Calculate doses from live Dexcom blood sugars!

- No. 1 insulin dosing app in 11 countries - 35,000 users
- Best Patient Decision Support - as voted by JDRF
- Winner of Stanford's 'DiabetesMine' Patient Voices competition

"The killer feature of Jade is the visual prediction and the easy correction of carb and correction ratios directly from the graph. Within the first two days it was easy to correct ratios and fine tune the predictions" - Marius, Germany
"Dexcom data 3 hours faster than Diasend" - Gillian, USA
"Reduced my daughter's estimated A1C from 9.5% to 7.2% in three weeks" - Lisa, Australia

Provides the dose calculations of a pump with Blood Glucose predictions traditionally associated with CGMs.


• Designed for type 1s and other insulin users (type 2, type 1.5 / LADA, gestational diabetes)
• Integrates Apple Health for Blood Glucose, Insulin, Carbohydrate, Protein, Fat, Fiber, Exercise, Menstruation, Pain
- works with food apps, connected glucometers, exercise devices, period trackers, pain trackers and digital insulin pens
• Insulin dose calculator / Logger
- multiple carb ratios and correction ratios
- multiple BG targets
- tracks active insulin / insulin on board in the same way as a pump
- factors for multiple levels of exercise, menstruation, stress, sickness, pain and more
• Neat and clear graphs with ACTUAL blood glucose curves
- see hidden highs between blood tests
- helps explain **expected** versus **unexpected** BGs
• Configurable reminders
• Basal rates for pump users, and split dose logging
• Over 60 log types from Blood Pressure to Kidney Function
• Fully-featured reporting
• Time in Range / trends similar to CGMS but lower cost
• A1C estimate
• Live Health Care Team sharing
• Live syncing between multiple devices
• mg/dL or mmol/L blood glucose units
• Carbs in grams, portions, exchanges, BE, KE, CC
• A1C units in % or mmol/mol


• Predictions from 3-8 hours ahead
• Dose analysis and tips
• Include protein, fat and fiber in dose calculations
• Live Dexcom Share CGM data
• Live FreeStyle Libre data via Health and MiaoMiao, Tomato, Spike, Loop, NightRider
• Live data via NightScout
• Extensive reports
• Remote patient monitoring of multiple patients including kids at school and on camp
• Get free if your Health Care Professional uses a Jade Clinic Plan.


• Import of CSV, XML and Tab formats from 60+ diabetic devices including Accu-check Mobile, Agamatrix Zero-Click, Aviva, CoPilot, CareLink, Contour USB, DiaBass, Diasend, DexCom, GlucoFacts, Freestyle Insulinx, Medtronic, MySugr, Omnipod, OneTouch Ping, Ontrack, RapidCalc, SIDiary
• Export to Excel


We're always working to make Jade better! Have a problem, criticism, question, suggestion, or praise? It’s all super important to us, and we'd love to hear from you.

Includes Spanish, German, French, Italian, Russian, Arabic and Chinese translations.

(*) Jade gives you a 30-day free trial. After that, you can choose to stay with the Free Plan or upgrade to a monthly subscription. Payment will be charged to your iTunes Account at confirmation of purchase.

What’s New

Version 2.6.2

Time in Range is now based on CGM data where available.
Active insulin time can now be set in the app again.
Fixed local storage not saving settings. This affected Health, sound effects, reminders and tips

Ratings and Reviews

3.6 out of 5
38 Ratings

38 Ratings

Rlstites ,

Very helpful when personal data correctly added

Gray AMD thoughtful app made for conscientious type 1 diabetics! I use it daily to assist my dosing challenges!
It provides great guidance on carb ratio calculation and insulin dosing. Trouble is that I seldom eat the same meals or have the same exercise each day so my BG remains a challenge.
I do recommend the app and I purchased it at a 2 years for price of 1 around Christmas time. The developer obviously has to pay for the development and improvements so the price for value is reasonable in my opinion.

ccoates9642 ,

Most powerful and accurate tool

I have used predictbgl for years. It helped me get my a1c from 14.1 to 5.7. Empower yourself to take control of your diabetes. The coach portion of this program is the gold. When you enter a blood glucose level and carbs eaten, the program compares its prediction to the actual results and gives you immediate feedback as to potential changes in your ratios. This is taking control and giving you and your doctor valuable feedback to adjust your treatment if needed. The program accurately predicts your blood sugar levels for hours into the future. The dose calculator takes into account carb ratios and correction ratios. Impotant things like insulin on board and insulin stacking are prominently displayed. The program does EVERYTHING it says it will do plus so much more. Type 1 ot type 2. On pills or insulin..shots or pump..this program is for all. Very valuable calculations for the impact of sickness, menstruation, alcohol etc is easily set up for your time periods can automatically adjust your insulin doses. Customer service at this company surpasses expectations. They care about their customers. It is well worth the paid features offered in the program.

Developer Response ,

Thanks for your feedback!
Regards, PredictBGL Team


Every T1 Diabetic needs Jade

I’ve been a T1 Diabetic since 1973 , just days before my 8th birthday.
When iPhones came out and BG apps started popping up on the App Store , I tried them all and wasted a lot of time and money. The apps either didn’t do what they said it would, or if it did work, it wasn’t accurate.
Accurate numbers are essential for BG control, and Jade does it well, plus so much more.
I’ve literally tested my BG to compare to my Dexcom G6 and Jade is closer 9 out of 10 times. You can’t get results like that with any other app. Now I don’t even bother looking. This is the one that does it all.

Developer Response ,

Awesome feedback - thank you so much!

App Privacy

The developer, ManageBGL Pty Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Contact Info
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You Might Also Like