+ PRO is free to download, with no in-app purchases.
Is DiaTimer free?
DiaTimer is free to download, with in-app purchases available.
Do 3+ PRO or DiaTimer have ads?
DiaTimer shows ads; 3+ PRO does not.
Which is updated more often, 3+ PRO or DiaTimer?
3+ PRO ships an update every 2 months, and DiaTimer every 6 days. Most recently, 3+ PRO was updated on September 23, 2026 and DiaTimer on June 7, 2026.

Other comparisons